diff --git a/.gitignore b/.gitignore index b455588..4e41fc1 100644 --- a/.gitignore +++ b/.gitignore @@ -2,6 +2,9 @@ # dependencies /node_modules + +# generated +/public/licenses.json /.pnp .pnp.js @@ -35,6 +38,7 @@ scripts/* !scripts/generate-language.ts !scripts/extract-oracle.ts !scripts/generate-erd.ts +!scripts/generate-licenses.ts !scripts/hooks/ data/* diff --git a/CHANGELOG.md b/CHANGELOG.md index 23956c4..bf8f0a8 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,5 +1,14 @@ # Changelog +## 2026-06-14 - PostgreSQL engine +You can now choose between SQLite and PostgreSQL in the menu above the schema. PostgreSQL gives proper data types. The editor also gained autocomplete for table and column names. + +## 2026-06-14 - Relational algebra mode +You can now answer questions with relational algebra instead of SQL. Use the SQL/RA toggle to switch. Expressions are converted to SQL and run the same way, and the generated SQL is shown for reference. + +## 2026-06-14 - More varied people in the database +The database now includes people who are neither students nor teachers. Some solutions that assumed every person is a student or a teacher will no longer be accepted. + ## 2026-03-19 - Changelog added A changelog has been added to the app to keep you updated on new features and bug fixes. diff --git a/README.md b/README.md index ba09e07..47f63ef 100644 --- a/README.md +++ b/README.md @@ -1,5 +1,5 @@ # SQL Validator -SQL Validator is a fully client-side web application powered by sql.js. Designed for the database course at Stockholm University, it provides an interface for students to write, format, and run SQL queries directly in their browser without the need for a database server. Results can be compared to expected results based on a question bank, and views can be created and managed using the browser's local storage. +SQL Validator is a fully client-side web application powered by sql.js. It provides an interface for writing, formatting, and running SQL queries directly in the browser without the need for a database server. Results can be compared to expected results based on a question bank, and views can be created and managed using the browser's local storage. ## Features - **Fully Client-Side Execution**: All SQL validation and execution is performed in the browser using sql.js SQLite. diff --git a/data/oracle-types.ts b/data/oracle-types.ts index 5e702fd..37d929d 100644 --- a/data/oracle-types.ts +++ b/data/oracle-types.ts @@ -94,6 +94,17 @@ export interface OracleQuestion { * these alternatives are only used for validation. */ alternativeQueries?: string[]; + /** + * PostgreSQL-specific reference query, using the same placeholder format. + * Used instead of `query` when generating for a PostgreSQL-engine language. + * Only needed when the query differs from the SQLite version (e.g. EXTRACT vs YEAR). + */ + pgQuery?: string; + /** + * PostgreSQL-specific alternative queries. + * Falls back to `alternativeQueries` if not provided. + */ + pgAlternativeQueries?: string[]; } export interface OracleData { diff --git a/data/oracle.enc b/data/oracle.enc index f27117a..9be5508 100644 Binary files a/data/oracle.enc and b/data/oracle.enc differ diff --git a/languages/de.ts b/languages/de.ts index 473cc76..847ad49 100644 --- a/languages/de.ts +++ b/languages/de.ts @@ -97,6 +97,10 @@ const de: LanguageDefinition = { "131017-0051", "131017-0052", "131017-0053", + "131017-0054", + "131017-0055", + "131017-0056", + "131017-0057", ], postalCodes: [ "6900", @@ -120,6 +124,10 @@ const de: LanguageDefinition = { "4051", "4051", "6001", + "8002", + "6002", + "9001", + "4052", ], phones: [ "+41 76 123 45 67", @@ -143,6 +151,10 @@ const de: LanguageDefinition = { "+41 78 901 23 45", "+41 79 012 34 56", "+41 78 250 28 55", + "+41 76 111 22 33", + "+41 77 222 33 44", + "+41 78 333 44 55", + "+41 79 444 55 66", ], // ── Data: Courses ──────────────────────────────────────────── @@ -427,6 +439,47 @@ const de: LanguageDefinition = { "Warnung: Diese Speicherdatei wurde in einer anderen Sprache erstellt ({{fileLang}}). Der Import kann zu Problemen führen..", viewLabel: "View", changelog: "Änderungsprotokoll", + modeSQL: "SQL", + modeRA: "Relationale Algebra", + generatedSQL: "Generiertes SQL", + raParseError: "Fehler in relationaler Algebra: {{message}}", + engineLoadFailed: "Die PostgreSQL-Engine konnte nicht geladen werden. Wechsel zurück zu SQLite.", + raPlaceholder: "-- Schreibe einen Ausdruck der relationalen Algebra\n-- Klicke auf 'RA-Referenz' für die Syntax", + raReference: "Referenz relationale Algebra", + raUnaryOps: "Unäre Operatoren", + raBinaryOps: "Binäre Operatoren", + raColOp: "Operator", + raColSyntax: "Syntax", + raColDesc: "Beschreibung", + raDescSelection: "Selektion — Zeilen filtern", + raDescProjection: "Projektion — Spalten auswählen", + raDescRename: "Spalten umbenennen", + raDescGroup: "Gruppierung mit Aggregaten", + raDescSort: "Sortierung", + raDescDistinct: "Duplikate entfernen", + raDescCross: "Kreuzprodukt", + raDescNatJoin: "Natürlicher Join", + raDescThetaJoin: "Theta-Join (bedingt)", + raDescUnion: "Vereinigung", + raDescIntersect: "Schnittmenge", + raDescMinus: "Differenz", + raDescDivide: "Division", + raNotation: "Notationsstile", + raNoteBrackets: "— eckige Klammern", + raNoteCurly: "— geschweifte Klammern", + raNoteLaTeX: "— LaTeX-Stil", + raNoteImplicit: "— ohne Klammern", + raNoteChain: "— Verkettung ohne ()", + raAssignment: "Zuweisung", + raNoteAssignment: "Die letzte Zuweisung wird automatisch zurückgegeben", + raConditions: "Bedingungen", + raNoteComparison: "Vergleichsoperatoren: = <> < > <= >=", + editorSettings: "Editor-Einstellungen", + settingAutocomplete: "Autovervollständigung", + settingLineNumbers: "Zeilennummern", + settingHighlightActiveLine: "Aktive Zeile hervorheben", + sqlReferencePostgresql: "PostgreSQL-Dokumentation", + engineMismatchWarning: "Warnung: Diese Speicherdatei wurde mit einer anderen Datenbank-Engine erstellt ({{fileEngine}}). Der Import kann zu Problemen führen.", }, }; diff --git a/languages/en.ts b/languages/en.ts index 6a06061..2054d87 100644 --- a/languages/en.ts +++ b/languages/en.ts @@ -97,6 +97,10 @@ const en: LanguageDefinition = { "EN-019", "EN-020", "EN-021", + "EN-022", + "EN-023", + "EN-024", + "EN-025", ], postalCodes: [ "GU1 1AA", @@ -120,6 +124,10 @@ const en: LanguageDefinition = { "BA4 1AS", "BA5 2AT", "CB4 3AU", + "YO5 4AV", + "CB6 5AW", + "OX5 6AX", + "BA6 7AY", ], phones: [ "01234567890", @@ -143,6 +151,10 @@ const en: LanguageDefinition = { "01234567908", "01234567909", "01234567910", + "01234567911", + "01234567912", + "01234567913", + "01234567914", ], // ── Data: Courses ──────────────────────────────────────────── @@ -427,6 +439,47 @@ const en: LanguageDefinition = { "Warning: This save file was created with a different language ({{fileLang}}). Importing may cause issues.", viewLabel: "View", changelog: "Changelog", + modeSQL: "SQL", + modeRA: "Relational Algebra", + generatedSQL: "Generated SQL", + raParseError: "Relational algebra error: {{message}}", + engineLoadFailed: "Failed to load the PostgreSQL engine. Falling back to SQLite.", + raPlaceholder: "-- Write a relational algebra expression\n-- Click 'RA Reference' for syntax", + raReference: "Relational Algebra Reference", + raUnaryOps: "Unary Operators", + raBinaryOps: "Binary Operators", + raColOp: "Operator", + raColSyntax: "Syntax", + raColDesc: "Description", + raDescSelection: "Selection — filter rows", + raDescProjection: "Projection — pick columns", + raDescRename: "Rename columns", + raDescGroup: "Grouping with aggregates", + raDescSort: "Sort", + raDescDistinct: "Remove duplicates", + raDescCross: "Cross product", + raDescNatJoin: "Natural join", + raDescThetaJoin: "Theta join (conditional)", + raDescUnion: "Union", + raDescIntersect: "Intersection", + raDescMinus: "Difference", + raDescDivide: "Division", + raNotation: "Notation Styles", + raNoteBrackets: "— square brackets", + raNoteCurly: "— curly braces", + raNoteLaTeX: "— LaTeX style", + raNoteImplicit: "— no brackets", + raNoteChain: "— chaining without ()", + raAssignment: "Assignment", + raNoteAssignment: "Last assignment is returned automatically", + raConditions: "Conditions", + raNoteComparison: "Comparison operators: = <> < > <= >=", + editorSettings: "Editor Settings", + settingAutocomplete: "Autocomplete", + settingLineNumbers: "Line Numbers", + settingHighlightActiveLine: "Highlight Active Line", + sqlReferencePostgresql: "PostgreSQL Documentation", + engineMismatchWarning: "Warning: This save file was created with a different database engine ({{fileEngine}}). Importing may cause issues.", }, }; diff --git a/languages/sv-pg.ts b/languages/sv-pg.ts new file mode 100644 index 0000000..2a0ec82 --- /dev/null +++ b/languages/sv-pg.ts @@ -0,0 +1,11 @@ +import { LanguageDefinition } from "./types"; +import sv from "./sv"; + +const svPg: LanguageDefinition = { + ...sv, + code: "sv-pg", + displayName: "Svenska (PostgreSQL)", + engine: "postgresql", +}; + +export default svPg; diff --git a/languages/sv.ts b/languages/sv.ts index 9b59c34..67c8a66 100644 --- a/languages/sv.ts +++ b/languages/sv.ts @@ -97,6 +97,10 @@ const sv: LanguageDefinition = { "131017-0051", "131017-0052", "131017-0053", + "131017-0054", + "131017-0055", + "131017-0056", + "131017-0057", ], postalCodes: [ "19122", @@ -120,6 +124,10 @@ const sv: LanguageDefinition = { "16966", "16966", "18753", + "16955", + "17012", + "18760", + "19044", ], phones: [ "151576", @@ -143,6 +151,10 @@ const sv: LanguageDefinition = { "449867", "665844", "770691", + "112233", + "445566", + "778899", + "223344", ], // ── Data: Courses ──────────────────────────────────────────── @@ -427,6 +439,47 @@ const sv: LanguageDefinition = { "Warning: This save file was created with a different language ({{fileLang}}). Importing may cause issues.", viewLabel: "View", changelog: "Changelog", + modeSQL: "SQL", + modeRA: "Relationsalgebra", + generatedSQL: "Genererad SQL", + raParseError: "Relationsalgebra-fel: {{message}}", + engineLoadFailed: "Kunde inte ladda PostgreSQL-motorn. Återgår till SQLite.", + raPlaceholder: "-- Skriv ett relationsalgebrauttryck\n-- Klicka på 'RA-referens' för syntax", + raReference: "Relationsalgebrareferens", + raUnaryOps: "Unära operatorer", + raBinaryOps: "Binära operatorer", + raColOp: "Operator", + raColSyntax: "Syntax", + raColDesc: "Beskrivning", + raDescSelection: "Selektion — filtrera rader", + raDescProjection: "Projektion — välj kolumner", + raDescRename: "Namnbyte — byt namn på kolumner", + raDescGroup: "Gruppering med aggregat", + raDescSort: "Sortering", + raDescDistinct: "Ta bort dubbletter", + raDescCross: "Korsprodukt", + raDescNatJoin: "Naturlig join", + raDescThetaJoin: "Theta-join (villkorlig)", + raDescUnion: "Union", + raDescIntersect: "Snitt", + raDescMinus: "Differens", + raDescDivide: "Division", + raNotation: "Notationsalternativ", + raNoteBrackets: "— hakparenteser", + raNoteCurly: "— klammerparenteser", + raNoteLaTeX: "— LaTeX-stil", + raNoteImplicit: "— utan parenteser", + raNoteChain: "— kedjning utan ()", + raAssignment: "Tilldelning", + raNoteAssignment: "Sista tilldelningen returneras automatiskt", + raConditions: "Villkor", + raNoteComparison: "Jämförelseoperatorer: = <> < > <= >=", + editorSettings: "Editorinställningar", + settingAutocomplete: "Autokomplettering", + settingLineNumbers: "Radnummer", + settingHighlightActiveLine: "Markera aktiv rad", + sqlReferencePostgresql: "PostgreSQL-dokumentation", + engineMismatchWarning: "Varning: Denna sparfil skapades med en annan databasmotor ({{fileEngine}}). Import kan orsaka problem.", }, }; diff --git a/languages/types.ts b/languages/types.ts index c87566d..4b48343 100644 --- a/languages/types.ts +++ b/languages/types.ts @@ -39,6 +39,8 @@ export interface LanguageDefinition { code: string; /** Display name in the language itself, e.g. "Svenska", "English" */ displayName: string; + /** Database engine: "sqlite" (default) or "postgresql" */ + engine?: "sqlite" | "postgresql"; // ── Data: Names ────────────────────────────────────────────── /** First names pool (min 15, indexed by canonical person slot) */ diff --git a/package-lock.json b/package-lock.json index 47ccd8e..ffc1b2e 100644 --- a/package-lock.json +++ b/package-lock.json @@ -8,6 +8,9 @@ "name": "sql-validator", "version": "1.0.0", "dependencies": { + "@codemirror/lang-sql": "^6.10.0", + "@codemirror/theme-one-dark": "^6.1.3", + "@electric-sql/pglite": "^0.4.1", "@radix-ui/react-checkbox": "^1.3.3", "@radix-ui/react-dialog": "^1.1.15", "@radix-ui/react-dropdown-menu": "^2.1.16", @@ -25,6 +28,7 @@ "@types/react-dom": "^18.3.0", "@types/react-syntax-highlighter": "^15.5.13", "@types/sql.js": "^1.4.9", + "@uiw/react-codemirror": "^4.25.8", "class-variance-authority": "^0.7.1", "clsx": "^2.1.1", "crypto-js": "^4.2.0", @@ -34,7 +38,6 @@ "prismjs": "^1.30.0", "react": "^18.3.1", "react-dom": "^18.3.1", - "react-simple-code-editor": "^0.13.1", "react-syntax-highlighter": "^16.1.0", "sql-formatter": "^15.3.1", "sql.js": "^1.10.3", @@ -63,7 +66,8 @@ "typescript": "^5.9.3", "typescript-eslint": "^8.15.0", "vite": "^7.1.10", - "vite-plugin-node-polyfills": "^0.24.0" + "vite-plugin-node-polyfills": "^0.24.0", + "vitest": "^4.1.0" } }, "node_modules/@acemir/cssom": { @@ -471,6 +475,113 @@ "specificity": "bin/cli.js" } }, + "node_modules/@codemirror/autocomplete": { + "version": "6.20.1", + "resolved": "https://registry.npmjs.org/@codemirror/autocomplete/-/autocomplete-6.20.1.tgz", + "integrity": 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"@vitest/browser-webdriverio": "4.1.0", + "@vitest/ui": "4.1.0", + "happy-dom": "*", + "jsdom": "*", + "vite": "^6.0.0 || ^7.0.0 || ^8.0.0-0" + }, + "peerDependenciesMeta": { + "@edge-runtime/vm": { + "optional": true + }, + "@opentelemetry/api": { + "optional": true + }, + "@types/node": { + "optional": true + }, + "@vitest/browser-playwright": { + "optional": true + }, + "@vitest/browser-preview": { + "optional": true + }, + "@vitest/browser-webdriverio": { + "optional": true + }, + "@vitest/ui": { + "optional": true + }, + "happy-dom": { + "optional": true + }, + "jsdom": { + "optional": true + }, + "vite": { + "optional": false + } + } + }, "node_modules/vm-browserify": { "version": "1.1.2", "resolved": "https://registry.npmjs.org/vm-browserify/-/vm-browserify-1.1.2.tgz", @@ -10716,6 +11266,12 @@ "dev": true, "license": "MIT" }, + "node_modules/w3c-keyname": { + "version": "2.2.8", + "resolved": "https://registry.npmjs.org/w3c-keyname/-/w3c-keyname-2.2.8.tgz", + "integrity": "sha512-dpojBhNsCNN7T82Tm7k26A6G9ML3NkhDsnw9n/eoxSRlVBB4CEtIQ/KTCLI2Fwf3ataSXRhYFkQi3SlnFwPvPQ==", + "license": "MIT" + }, "node_modules/w3c-xmlserializer": { "version": "5.0.0", "resolved": "https://registry.npmjs.org/w3c-xmlserializer/-/w3c-xmlserializer-5.0.0.tgz", @@ -10879,6 +11435,23 @@ "url": "https://github.com/sponsors/ljharb" } }, + "node_modules/why-is-node-running": { + "version": "2.3.0", + "resolved": "https://registry.npmjs.org/why-is-node-running/-/why-is-node-running-2.3.0.tgz", + "integrity": "sha512-hUrmaWBdVDcxvYqnyh09zunKzROWjbZTiNy8dBEjkS7ehEDQibXJ7XvlmtbwuTclUiIyN+CyXQD4Vmko8fNm8w==", + "dev": true, + "license": "MIT", + "dependencies": { + "siginfo": "^2.0.0", + "stackback": "0.0.2" + }, + "bin": { + "why-is-node-running": "cli.js" + }, + "engines": { + "node": ">=8" + } + }, "node_modules/word-wrap": { "version": "1.2.5", "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.5.tgz", diff --git a/package.json b/package.json index 74989cb..73f151b 100644 --- a/package.json +++ b/package.json @@ -3,6 +3,9 @@ "version": "1.0.0", "private": true, "dependencies": { + "@codemirror/lang-sql": "^6.10.0", + "@codemirror/theme-one-dark": "^6.1.3", + "@electric-sql/pglite": "^0.4.1", "@radix-ui/react-checkbox": "^1.3.3", "@radix-ui/react-dialog": "^1.1.15", "@radix-ui/react-dropdown-menu": "^2.1.16", @@ -20,6 +23,7 @@ "@types/react-dom": "^18.3.0", "@types/react-syntax-highlighter": "^15.5.13", "@types/sql.js": "^1.4.9", + "@uiw/react-codemirror": "^4.25.8", "class-variance-authority": "^0.7.1", "clsx": "^2.1.1", "crypto-js": "^4.2.0", @@ -29,7 +33,6 @@ "prismjs": "^1.30.0", "react": "^18.3.1", "react-dom": "^18.3.1", - "react-simple-code-editor": "^0.13.1", "react-syntax-highlighter": "^16.1.0", "sql-formatter": "^15.3.1", "sql.js": "^1.10.3", @@ -40,7 +43,7 @@ "scripts": { "dev": "npm-run-all copy-sqljs start-vite", "start": "npm-run-all copy-sqljs start-vite", - "build": "npm-run-all copy-sqljs build-vite", + "build": "npm-run-all copy-sqljs generate-licenses build-vite", "preview": "vite preview", "copy-sqljs": "copyfiles -f node_modules/sql.js/dist/sql-wasm.wasm public/dist/sql.js/", "start-vite": "vite", @@ -50,6 +53,7 @@ "decrypt-oracle": "tsx scripts/decrypt-oracle.ts", "encrypt-oracle": "tsx scripts/encrypt-oracle.ts", "generate-erd": "tsx scripts/generate-erd.ts", + "generate-licenses": "tsx scripts/generate-licenses.ts", "generate-all": "tsx scripts/generate-language.ts --all --plain && tsx scripts/generate-erd.ts --all" }, "eslintConfig": { @@ -91,6 +95,7 @@ "typescript": "^5.9.3", "typescript-eslint": "^8.15.0", "vite": "^7.1.10", - "vite-plugin-node-polyfills": "^0.24.0" + "vite-plugin-node-polyfills": "^0.24.0", + "vitest": "^4.1.0" } } diff --git a/public/languages/de-pg/data.sql b/public/languages/de-pg/data.sql new file mode 100644 index 0000000..e0068c8 --- /dev/null +++ b/public/languages/de-pg/data.sql @@ -0,0 +1,145 @@ +CREATE TABLE Person (persNr TEXT NOT NULL, name TEXT NOT NULL, strasse TEXT NOT NULL, plz TEXT NOT NULL, ort TEXT NOT NULL, telefon TEXT NOT NULL, PRIMARY KEY (persNr)); +CREATE TABLE Seminarraum (id INTEGER NOT NULL, name TEXT NOT NULL, anzahlPlaetze INTEGER NOT NULL, PRIMARY KEY (id)); +CREATE UNIQUE INDEX rum_namn ON Seminarraum (name); +CREATE TABLE Student (persNr TEXT NOT NULL, nachteilsausgleich BOOLEAN NOT NULL, CONSTRAINT STUDENT_PK PRIMARY KEY (persNr), CONSTRAINT Student_Person_FK FOREIGN KEY (persNr) REFERENCES Person (persNr) ON DELETE RESTRICT ON UPDATE CASCADE); +CREATE TABLE Dozent (persNr TEXT NOT NULL, bueroNr INTEGER NOT NULL, CONSTRAINT teacher_pk PRIMARY KEY (persNr), CONSTRAINT fk_teacher_person FOREIGN KEY (persNr) REFERENCES Person (persNr) ON DELETE RESTRICT ON UPDATE CASCADE); +CREATE TABLE Modul (kuerzel TEXT NOT NULL, name TEXT NOT NULL, kurstage INTEGER NOT NULL, preis INTEGER NOT NULL, beschreibung TEXT NOT NULL, PRIMARY KEY (kuerzel)); +CREATE UNIQUE INDEX kurs_ben ON Modul (name); +CREATE TABLE Kursdurchfuehrung (modulkuerzel TEXT NOT NULL, startdatum DATE NOT NULL, dozentNr TEXT NOT NULL, raumID INTEGER NOT NULL, CONSTRAINT courseinstance_pk PRIMARY KEY (modulkuerzel, startdatum), CONSTRAINT fk_courseinstance_course FOREIGN KEY (modulkuerzel) REFERENCES Modul (kuerzel) ON DELETE RESTRICT ON UPDATE CASCADE, CONSTRAINT fk_courseinstance_teacher FOREIGN KEY (dozentNr) REFERENCES Dozent (persNr) ON DELETE RESTRICT ON UPDATE CASCADE, CONSTRAINT fk_courseinstance_room FOREIGN KEY (raumID) REFERENCES Seminarraum (id) ON DELETE RESTRICT ON UPDATE CASCADE); +CREATE TABLE Teilnehmer (studNr TEXT NOT NULL, modulkuerzel TEXT NOT NULL, startdatum DATE NOT NULL, CONSTRAINT participation_pk PRIMARY KEY (modulkuerzel, startdatum, studNr), CONSTRAINT fk_participation_courseinstance FOREIGN KEY (modulkuerzel, startdatum) REFERENCES Kursdurchfuehrung (modulkuerzel, startdatum) ON DELETE RESTRICT ON UPDATE CASCADE, CONSTRAINT fk_participation_student FOREIGN KEY (studNr) REFERENCES Student (persNr) ON DELETE RESTRICT ON UPDATE CASCADE); +INSERT INTO Person VALUES ('111017-0001', 'Lukas Meier', 'Bahnhofstrasse 1', '6900', 'Lugano', '+41 76 123 45 67'); +INSERT INTO Person VALUES ('111017-0002', 'Marco Rossi', 'Marktgasse 2', '9000', 'St. Gallen', '+41 77 234 56 78'); +INSERT INTO Person VALUES ('111017-0003', 'Jean Dupont', 'Bahnhofplatz 3', '8001', 'Zürich', '+41 78 345 67 89'); +INSERT INTO Person VALUES ('111017-0004', 'Sophie Keller', 'Dorfstrasse 4', '6003', 'Luzern', '+41 79 456 78 90'); +INSERT INTO Person VALUES ('111017-0005', 'Anna Bianchi', 'Zollstrasse 5', '8044', 'Zürich', '+41 76 567 89 01'); +INSERT INTO Person VALUES ('121017-0001', 'Marco Schmid', 'Burgstrasse 6', '8401', 'Winterthur', '+41 77 678 90 12'); +INSERT INTO Person VALUES ('121017-0002', 'Peter Müller', 'Alte Landstrasse 3', '3006', 'Bern', '+41 78 789 01 23'); +INSERT INTO Person VALUES ('121017-0003', 'Claire Steiner', 'Kirchgasse 4', '8404', 'Winterthur', '+41 79 890 12 34'); +INSERT INTO Person VALUES ('121017-0004', 'Giulia Brunner', 'Schulstrasse 1', '3004', 'Bern', '+41 76 901 23 45'); +INSERT INTO Person VALUES ('121017-0005', 'Thomas Dubois', 'Birkenweg 3', '4051', 'Basel', '+41 77 012 34 56'); +INSERT INTO Person VALUES ('121017-0006', 'Daniel Rochat', 'Eichtalstrasse 2', '3007', 'Bern', '+41 78 123 45 67'); +INSERT INTO Person VALUES ('121017-0007', 'Monika Frei', 'Eichtalstrasse 24', '3006', 'Bern', '+41 79 234 56 78'); +INSERT INTO Person VALUES ('121017-0008', 'Andrea Huber', 'St. Jakobstrasse 112', '8640', 'Rapperswil', '+41 76 345 67 89'); +INSERT INTO Person VALUES ('121017-0009', 'Pascal Baumann', 'Auenweg 5', '4051', 'Basel', '+41 77 456 78 90'); +INSERT INTO Person VALUES ('121017-0010', 'Isabelle Haller', 'Lillgatan 3', '6003', 'Luzern', '+41 78 567 89 01'); +INSERT INTO Person VALUES ('121018-0040', 'Chiara Weber', 'Industriestrasse 44', '8001', 'Zürich', '+41 79 678 90 12'); +INSERT INTO Person VALUES ('121117-0041', 'Pascal Conti', 'Rosengartenstrasse 15b', '8002', 'Zürich', '+41 76 789 01 23'); +INSERT INTO Person VALUES ('131017-0050', 'Jean Richter', 'Abendrain 4', '4051', 'Basel', '+41 77 890 12 33'); +INSERT INTO Person VALUES ('131017-0051', 'Pascal Baumann', 'Birkenweg 12', '4051', 'Basel', '+41 78 901 23 45'); +INSERT INTO Person VALUES ('131017-0052', 'Thomas Dubois', 'Birkenweg 1', '4051', 'Basel', '+41 79 012 34 56'); +INSERT INTO Person VALUES ('131017-0053', 'Marco Schmid', 'Dorfstrasse 63', '6001', 'Luzern', '+41 78 250 28 55'); +INSERT INTO Person VALUES ('131017-0054', 'Monika Huber', 'Schulstrasse 14', '8002', 'Basel', '+41 76 111 22 33'); +INSERT INTO Person VALUES ('131017-0055', 'Andrea Haller', 'Eichtalstrasse 7', '6002', 'Zürich', '+41 77 222 33 44'); +INSERT INTO Person VALUES ('131017-0056', 'Isabelle Conti', 'Auenweg 22', '9001', 'Winterthur', '+41 78 333 44 55'); +INSERT INTO Person VALUES ('131017-0057', 'Daniel Brunner', 'Burgstrasse 3', '4052', 'Lugano', '+41 79 444 55 66'); +INSERT INTO Seminarraum VALUES (1, 'Jupiter', 12); +INSERT INTO Seminarraum VALUES (2, 'Orion', 24); +INSERT INTO Seminarraum VALUES (3, 'Sirius', 16); +INSERT INTO Seminarraum VALUES (4, 'Tellus', 32); +INSERT INTO Seminarraum VALUES (5, 'Saturnus', 24); +INSERT INTO Student VALUES ('111017-0001', FALSE); +INSERT INTO Student VALUES ('121017-0001', FALSE); +INSERT INTO Student VALUES ('121017-0002', TRUE); +INSERT INTO Student VALUES ('121017-0003', FALSE); +INSERT INTO Student VALUES ('121017-0004', FALSE); +INSERT INTO Student VALUES ('121017-0005', FALSE); +INSERT INTO Student VALUES ('121017-0006', TRUE); +INSERT INTO Student VALUES ('121017-0007', FALSE); +INSERT INTO Student VALUES ('121017-0008', FALSE); +INSERT INTO Student VALUES ('121017-0009', FALSE); +INSERT INTO Student VALUES ('121017-0010', TRUE); +INSERT INTO Student VALUES ('121018-0040', FALSE); +INSERT INTO Student VALUES ('121117-0041', TRUE); +INSERT INTO Student VALUES ('131017-0050', FALSE); +INSERT INTO Student VALUES ('131017-0051', FALSE); +INSERT INTO Student VALUES ('131017-0052', TRUE); +INSERT INTO Student VALUES ('131017-0053', FALSE); +INSERT INTO Dozent VALUES ('111017-0001', 634); +INSERT INTO Dozent VALUES ('111017-0002', 604); +INSERT INTO Dozent VALUES ('111017-0003', 603); +INSERT INTO Dozent VALUES ('111017-0004', 605); +INSERT INTO Dozent VALUES ('111017-0005', 622); +INSERT INTO Dozent VALUES ('131017-0050', 558); +INSERT INTO Modul VALUES ('DBM1', 'Datenbankmanagement 1', 2, 2800, 'DB-Grundlagen, Normalisierung, Modellierung, SQL'); +INSERT INTO Modul VALUES ('PDBD', 'Physisches Datenbank-Design', 5, 7200, 'Speicherstrukturen, Index, Denormalisierung'); +INSERT INTO Modul VALUES ('Java1', 'Java-Grundkurs', 5, 6700, 'Grundlagen der Programmierung mit Java'); +INSERT INTO Modul VALUES ('Java2', 'Java-Fortsetzungskurs', 4, 6000, 'Fortgeschrittene Programmierung mit Java'); +INSERT INTO Modul VALUES ('LDBD', 'Logisches Datenbank-Design', 4, 6000, 'Fortgeschrittenes Design, Analysemuster, Metamodellierung'); +INSERT INTO Modul VALUES ('Log1', 'Logik', 3, 4500, 'Prädikatenlogik erster und höherer Stufen, sowie Aussagenlogik'); +INSERT INTO Kursdurchfuehrung VALUES ('Java1', '2008-03-06T00:00:00.000Z', '111017-0002', 4); +INSERT INTO Kursdurchfuehrung VALUES ('DBM1', '2008-04-02T00:00:00.000Z', '111017-0005', 3); +INSERT INTO Kursdurchfuehrung VALUES ('Java2', '2008-04-16T00:00:00.000Z', '111017-0002', 2); +INSERT INTO Kursdurchfuehrung VALUES ('Log1', '2008-04-16T00:00:00.000Z', '111017-0003', 1); +INSERT INTO Kursdurchfuehrung VALUES ('Java1', '2008-05-06T00:00:00.000Z', '111017-0002', 1); +INSERT INTO Kursdurchfuehrung VALUES ('LDBD', '2008-05-06T00:00:00.000Z', '111017-0005', 3); +INSERT INTO Kursdurchfuehrung VALUES ('PDBD', '2008-05-09T00:00:00.000Z', '111017-0004', 1); +INSERT INTO Kursdurchfuehrung VALUES ('Java1', '2008-09-02T00:00:00.000Z', '111017-0003', 4); +INSERT INTO Kursdurchfuehrung VALUES ('LDBD', '2008-09-02T00:00:00.000Z', '111017-0004', 2); +INSERT INTO Kursdurchfuehrung VALUES ('Java2', '2009-01-22T00:00:00.000Z', '111017-0002', 2); +INSERT INTO Kursdurchfuehrung VALUES ('DBM1', '2009-01-28T00:00:00.000Z', '111017-0005', 1); +INSERT INTO Kursdurchfuehrung VALUES ('Log1', '2009-09-17T00:00:00.000Z', '111017-0005', 1); +INSERT INTO Kursdurchfuehrung VALUES ('DBM1', '2010-02-15T00:00:00.000Z', '111017-0004', 3); +INSERT INTO Kursdurchfuehrung VALUES ('Java2', '2010-04-11T00:00:00.000Z', '131017-0050', 4); +INSERT INTO Kursdurchfuehrung VALUES ('Java1', '2010-05-01T00:00:00.000Z', '111017-0003', 5); +INSERT INTO Kursdurchfuehrung VALUES ('Log1', '2010-05-01T00:00:00.000Z', '111017-0002', 1); +INSERT INTO Kursdurchfuehrung VALUES ('DBM1', '2010-09-22T00:00:00.000Z', '131017-0050', 3); +INSERT INTO Kursdurchfuehrung VALUES ('LDBD', '2010-09-24T00:00:00.000Z', '111017-0004', 5); +INSERT INTO Kursdurchfuehrung VALUES ('Java1', '2011-05-01T00:00:00.000Z', '111017-0002', 5); +INSERT INTO Teilnehmer VALUES ('121017-0001', 'Java1', '2008-03-06T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0003', 'Java1', '2008-03-06T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0008', 'Java1', '2008-03-06T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0009', 'Java1', '2008-03-06T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0010', 'Java1', '2008-03-06T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('131017-0051', 'Java1', '2008-03-06T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0001', 'DBM1', '2008-04-02T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0002', 'DBM1', '2008-04-02T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0003', 'DBM1', '2008-04-02T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0010', 'DBM1', '2008-04-02T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0002', 'Java2', '2008-04-16T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0005', 'Java2', '2008-04-16T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0006', 'Java2', '2008-04-16T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0007', 'Java2', '2008-04-16T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0004', 'Log1', '2008-04-16T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0005', 'Log1', '2008-04-16T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0002', 'Java1', '2008-05-06T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0006', 'Java1', '2008-05-06T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0001', 'LDBD', '2008-05-06T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0007', 'LDBD', '2008-05-06T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0003', 'PDBD', '2008-05-09T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0006', 'PDBD', '2008-05-09T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0008', 'PDBD', '2008-05-09T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0001', 'Java1', '2008-09-02T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0009', 'Java1', '2008-09-02T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0006', 'LDBD', '2008-09-02T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0008', 'LDBD', '2008-09-02T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('131017-0050', 'LDBD', '2008-09-02T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0002', 'Java2', '2009-01-22T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0009', 'Java2', '2009-01-22T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0010', 'Java2', '2009-01-22T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('131017-0051', 'Java2', '2009-01-22T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0003', 'DBM1', '2009-01-28T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0005', 'DBM1', '2009-01-28T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('131017-0051', 'DBM1', '2009-01-28T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0004', 'Log1', '2009-09-17T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121117-0041', 'Log1', '2009-09-17T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0003', 'DBM1', '2010-02-15T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0006', 'DBM1', '2010-02-15T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0010', 'DBM1', '2010-02-15T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0004', 'Java2', '2010-04-11T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0005', 'Java2', '2010-04-11T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0007', 'Java2', '2010-04-11T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0010', 'Java2', '2010-04-11T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0006', 'Java1', '2010-05-01T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0007', 'Java1', '2010-05-01T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0008', 'Java1', '2010-05-01T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0005', 'Log1', '2010-05-01T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0008', 'Log1', '2010-05-01T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121018-0040', 'Log1', '2010-05-01T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('131017-0053', 'Log1', '2010-05-01T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0004', 'DBM1', '2010-09-22T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121018-0040', 'DBM1', '2010-09-22T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121117-0041', 'DBM1', '2010-09-22T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('131017-0052', 'DBM1', '2010-09-22T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121017-0008', 'LDBD', '2010-09-24T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121018-0040', 'LDBD', '2010-09-24T00:00:00.000Z'); +INSERT INTO Teilnehmer VALUES ('121117-0041', 'LDBD', '2010-09-24T00:00:00.000Z'); \ No newline at end of file diff --git a/public/languages/de-pg/questionpool.json b/public/languages/de-pg/questionpool.json new file mode 100644 index 0000000..4876197 --- /dev/null +++ b/public/languages/de-pg/questionpool.json @@ -0,0 +1 @@ +{"language":"de","engine":"postgresql","defaultQuery":"SELECT * FROM Student;","questions":[{"category_id":1,"display_number":1,"questions":[{"id":1,"description":"Gib die Personennummer, den Namen, die Strasse und die Postleitzahl der Personen aus, die in Basel wohnen!","display_sequence":"A","result":{"columns":["persnr","name","strasse","plz"],"values":[["121017-0005","Thomas Dubois","Birkenweg 3","4051"],["121017-0009","Pascal Baumann","Auenweg 5","4051"],["131017-0050","Jean Richter","Abendrain 4","4051"],["131017-0051","Pascal Baumann","Birkenweg 12","4051"],["131017-0052","Thomas Dubois","Birkenweg 1","4051"],["131017-0054","Monika Huber","Schulstrasse 14","8002"]]}},{"id":2,"description":"Gib die Personennummer, den Namen und die Telefonnummer der Personen aus, die in Basel 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45"],["131017-0053","Marco Schmid","+41 78 250 28 55"]]}},{"id":55,"description":"Gib die Personennummer, den Namen und den Ort der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Orion teilgenommen haben!","display_sequence":"B","result":{"columns":["persnr","name","ort"],"values":[["121017-0002","Peter Müller","Bern"],["121017-0005","Thomas Dubois","Basel"],["121017-0006","Daniel Rochat","Bern"],["121017-0007","Monika Frei","Bern"],["121017-0008","Andrea Huber","Rapperswil"],["121017-0009","Pascal Baumann","Basel"],["121017-0010","Isabelle Haller","Luzern"],["131017-0050","Jean Richter","Basel"],["131017-0051","Pascal Baumann","Basel"]]}},{"id":56,"description":"Gib die Personennummer, den Namen und die Telefonnummer der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Tellus teilgenommen haben!","display_sequence":"C","result":{"columns":["persnr","name","telefon"],"values":[["121017-0001","Marco Schmid","+41 77 678 90 12"],["121017-0003","Claire Steiner","+41 79 890 12 34"],["121017-0004","Giulia Brunner","+41 76 901 23 45"],["121017-0005","Thomas Dubois","+41 77 012 34 56"],["121017-0007","Monika Frei","+41 79 234 56 78"],["121017-0008","Andrea Huber","+41 76 345 67 89"],["121017-0009","Pascal Baumann","+41 77 456 78 90"],["121017-0010","Isabelle Haller","+41 78 567 89 01"],["131017-0051","Pascal Baumann","+41 78 901 23 45"]]}},{"id":57,"description":"Gib die Personennummer, den Namen und den Ort der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Sirius teilgenommen haben!","display_sequence":"D","result":{"columns":["persnr","name","ort"],"values":[["121017-0001","Marco Schmid","Winterthur"],["121017-0002","Peter Müller","Bern"],["121017-0003","Claire Steiner","Winterthur"],["121017-0004","Giulia Brunner","Bern"],["121017-0006","Daniel Rochat","Bern"],["121017-0007","Monika Frei","Bern"],["121017-0010","Isabelle Haller","Luzern"],["121018-0040","Chiara Weber","Zürich"],["121117-0041","Pascal Conti","Zürich"],["131017-0052","Thomas Dubois","Basel"]]}},{"id":58,"description":"Gib den Namen, Strasse, den Ort und die Telefonnummer der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Jupiter teilgenommen haben!","display_sequence":"E","result":{"columns":["name","strasse","ort","telefon"],"values":[["Andrea Huber","St. Jakobstrasse 112","Rapperswil","+41 76 345 67 89"],["Chiara Weber","Industriestrasse 44","Zürich","+41 79 678 90 12"],["Claire Steiner","Kirchgasse 4","Winterthur","+41 79 890 12 34"],["Daniel Rochat","Eichtalstrasse 2","Bern","+41 78 123 45 67"],["Giulia Brunner","Schulstrasse 1","Bern","+41 76 901 23 45"],["Marco Schmid","Dorfstrasse 63","Luzern","+41 78 250 28 55"],["Pascal Baumann","Birkenweg 12","Basel","+41 78 901 23 45"],["Pascal Conti","Rosengartenstrasse 15b","Zürich","+41 76 789 01 23"],["Peter Müller","Alte Landstrasse 3","Bern","+41 78 789 01 23"],["Thomas Dubois","Birkenweg 3","Basel","+41 77 012 34 56"]]}},{"id":59,"description":"Gib den Namen, Strasse, die Postleitzahl und den Ort der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Orion teilgenommen haben!","display_sequence":"F","result":{"columns":["name","strasse","plz","ort"],"values":[["Andrea Huber","St. Jakobstrasse 112","8640","Rapperswil"],["Daniel Rochat","Eichtalstrasse 2","3007","Bern"],["Isabelle Haller","Lillgatan 3","6003","Luzern"],["Jean Richter","Abendrain 4","4051","Basel"],["Monika Frei","Eichtalstrasse 24","3006","Bern"],["Pascal Baumann","Auenweg 5","4051","Basel"],["Pascal Baumann","Birkenweg 12","4051","Basel"],["Peter Müller","Alte Landstrasse 3","3006","Bern"],["Thomas Dubois","Birkenweg 3","4051","Basel"]]}},{"id":60,"description":"Gib den Namen, Strasse, den Ort und die Telefonnummer der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Tellus teilgenommen haben!","display_sequence":"G","result":{"columns":["name","strasse","ort","telefon"],"values":[["Andrea Huber","St. Jakobstrasse 112","Rapperswil","+41 76 345 67 89"],["Claire Steiner","Kirchgasse 4","Winterthur","+41 79 890 12 34"],["Giulia Brunner","Schulstrasse 1","Bern","+41 76 901 23 45"],["Isabelle Haller","Lillgatan 3","Luzern","+41 78 567 89 01"],["Marco Schmid","Burgstrasse 6","Winterthur","+41 77 678 90 12"],["Monika Frei","Eichtalstrasse 24","Bern","+41 79 234 56 78"],["Pascal Baumann","Auenweg 5","Basel","+41 77 456 78 90"],["Pascal Baumann","Birkenweg 12","Basel","+41 78 901 23 45"],["Thomas Dubois","Birkenweg 3","Basel","+41 77 012 34 56"]]}},{"id":61,"description":"Gib den Namen, Strasse, die Postleitzahl und den Ort der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Sirius teilgenommen haben!","display_sequence":"H","result":{"columns":["name","strasse","plz","ort"],"values":[["Chiara Weber","Industriestrasse 44","8001","Zürich"],["Claire Steiner","Kirchgasse 4","8404","Winterthur"],["Daniel Rochat","Eichtalstrasse 2","3007","Bern"],["Giulia Brunner","Schulstrasse 1","3004","Bern"],["Isabelle Haller","Lillgatan 3","6003","Luzern"],["Marco Schmid","Burgstrasse 6","8401","Winterthur"],["Monika Frei","Eichtalstrasse 24","3006","Bern"],["Pascal Conti","Rosengartenstrasse 15b","8002","Zürich"],["Peter Müller","Alte Landstrasse 3","3006","Bern"],["Thomas Dubois","Birkenweg 1","4051","Basel"]]}}]},{"category_id":8,"display_number":8,"questions":[{"id":62,"description":"Gib die Anzahl der Kursdurchführungen aus, an denen jeder Student teilgenommen hat! Zeige die Personennummer des Studierenden, den Namen des Studierenden und die Anzahl!","display_sequence":"A","result":{"columns":["persnr","name","count"],"values":[["121017-0006","Daniel Rochat",6],["121017-0003","Claire Steiner",5],["121117-0041","Pascal Conti",3],["131017-0053","Marco Schmid",1],["121017-0004","Giulia Brunner",4],["131017-0051","Pascal Baumann",3],["121017-0002","Peter Müller",4],["121017-0001","Marco Schmid",4],["121017-0008","Andrea Huber",6],["121018-0040","Chiara Weber",3],["121017-0009","Pascal Baumann",3],["121017-0010","Isabelle Haller",5],["121017-0005","Thomas Dubois",5],["131017-0052","Thomas Dubois",1],["111017-0001","Lukas Meier",0],["121017-0007","Monika Frei",4],["131017-0050","Jean Richter",1]]},"alternative_results":[{"columns":["persnr","name","count"],"values":[["121017-0006","Daniel Rochat",6],["121017-0003","Claire Steiner",5],["121117-0041","Pascal Conti",3],["131017-0053","Marco Schmid",1],["121017-0004","Giulia Brunner",4],["131017-0051","Pascal Baumann",3],["121017-0002","Peter Müller",4],["121017-0001","Marco Schmid",4],["121017-0008","Andrea Huber",6],["121018-0040","Chiara Weber",3],["121017-0009","Pascal Baumann",3],["121017-0010","Isabelle Haller",5],["121017-0005","Thomas Dubois",5],["131017-0052","Thomas Dubois",1],["121017-0007","Monika Frei",4],["131017-0050","Jean Richter",1]]}]},{"id":63,"description":"Gib die Anzahl der Kursdurchführungen aus, für die jeder Seminarraum verwendet wurde! Zeige den Namen des Seminarraums, die Kapazität des Seminarraums und die Anzahl!","display_sequence":"B","result":{"columns":["name","anzahlplaetze","count"],"values":[["Orion",24,3],["Sirius",16,4],["Saturnus",24,3],["Tellus",32,3],["Jupiter",12,6]]},"alternative_results":[{"columns":["name","anzahlplaetze","count"],"values":[["Tellus",32,3],["Orion",24,3],["Sirius",16,4],["Saturnus",24,3],["Jupiter",12,6]]}]},{"id":64,"description":"Gib die Anzahl der Kursdurchführungen aus, die jedes Modul hatte! Zeige das Kürzel des Moduls, den Namen des Moduls und die Anzahl!","display_sequence":"C","result":{"columns":["kuerzel","name","count"],"values":[["Java2","Java-Fortsetzungskurs",3],["DBM1","Datenbankmanagement 1",4],["Log1","Logik",3],["PDBD","Physisches Datenbank-Design",1],["LDBD","Logisches Datenbank-Design",3],["Java1","Java-Grundkurs",5]]},"alternative_results":[{"columns":["kuerzel","name","count"],"values":[["Java2","Java-Fortsetzungskurs",3],["DBM1","Datenbankmanagement 1",4],["Log1","Logik",3],["PDBD","Physisches Datenbank-Design",1],["LDBD","Logisches Datenbank-Design",3],["Java1","Java-Grundkurs",5]]}]},{"id":65,"description":"Gib die Anzahl der Kursdurchführungen aus, die jeder Dozent gehalten hat! Zeige die Personennummer des Dozenten, den Namen des Dozenten und die Anzahl!","display_sequence":"D","result":{"columns":["persnr","name","count"],"values":[["111017-0005","Anna Bianchi",4],["111017-0002","Marco Rossi",6],["111017-0003","Jean Dupont",3],["111017-0004","Sophie Keller",4],["111017-0001","Lukas Meier",0],["131017-0050","Jean Richter",2]]},"alternative_results":[{"columns":["persnr","name","count"],"values":[["111017-0005","Anna Bianchi",4],["111017-0002","Marco Rossi",6],["111017-0003","Jean Dupont",3],["111017-0004","Sophie Keller",4],["131017-0050","Jean Richter",2]]}]},{"id":66,"description":"Gib die Anzahl der teilnehmenden Studierenden für jede Kursdurchführung aus! Zeige Modulkürzel und Modulname der Kursdurchführung, Startdatum der Kursdurchführung und die Anzahl!","display_sequence":"E","result":{"columns":["modulkuerzel","name","startdatum","count"],"values":[["DBM1","Datenbankmanagement 1","2010-09-22",4],["LDBD","Logisches Datenbank-Design","2008-09-02",3],["Java2","Java-Fortsetzungskurs","2010-04-11",4],["Java1","Java-Grundkurs","2010-05-01",3],["Java1","Java-Grundkurs","2008-03-06",6],["LDBD","Logisches Datenbank-Design","2010-09-24",3],["Java1","Java-Grundkurs","2008-05-06",2],["DBM1","Datenbankmanagement 1","2008-04-02",4],["LDBD","Logisches Datenbank-Design","2008-05-06",2],["Java2","Java-Fortsetzungskurs","2009-01-22",4],["PDBD","Physisches Datenbank-Design","2008-05-09",3],["Log1","Logik","2008-04-16",2],["Java1","Java-Grundkurs","2008-09-02",2],["DBM1","Datenbankmanagement 1","2010-02-15",3],["Java1","Java-Grundkurs","2011-05-01",0],["Log1","Logik","2010-05-01",4],["DBM1","Datenbankmanagement 1","2009-01-28",3],["Log1","Logik","2009-09-17",2],["Java2","Java-Fortsetzungskurs","2008-04-16",4]]},"alternative_results":[{"columns":["modulkuerzel","name","startdatum","count"],"values":[["DBM1","Datenbankmanagement 1","2010-09-22",4],["LDBD","Logisches Datenbank-Design","2008-09-02",3],["Java2","Java-Fortsetzungskurs","2010-04-11",4],["Java1","Java-Grundkurs","2010-05-01",3],["Java1","Java-Grundkurs","2008-03-06",6],["LDBD","Logisches Datenbank-Design","2010-09-24",3],["Java1","Java-Grundkurs","2008-05-06",2],["DBM1","Datenbankmanagement 1","2008-04-02",4],["LDBD","Logisches Datenbank-Design","2008-05-06",2],["Java2","Java-Fortsetzungskurs","2009-01-22",4],["PDBD","Physisches Datenbank-Design","2008-05-09",3],["Log1","Logik","2008-04-16",2],["Java1","Java-Grundkurs","2008-09-02",2],["DBM1","Datenbankmanagement 1","2010-02-15",3],["Log1","Logik","2010-05-01",4],["DBM1","Datenbankmanagement 1","2009-01-28",3],["Log1","Logik","2009-09-17",2],["Java2","Java-Fortsetzungskurs","2008-04-16",4]]}]}]},{"category_id":9,"display_number":9,"questions":[{"id":67,"description":"I. Erstelle eine Sicht, die Personalnummer, den Namen und die Telefonnummer sowie die Anzahl der Kursdurchführungen anzeigt, die jeder Dozent gehalten hat! II. Gib dann die Personalnummer, den Namen und die Telefonnummer des Dozenten aus, der die meisten Kursdurchführungen gehalten hat!","display_sequence":"A","result":{"columns":["persnr","name","telefon"],"values":[["111017-0002","Marco Rossi","+41 77 234 56 78"]]}},{"id":68,"description":"I. Erstelle eine Sicht, die Personalnummer, den Namen und die Telefonnummer sowie die Anzahl der Kursdurchführungen anzeigt, die jeder Student besucht hat! II. Gib dann die Personalnummer, den Namen und die Telefonnummer der Studierenden aus, die die meisten Kursdurchführungen besucht haben!","display_sequence":"B","result":{"columns":["persnr","name","telefon"],"values":[["121017-0006","Daniel Rochat","+41 78 123 45 67"],["121017-0008","Andrea Huber","+41 76 345 67 89"]]}},{"id":69,"description":"I. Erstelle eine Sicht, die den Kurscode, den Namen, die Dauer und die Anzahl der Kursdurchführung pro Kurs anzeigt! II. Gib dann die Kurscode, den Namen und die Dauer des Kurses mit den meisten Unterrichtseinheiten aus!","display_sequence":"C","result":{"columns":["kuerzel","name","kurstage"],"values":[["Java1","Java-Grundkurs",5]]}},{"id":70,"description":"I. Erstelle eine Sicht, die das Modulkürzel, den Namen, die Anzahl Kurstage sowie die Anzahl der Kursdurchführungen pro Modul anzeigt! II. Gib dann den Namen und die Kapazität des Raums aus, in dem die meisten Kursdurchführungen stattgefunden haben!","display_sequence":"D","result":{"columns":["name","anzahlplaetze"],"values":[["Jupiter",12]]}},{"id":71,"description":"I. Erstelle eine Sicht, die den Kurscode, den Kursnamen und das Startdatum sowie die Teilnehmerzahl pro Kursdurchführung anzeigt! II. Gib dann den Kurscode, den Kursnamen und das Startdatum des Kurstermins mit den meisten Teilnehmern aus!","display_sequence":"E","result":{"columns":["modulkuerzel","name","startdatum"],"values":[["Java1","Java-Grundkurs","2008-03-06"]]}}]},{"category_id":10,"display_number":10,"questions":[{"id":72,"description":"Gib die Personennummer, den Namen und den Ort der Studierenden aus, die an mindestens drei VERSCHIEDENEN Modulen teilgenommen haben!","display_sequence":"A","result":{"columns":["persnr","name","ort"],"values":[["121017-0001","Marco Schmid","Winterthur"],["121017-0002","Peter Müller","Bern"],["121017-0003","Claire Steiner","Winterthur"],["121017-0004","Giulia Brunner","Bern"],["121017-0005","Thomas Dubois","Basel"],["121017-0006","Daniel Rochat","Bern"],["121017-0007","Monika Frei","Bern"],["121017-0008","Andrea Huber","Rapperswil"],["121017-0010","Isabelle Haller","Luzern"],["121018-0040","Chiara Weber","Zürich"],["121117-0041","Pascal Conti","Zürich"],["131017-0051","Pascal Baumann","Basel"]]}},{"id":73,"description":"Gib die Personennummer, den Namen und die Telefonnummer der Dozierenden aus, die mindestens drei VERSCHIEDENE Module gehalten haben!","display_sequence":"B","result":{"columns":["persnr","name","telefon"],"values":[["111017-0002","Marco Rossi","+41 77 234 56 78"],["111017-0004","Sophie Keller","+41 79 456 78 90"],["111017-0005","Anna Bianchi","+41 76 567 89 01"]]}},{"id":74,"description":"Gib die Personennummer, den Namen und den Ort der Dozierenden aus, die Kursdurchführungen in mindestens drei VERSCHIEDENEN Seminarräumen gehalten haben!","display_sequence":"C","result":{"columns":["persnr","name","ort"],"values":[["111017-0002","Marco Rossi","St. Gallen"],["111017-0003","Jean Dupont","Zürich"],["111017-0004","Sophie Keller","Luzern"]]}},{"id":75,"description":"Gib Namen und Kapazität der Seminarräume aus, die von mindestens drei VERSCHIEDENEN Dozenten verwendet wurden!","display_sequence":"D","result":{"columns":["name","anzahlplaetze"],"values":[["Jupiter",12],["Sirius",16],["Tellus",32],["Saturnus",24]]}},{"id":76,"description":"Gib Namen und Kapazität der Seminarräume aus, die für Kursdurchführungen von mindestens drei VERSCHIEDENEN Modulen verwendet wurden!","display_sequence":"E","result":{"columns":["name","anzahlplaetze"],"values":[["Jupiter",12]]}},{"id":77,"description":"Gib Code, Namen und Preis der Module aus, die in mindestens drei VERSCHIEDENEN Seminarräumen gehalten wurden!","display_sequence":"F","result":{"columns":["kuerzel","name","preis"],"values":[["Java1","Java-Grundkurs",6700],["LDBD","Logisches Datenbank-Design",6000]]}},{"id":78,"description":"Gib Code, Namen und Preis der Module aus, die von mindestens drei VERSCHIEDENEN Dozenten gehalten wurden!","display_sequence":"G","result":{"columns":["kuerzel","name","preis"],"values":[["DBM1","Datenbankmanagement 1",2800],["Log1","Logik",4500]]}}]},{"category_id":11,"display_number":11,"questions":[{"id":79,"description":"Gib Namen und Ort der Personen aus, die keine Dozenten sind!","display_sequence":"A","result":{"columns":["name","ort"],"values":[["Marco Schmid","Winterthur"],["Peter Müller","Bern"],["Claire Steiner","Winterthur"],["Giulia Brunner","Bern"],["Thomas Dubois","Basel"],["Daniel Rochat","Bern"],["Monika Frei","Bern"],["Andrea Huber","Rapperswil"],["Pascal Baumann","Basel"],["Isabelle Haller","Luzern"],["Chiara Weber","Zürich"],["Pascal Conti","Zürich"],["Pascal Baumann","Basel"],["Thomas Dubois","Basel"],["Marco Schmid","Luzern"],["Monika Huber","Basel"],["Andrea Haller","Zürich"],["Isabelle Conti","Winterthur"],["Daniel Brunner","Lugano"]]}},{"id":80,"description":"Gib Namen und Ort der Studierenden aus, die an keiner Kursdurchführung mit Startdatum im Jahr 2010 teilgenommen haben!","display_sequence":"B","result":{"columns":["name","ort"],"values":[["Lukas Meier","Lugano"],["Marco Schmid","Winterthur"],["Peter Müller","Bern"],["Pascal Baumann","Basel"],["Jean Richter","Basel"],["Pascal Baumann","Basel"]]}},{"id":81,"description":"Gib Namen und Ort der Studierenden aus, die das Modul mit dem Kürzel Java1 nicht besucht haben!","display_sequence":"C","result":{"columns":["name","ort"],"values":[["Lukas Meier","Lugano"],["Giulia Brunner","Bern"],["Thomas Dubois","Basel"],["Chiara Weber","Zürich"],["Pascal Conti","Zürich"],["Jean Richter","Basel"],["Thomas Dubois","Basel"],["Marco Schmid","Luzern"]]}},{"id":82,"description":"Gib Namen und Ort der Studierenden aus, die das Modul mit dem Kürzel Log1 nicht besucht haben!","display_sequence":"D","result":{"columns":["name","ort"],"values":[["Lukas Meier","Lugano"],["Marco Schmid","Winterthur"],["Peter Müller","Bern"],["Claire Steiner","Winterthur"],["Daniel Rochat","Bern"],["Monika Frei","Bern"],["Pascal Baumann","Basel"],["Isabelle Haller","Luzern"],["Jean Richter","Basel"],["Pascal Baumann","Basel"],["Thomas Dubois","Basel"]]}}]},{"category_id":12,"display_number":12,"questions":[{"id":83,"description":"Gib Personennummer, Namen, Büro und Telefonnummer der Dozierenden aus, die niemals eine Kursdurchführung für das Modul \"Java-Fortsetzungskurs\" gehalten haben!","display_sequence":"A","result":{"columns":["persnr","name","bueronr","telefon"],"values":[["111017-0001","Lukas Meier",634,"+41 76 123 45 67"],["111017-0003","Jean Dupont",603,"+41 78 345 67 89"],["111017-0004","Sophie Keller",605,"+41 79 456 78 90"],["111017-0005","Anna Bianchi",622,"+41 76 567 89 01"]]}},{"id":84,"description":"Gib Personennummer, Namen und Ort der Studierenden mit Nachteilsausgleich aus, die das Modul \"Logisches Datenbank-Design\" nicht besucht haben!","display_sequence":"B","result":{"columns":["persnr","name","ort"],"values":[["121017-0002","Peter Müller","Bern"],["121017-0010","Isabelle Haller","Luzern"],["131017-0052","Thomas Dubois","Basel"]]}},{"id":85,"description":"Gib Namen und Kapazität der Seminarräume aus, die niemals für eine Kursdurchführung des Moduls \"Logisches Datenbank-Design\" verwendet wurden!","display_sequence":"C","result":{"columns":["name","anzahlplaetze"],"values":[["Jupiter",12],["Tellus",32]]}},{"id":86,"description":"Gib Namen und Kapazität des Seminarraumes aus, der niemals vom Dozenten Marco Rossi verwendet wurden!","display_sequence":"D","result":{"columns":["name","anzahlplaetze"],"values":[["Sirius",16]]}}]},{"category_id":13,"display_number":13,"questions":[{"id":87,"description":"Gib Personennummer, Namen und Telefonnummer der Studierenden aus, die das Modul \"Physisches Datenbank-Design\" oder das Modul \"Logisches Datenbank-Design\" (oder beide) besucht haben!","display_sequence":"A","result":{"columns":["persnr","name","telefon"],"values":[["121017-0001","Marco Schmid","+41 77 678 90 12"],["121017-0003","Claire Steiner","+41 79 890 12 34"],["121017-0006","Daniel Rochat","+41 78 123 45 67"],["121017-0007","Monika Frei","+41 79 234 56 78"],["121017-0008","Andrea Huber","+41 76 345 67 89"],["121018-0040","Chiara Weber","+41 79 678 90 12"],["121117-0041","Pascal Conti","+41 76 789 01 23"],["131017-0050","Jean Richter","+41 77 890 12 33"]]}},{"id":88,"description":"Gib Personennummer, Namen und Ort der Studierenden aus, die an Kursdurchführungen im Seminarraum Orion oder im Seminarraum Jupiter (oder in beiden) teilgenommen haben!","display_sequence":"B","result":{"columns":["persnr","name","ort"],"values":[["121017-0002","Peter Müller","Bern"],["121017-0003","Claire Steiner","Winterthur"],["121017-0004","Giulia Brunner","Bern"],["121017-0005","Thomas Dubois","Basel"],["121017-0006","Daniel Rochat","Bern"],["121017-0007","Monika Frei","Bern"],["121017-0008","Andrea Huber","Rapperswil"],["121017-0009","Pascal Baumann","Basel"],["121017-0010","Isabelle Haller","Luzern"],["121018-0040","Chiara Weber","Zürich"],["121117-0041","Pascal Conti","Zürich"],["131017-0050","Jean Richter","Basel"],["131017-0051","Pascal Baumann","Basel"],["131017-0053","Marco Schmid","Luzern"]]}},{"id":89,"description":"Gib Personennummer, Namen und Telefonnummer der Dozierenden aus, die das Modul \"Logik\" oder das Modul \"Datenbankmanagement 1\" (oder beide) gehalten haben!","display_sequence":"C","result":{"columns":["persnr","name","telefon"],"values":[["111017-0002","Marco Rossi","+41 77 234 56 78"],["111017-0003","Jean Dupont","+41 78 345 67 89"],["111017-0004","Sophie Keller","+41 79 456 78 90"],["111017-0005","Anna Bianchi","+41 76 567 89 01"],["131017-0050","Jean Richter","+41 77 890 12 33"]]}},{"id":90,"description":"Gib Namen und Kapazität der Seminarräume aus, die vom Dozenten Marco Rossi oder vom Dozenten Jean Dupont (oder von beiden) verwendet wurden!","display_sequence":"D","result":{"columns":["name","anzahlplaetze"],"values":[["Jupiter",12],["Orion",24],["Saturnus",24],["Tellus",32]]}},{"id":91,"description":"Gib Namen und Kapazität der Seminarräume aus, die für das Modul \"Logik\" oder für das Modul \"Java-Fortsetzungskurs\" (oder für beide) verwendet wurden!","display_sequence":"E","result":{"columns":["name","anzahlplaetze"],"values":[["Jupiter",12],["Orion",24],["Tellus",32]]}}]},{"category_id":14,"display_number":14,"questions":[{"id":92,"description":"Gib Personennummer, Namen und Ort der Studierenden aus, die sowohl das Modul \"Physisches Datenbank-Design\" als auch das Modul \"Logisches Datenbank-Design\" besucht haben!","display_sequence":"A","result":{"columns":["persnr","name","ort"],"values":[["121017-0008","Andrea Huber","Rapperswil"],["121017-0006","Daniel Rochat","Bern"]]}},{"id":93,"description":"Gib Personennummer, Namen und Telefonnummer der Studierenden aus, die an Kursdurchführungen sowohl im Seminarraum Orion als auch im Seminarraum Jupiter teilgenommen haben!","display_sequence":"B","result":{"columns":["persnr","name","telefon"],"values":[["121017-0005","Thomas Dubois","+41 77 012 34 56"],["131017-0051","Pascal Baumann","+41 78 901 23 45"],["121017-0008","Andrea Huber","+41 76 345 67 89"],["121017-0006","Daniel Rochat","+41 78 123 45 67"],["121017-0002","Peter Müller","+41 78 789 01 23"]]}},{"id":94,"description":"Gib Personennummer, Namen und Büro der Dozierenden aus, die sowohl das Modul \"Logisches Datenbank-Design\" als auch das Modul \"Datenbankmanagement 1\" gehalten haben!","display_sequence":"C","result":{"columns":["persnr","name","bueronr"],"values":[["111017-0005","Anna Bianchi",622],["111017-0004","Sophie Keller",605]]}},{"id":95,"description":"Gib Namen und Kapazität der Seminarräume aus, die sowohl vom Dozenten Sophie Keller als auch vom Dozenten Marco Rossi verwendet wurden!","display_sequence":"D","result":{"columns":["name","anzahlplaetze"],"values":[["Orion",24],["Saturnus",24],["Jupiter",12]]}},{"id":96,"description":"Gib Namen und Kapazität der Seminarräume aus, die sowohl für das Modul \"Logik\" als auch für das Modul \"Java-Grundkurs\" verwendet wurden!","display_sequence":"E","result":{"columns":["name","anzahlplaetze"],"values":[["Jupiter",12]]}},{"id":97,"description":"Gib Personennummer, Namen, Büro und Telefonnummer der Dozierenden aus, die Kursdurchführungen sowohl im Seminarraum Jupiter als auch im Seminarraum Sirius gehalten haben!","display_sequence":"F","result":{"columns":["persnr","name","bueronr","telefon"],"values":[["111017-0004","Sophie Keller",605,"+41 79 456 78 90"],["111017-0005","Anna Bianchi",622,"+41 76 567 89 01"]]}}]},{"category_id":15,"display_number":15,"questions":[{"id":98,"description":"Gib Personennummer, Namen und Telefonnummer der Studierenden aus, die Kurse bei allen Lehrkräften aus Zürich besucht haben!","display_sequence":"A","result":{"columns":["persnr","name","telefon"],"values":[["121017-0001","Marco Schmid","+41 77 678 90 12"],["121017-0004","Giulia Brunner","+41 76 901 23 45"],["121017-0005","Thomas Dubois","+41 77 012 34 56"],["121017-0007","Monika Frei","+41 79 234 56 78"]]}},{"id":99,"description":"Gib Namen und Kapazität der Seminarräume aus, die von sämtlichen Dozenten aus Zürich verwendet wurden!","display_sequence":"B","result":{"columns":["name","anzahlplaetze"],"values":[["Jupiter",12]]}},{"id":100,"description":"Gib Namen und Kapazität der Seminarräume aus, die für sämtliche Module verwendet wurden, die weniger als CHF 5000 kosten!","display_sequence":"C","result":{"columns":["name","anzahlplaetze"],"values":[["Jupiter",12]]}},{"id":101,"description":"Gib Personennummer, Namen und Telefonnummer der Dozierenden aus, die Kursdurchführungen sämtlicher Module mit höchstens drei Kurstagen Dauer gehalten haben!","display_sequence":"D","result":{"columns":["persnr","name","telefon"],"values":[["111017-0005","Anna Bianchi","+41 76 567 89 01"]]}}]},{"category_id":16,"display_number":16,"questions":[{"id":102,"description":"Gib für jede Kursdurchführung die Anzahl der Studierenden aus Bern aus! Zeige Modulkürzel, Startdatum und Anzahl der Studierenden. Auch Kursdurchführungen ohne Studierende aus Bern sollen im Ergebnis enthalten sein (mit 0 in der Anzahlspalte)!","display_sequence":"A","result":{"columns":["modulkuerzel","startdatum","count"],"values":[["Java1","2008-03-06",0],["LDBD","2010-09-24",0],["PDBD","2008-05-09",1],["LDBD","2008-09-02",1],["Java1","2008-05-06",2],["Log1","2009-09-17",1],["Java2","2010-04-11",2],["DBM1","2008-04-02",1],["Java2","2008-04-16",3],["LDBD","2008-05-06",1],["Log1","2010-05-01",0],["Java1","2010-05-01",2],["DBM1","2010-09-22",1],["DBM1","2009-01-28",0],["Java2","2009-01-22",1],["Java1","2011-05-01",0],["Log1","2008-04-16",1],["Java1","2008-09-02",0],["DBM1","2010-02-15",1]]}},{"id":103,"description":"Gib die Anzahl der Male aus, die jeder Student am Modul \"Logisches Datenbank-Design\" teilgenommen hat! Zeige die Personennummer, den Namen und den Ort des Studierenden sowie die Anzahl!","display_sequence":"B","result":{"columns":["persnr","name","ort","count"],"values":[["121017-0006","Daniel Rochat","Bern",1],["121017-0003","Claire Steiner","Winterthur",0],["121117-0041","Pascal Conti","Zürich",1],["131017-0053","Marco Schmid","Luzern",0],["121017-0004","Giulia Brunner","Bern",0],["131017-0051","Pascal Baumann","Basel",0],["121017-0002","Peter Müller","Bern",0],["121017-0001","Marco Schmid","Winterthur",1],["121017-0008","Andrea Huber","Rapperswil",2],["121018-0040","Chiara Weber","Zürich",1],["121017-0009","Pascal Baumann","Basel",0],["121017-0010","Isabelle Haller","Luzern",0],["121017-0005","Thomas Dubois","Basel",0],["131017-0052","Thomas Dubois","Basel",0],["111017-0001","Lukas Meier","Lugano",0],["121017-0007","Monika Frei","Bern",1],["131017-0050","Jean Richter","Basel",1]]}},{"id":104,"description":"Gib die Anzahl der Male aus, die jeder Student am Modul \"Java-Grundkurs\" teilgenommen hat! Zeige die Personennummer, den Namen und den Ort des Studierenden sowie die Anzahl!","display_sequence":"C","result":{"columns":["persnr","name","ort","count"],"values":[["121017-0006","Daniel Rochat","Bern",2],["121017-0003","Claire Steiner","Winterthur",1],["121117-0041","Pascal Conti","Zürich",0],["131017-0053","Marco Schmid","Luzern",0],["121017-0004","Giulia Brunner","Bern",0],["131017-0051","Pascal Baumann","Basel",1],["121017-0002","Peter Müller","Bern",1],["121017-0001","Marco Schmid","Winterthur",2],["121017-0008","Andrea Huber","Rapperswil",2],["121018-0040","Chiara Weber","Zürich",0],["121017-0009","Pascal Baumann","Basel",2],["121017-0010","Isabelle Haller","Luzern",1],["121017-0005","Thomas Dubois","Basel",0],["131017-0052","Thomas Dubois","Basel",0],["111017-0001","Lukas Meier","Lugano",0],["121017-0007","Monika Frei","Bern",1],["131017-0050","Jean Richter","Basel",0]]}},{"id":105,"description":"Gib die Anzahl der Male aus, die jeder Dozent das Modul \"Java-Grundkurs\" gehalten hat! Zeige die Personennummer, den Namen, die Telefonnummer und das Büro des Dozenten sowie die Anzahll!","display_sequence":"D","result":{"columns":["persnr","name","telefon","bueronr","count"],"values":[["131017-0050","Jean Richter","+41 77 890 12 33",558,0],["111017-0003","Jean Dupont","+41 78 345 67 89",603,2],["111017-0001","Lukas Meier","+41 76 123 45 67",634,0],["111017-0002","Marco Rossi","+41 77 234 56 78",604,3],["111017-0005","Anna Bianchi","+41 76 567 89 01",622,0],["111017-0004","Sophie Keller","+41 79 456 78 90",605,0]]}},{"id":106,"description":"Gib die Anzahl der Kursdurchführungen aus, die jeder Dozent mit Start im Jahr 2010 gehalten hat! Zeige die Personennummer, den Namen, die Telefonnummer und das Büro des Dozenten sowie die Anzahl!","display_sequence":"E","result":{"columns":["persnr","name","telefon","bueronr","count"],"values":[["131017-0050","Jean Richter","+41 77 890 12 33",558,2],["111017-0003","Jean Dupont","+41 78 345 67 89",603,1],["111017-0001","Lukas Meier","+41 76 123 45 67",634,0],["111017-0002","Marco Rossi","+41 77 234 56 78",604,1],["111017-0005","Anna Bianchi","+41 76 567 89 01",622,0],["111017-0004","Sophie Keller","+41 79 456 78 90",605,2]]}},{"id":107,"description":"Gib für jeden Student die Anzahl der Kursdurchführungen mit Start im Jahr 2008 aus! Zeige die Personennummer, den Namen, die Telefonnummer und den Ort des Studierenden sowie die Anzahl!","display_sequence":"F","result":{"columns":["persnr","name","telefon","ort","count"],"values":[["121017-0006","Daniel Rochat","+41 78 123 45 67","Bern",4],["121017-0003","Claire Steiner","+41 79 890 12 34","Winterthur",3],["121117-0041","Pascal Conti","+41 76 789 01 23","Zürich",0],["131017-0053","Marco Schmid","+41 78 250 28 55","Luzern",0],["121017-0004","Giulia Brunner","+41 76 901 23 45","Bern",1],["131017-0051","Pascal Baumann","+41 78 901 23 45","Basel",1],["121017-0002","Peter Müller","+41 78 789 01 23","Bern",3],["121017-0001","Marco Schmid","+41 77 678 90 12","Winterthur",4],["121017-0008","Andrea Huber","+41 76 345 67 89","Rapperswil",3],["121018-0040","Chiara Weber","+41 79 678 90 12","Zürich",0],["121017-0009","Pascal Baumann","+41 77 456 78 90","Basel",2],["121017-0010","Isabelle Haller","+41 78 567 89 01","Luzern",2],["121017-0005","Thomas Dubois","+41 77 012 34 56","Basel",2],["131017-0052","Thomas Dubois","+41 79 012 34 56","Basel",0],["111017-0001","Lukas Meier","+41 76 123 45 67","Lugano",0],["121017-0007","Monika Frei","+41 79 234 56 78","Bern",2],["131017-0050","Jean Richter","+41 77 890 12 33","Basel",1]]}}]},{"category_id":17,"display_number":17,"questions":[{"id":108,"description":"Gib Informationen über Kursdurchführungen aus, an denen kein Student aus Basel teilgenommen hat! Zeige Modulkürzel, Modulname, Startdatum, Namen des Seminarraums und Namen des Dozenten!","display_sequence":"A","result":{"columns":["modulkuerzel","name","startdatum","name","name"],"values":[["DBM1","Datenbankmanagement 1","2008-04-02","Sirius","Anna Bianchi"],["Java1","Java-Grundkurs","2008-05-06","Jupiter","Marco Rossi"],["LDBD","Logisches Datenbank-Design","2008-05-06","Sirius","Anna Bianchi"],["PDBD","Physisches Datenbank-Design","2008-05-09","Jupiter","Sophie Keller"],["Log1","Logik","2009-09-17","Jupiter","Anna Bianchi"],["DBM1","Datenbankmanagement 1","2010-02-15","Sirius","Sophie Keller"],["Java1","Java-Grundkurs","2010-05-01","Saturnus","Jean Dupont"],["LDBD","Logisches Datenbank-Design","2010-09-24","Saturnus","Sophie Keller"],["Java1","Java-Grundkurs","2011-05-01","Saturnus","Marco Rossi"]]}},{"id":109,"description":"Gib Informationen über Kursdurchführungen aus, an denen kein Student aus Bern teilgenommen hat! Zeige Modulkürzel, Modulname, Startdatum, Namen des Seminarraums und Namen des Dozenten!","display_sequence":"B","result":{"columns":["modulkuerzel","name","startdatum","name","name"],"values":[["Java1","Java-Grundkurs","2008-03-06","Tellus","Marco Rossi"],["Java1","Java-Grundkurs","2008-09-02","Tellus","Jean Dupont"],["DBM1","Datenbankmanagement 1","2009-01-28","Jupiter","Anna Bianchi"],["Log1","Logik","2010-05-01","Jupiter","Marco Rossi"],["LDBD","Logisches Datenbank-Design","2010-09-24","Saturnus","Sophie Keller"],["Java1","Java-Grundkurs","2011-05-01","Saturnus","Marco Rossi"]]}},{"id":110,"description":"Gib Informationen über Kursdurchführungen aus, an denen kein Student mit Nachteilsausgleich teilgenommen hat! Zeige Modulkürzel, Modulname, Startdatum, Namen des Seminarraums und Namen des Dozenten!","display_sequence":"C","result":{"columns":["modulkuerzel","name","startdatum","name","name"],"values":[["Log1","Logik","2008-04-16","Jupiter","Jean Dupont"],["LDBD","Logisches Datenbank-Design","2008-05-06","Sirius","Anna Bianchi"],["Java1","Java-Grundkurs","2008-09-02","Tellus","Jean Dupont"],["DBM1","Datenbankmanagement 1","2009-01-28","Jupiter","Anna Bianchi"],["Log1","Logik","2010-05-01","Jupiter","Marco Rossi"],["Java1","Java-Grundkurs","2011-05-01","Saturnus","Marco Rossi"]]}}]}]} \ No newline at end of file diff --git a/public/languages/de/data.sqlite3 b/public/languages/de/data.sqlite3 index b2c3211..ecefbd8 100644 Binary files a/public/languages/de/data.sqlite3 and b/public/languages/de/data.sqlite3 differ diff --git a/public/languages/de/questionpool.json b/public/languages/de/questionpool.json index fa602a2..1450b44 100644 --- a/public/languages/de/questionpool.json +++ b/public/languages/de/questionpool.json @@ -1 +1 @@ -{"language":"de","defaultQuery":"SELECT * FROM Student;","questions":[{"category_id":1,"display_number":1,"questions":[{"id":1,"description":"Gib die Personennummer, den Namen, die Strasse und die Postleitzahl der Personen aus, die in Basel wohnen!","display_sequence":"A","result":{"columns":["persNr","name","strasse","plz"],"values":[["121017-0005","Thomas Dubois","Birkenweg 3","4051"],["121017-0009","Pascal Baumann","Auenweg 5","4051"],["131017-0050","Jean Richter","Abendrain 4","4051"],["131017-0051","Pascal Baumann","Birkenweg 12","4051"],["131017-0052","Thomas Dubois","Birkenweg 1","4051"]]}},{"id":2,"description":"Gib die Personennummer, den Namen und die Telefonnummer der Personen aus, die in Basel wohnen!","display_sequence":"B","result":{"columns":["persNr","name","telefon"],"values":[["121017-0005","Thomas Dubois","+41 77 012 34 56"],["121017-0009","Pascal Baumann","+41 77 456 78 90"],["131017-0050","Jean Richter","+41 77 890 12 33"],["131017-0051","Pascal Baumann","+41 78 901 23 45"],["131017-0052","Thomas Dubois","+41 79 012 34 56"]]}},{"id":3,"description":"Gib die Personennummer, den Namen, die Strasse und die Postleitzahl der Personen aus, die in Bern wohnen!","display_sequence":"C","result":{"columns":["persNr","name","strasse","plz"],"values":[["121017-0002","Peter Müller","Alte Landstrasse 3","3006"],["121017-0004","Giulia Brunner","Schulstrasse 1","3004"],["121017-0006","Daniel Rochat","Eichtalstrasse 2","3007"],["121017-0007","Monika Frei","Eichtalstrasse 24","3006"]]}},{"id":4,"description":"Gib die Personennummer, den Namen und die Telefonnummer der Personen aus, die in Bern wohnen!","display_sequence":"D","result":{"columns":["persNr","name","telefon"],"values":[["121017-0002","Peter Müller","+41 78 789 01 23"],["121017-0004","Giulia Brunner","+41 76 901 23 45"],["121017-0006","Daniel Rochat","+41 78 123 45 67"],["121017-0007","Monika Frei","+41 79 234 56 78"]]}},{"id":5,"description":"Gib den Namen, die Strasse, die Postleitzahl und die Telefonnummer der Personen aus, die in Basel wohnen!","display_sequence":"E","result":{"columns":["name","strasse","plz","telefon"],"values":[["Thomas Dubois","Birkenweg 3","4051","+41 77 012 34 56"],["Pascal Baumann","Auenweg 5","4051","+41 77 456 78 90"],["Jean Richter","Abendrain 4","4051","+41 77 890 12 33"],["Pascal Baumann","Birkenweg 12","4051","+41 78 901 23 45"],["Thomas Dubois","Birkenweg 1","4051","+41 79 012 34 56"]]}},{"id":6,"description":"Gib den Namen, die Strasse, die Postleitzahl und die Telefonnummer der Personen aus, die in Bern wohnen!","display_sequence":"F","result":{"columns":["name","strasse","plz","telefon"],"values":[["Peter Müller","Alte Landstrasse 3","3006","+41 78 789 01 23"],["Giulia Brunner","Schulstrasse 1","3004","+41 76 901 23 45"],["Daniel Rochat","Eichtalstrasse 2","3007","+41 78 123 45 67"],["Monika Frei","Eichtalstrasse 24","3006","+41 79 234 56 78"]]}},{"id":7,"description":"Gib Modulkürzel, Namen und Preis der Module mit einer Dauer von 3 Kurstagen aus!","display_sequence":"G","result":{"columns":["kuerzel","name","preis"],"values":[["Log1","Logik",4500]]}},{"id":8,"description":"Gib Modulkürzel, Namen und Preis der Module mit einer Dauer von 4 Kurstage aus!","display_sequence":"H","result":{"columns":["kuerzel","name","preis"],"values":[["Java2","Java-Fortsetzungskurs",6000],["LDBD","Logisches Datenbank-Design",6000]]}}]},{"category_id":2,"display_number":2,"questions":[{"id":9,"description":"Gib die Personennummer, den Namen und den Ort der Personen aus, die in Bern oder in Basel wohnen!","display_sequence":"A","result":{"columns":["persNr","name","ort"],"values":[["121017-0002","Peter Müller","Bern"],["121017-0004","Giulia Brunner","Bern"],["121017-0005","Thomas Dubois","Basel"],["121017-0006","Daniel Rochat","Bern"],["121017-0007","Monika Frei","Bern"],["121017-0009","Pascal Baumann","Basel"],["131017-0050","Jean Richter","Basel"],["131017-0051","Pascal Baumann","Basel"],["131017-0052","Thomas Dubois","Basel"]]}},{"id":10,"description":"Gib die Personennummer, den Namen und die Telefonnummer der Personen aus, die in Basel oder in Winterthur wohnen!","display_sequence":"B","result":{"columns":["persNr","name","telefon"],"values":[["121017-0001","Marco Schmid","+41 77 678 90 12"],["121017-0003","Claire Steiner","+41 79 890 12 34"],["121017-0005","Thomas Dubois","+41 77 012 34 56"],["121017-0009","Pascal Baumann","+41 77 456 78 90"],["131017-0050","Jean Richter","+41 77 890 12 33"],["131017-0051","Pascal Baumann","+41 78 901 23 45"],["131017-0052","Thomas Dubois","+41 79 012 34 56"]]}},{"id":11,"description":"Gib die Personennummer, den Namen und den Ort der Personen aus, die in Bern oder in Luzern wohnen!","display_sequence":"C","result":{"columns":["persNr","name","ort"],"values":[["111017-0004","Sophie Keller","Luzern"],["121017-0002","Peter Müller","Bern"],["121017-0004","Giulia Brunner","Bern"],["121017-0006","Daniel Rochat","Bern"],["121017-0007","Monika Frei","Bern"],["121017-0010","Isabelle Haller","Luzern"],["131017-0053","Marco Schmid","Luzern"]]}},{"id":12,"description":"Gib die Personennummer, den Namen und die Telefonnummer der Personen aus, die in Bern oder in Winterthur wohnen!","display_sequence":"D","result":{"columns":["persNr","name","telefon"],"values":[["121017-0001","Marco Schmid","+41 77 678 90 12"],["121017-0002","Peter Müller","+41 78 789 01 23"],["121017-0003","Claire Steiner","+41 79 890 12 34"],["121017-0004","Giulia Brunner","+41 76 901 23 45"],["121017-0006","Daniel Rochat","+41 78 123 45 67"],["121017-0007","Monika Frei","+41 79 234 56 78"]]}},{"id":13,"description":"Gib den Namen, Strasse, die Postleitzahl und den Ort der Personen aus, die in Basel oder in Luzern wohnen!","display_sequence":"E","result":{"columns":["name","strasse","plz","ort"],"values":[["Sophie Keller","Dorfstrasse 4","6003","Luzern"],["Thomas Dubois","Birkenweg 3","4051","Basel"],["Pascal 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die Telefonnummer der Personen aus, die in Luzern oder in Winterthur wohnen!","display_sequence":"G","result":{"columns":["persNr","name","telefon"],"values":[["111017-0004","Sophie Keller","+41 79 456 78 90"],["121017-0001","Marco Schmid","+41 77 678 90 12"],["121017-0003","Claire Steiner","+41 79 890 12 34"],["121017-0010","Isabelle Haller","+41 78 567 89 01"],["131017-0053","Marco Schmid","+41 78 250 28 55"]]}},{"id":16,"description":"Gib die Personennummer, den Namen und den Ort der Personen aus, die in Basel oder in Luzern wohnen!","display_sequence":"H","result":{"columns":["persNr","name","ort"],"values":[["111017-0004","Sophie Keller","Luzern"],["121017-0005","Thomas Dubois","Basel"],["121017-0009","Pascal Baumann","Basel"],["121017-0010","Isabelle Haller","Luzern"],["131017-0050","Jean Richter","Basel"],["131017-0051","Pascal Baumann","Basel"],["131017-0052","Thomas Dubois","Basel"],["131017-0053","Marco Schmid","Luzern"]]}},{"id":17,"description":"Gib die Personennummer, den Namen und die Telefonnummer der Personen aus, die in Zürich oder in Luzern wohnen!","display_sequence":"I","result":{"columns":["persNr","name","telefon"],"values":[["111017-0003","Jean Dupont","+41 78 345 67 89"],["111017-0004","Sophie Keller","+41 79 456 78 90"],["111017-0005","Anna Bianchi","+41 76 567 89 01"],["121017-0010","Isabelle Haller","+41 78 567 89 01"],["121018-0040","Chiara Weber","+41 79 678 90 12"],["121117-0041","Pascal Conti","+41 76 789 01 23"],["131017-0053","Marco Schmid","+41 78 250 28 55"]]}},{"id":18,"description":"Gib den Namen, Strasse, die Postleitzahl und den Ort der Personen aus, die in Basel oder in Zürich wohnen!","display_sequence":"J","result":{"columns":["name","strasse","plz","ort"],"values":[["Jean Dupont","Bahnhofplatz 3","8001","Zürich"],["Anna Bianchi","Zollstrasse 5","8044","Zürich"],["Thomas Dubois","Birkenweg 3","4051","Basel"],["Pascal Baumann","Auenweg 5","4051","Basel"],["Chiara Weber","Industriestrasse 44","8001","Zürich"],["Pascal Conti","Rosengartenstrasse 15b","8002","Zürich"],["Jean Richter","Abendrain 4","4051","Basel"],["Pascal Baumann","Birkenweg 12","4051","Basel"],["Thomas Dubois","Birkenweg 1","4051","Basel"]]}},{"id":19,"description":"Gib Modulkürzel, Namen und Preis der Module mit einer Dauer von 3 oder 4 Kurstagen aus!","display_sequence":"K","result":{"columns":["kuerzel","name","preis"],"values":[["Java2","Java-Fortsetzungskurs",6000],["LDBD","Logisches Datenbank-Design",6000],["Log1","Logik",4500]]}}]},{"category_id":3,"display_number":3,"questions":[{"id":20,"description":"Gib die Personennummer der Dozierenden aus, die im Seminarraum mit der ID 1 unterrichtet haben!","display_sequence":"A","result":{"columns":["dozentNr"],"values":[["111017-0003"],["111017-0002"],["111017-0004"],["111017-0005"]]}},{"id":21,"description":"Gib die Personennummer der Dozierenden aus, die im Seminarraum mit der ID 2 unterrichtet haben!","display_sequence":"B","result":{"columns":["dozentNr"],"values":[["111017-0002"],["111017-0004"]]}},{"id":22,"description":"Gib die Personennummer der Dozierenden aus, die im Seminarraum mit der ID 3 unterrichtet haben!","display_sequence":"C","result":{"columns":["dozentNr"],"values":[["111017-0005"],["111017-0004"],["131017-0050"]]}},{"id":23,"description":"Gib die Personennummer der Dozierenden aus, die das Modul mit dem Kürzel Java1 unterrichtet haben!","display_sequence":"D","result":{"columns":["dozentNr"],"values":[["111017-0002"],["111017-0003"]]}},{"id":24,"description":"Gib die Personennummer der Dozierenden aus, die das Modul mit dem Kürzel Java2 unterrichtet haben!","display_sequence":"E","result":{"columns":["dozentNr"],"values":[["111017-0002"],["131017-0050"]]}},{"id":25,"description":"Gib die Personennummer der Dozierenden aus, die das Modul mit dem Kürzel DBM1 unterrichtet haben!","display_sequence":"F","result":{"columns":["dozentNr"],"values":[["111017-0005"],["111017-0004"],["131017-0050"]]}},{"id":26,"description":"Gib die Personennummer der Dozierenden aus, die das Modul mit dem Kürzel LDBD unterrichtet haben!","display_sequence":"G","result":{"columns":["dozentNr"],"values":[["111017-0005"],["111017-0004"]]}},{"id":27,"description":"Gib die Personennummer der Studierenden aus, die am Modul mit dem Kürzel Java1 teilgenommen haben!","display_sequence":"H","result":{"columns":["studNr"],"values":[["121017-0001"],["121017-0003"],["121017-0008"],["121017-0009"],["121017-0010"],["131017-0051"],["121017-0002"],["121017-0006"],["121017-0007"]]}},{"id":28,"description":"Gib die Personennummer der Studierenden aus, die am Modul mit dem Kürzel DBM1 teilgenommen haben!","display_sequence":"I","result":{"columns":["studNr"],"values":[["121017-0001"],["121017-0002"],["121017-0003"],["121017-0010"],["121017-0005"],["131017-0051"],["121017-0006"],["121017-0004"],["121018-0040"],["121117-0041"],["131017-0052"]]}},{"id":29,"description":"Gib die Personennummer der Studierenden aus, die am Modul mit dem Kürzel Java2 teilgenommen haben!","display_sequence":"J","result":{"columns":["studNr"],"values":[["121017-0002"],["121017-0005"],["121017-0006"],["121017-0007"],["121017-0009"],["121017-0010"],["131017-0051"],["121017-0004"]]}},{"id":30,"description":"Gib die Personennummer der Studierenden aus, die am Modul mit dem Kürzel LDBD teilgenommen haben!","display_sequence":"K","result":{"columns":["studNr"],"values":[["121017-0001"],["121017-0007"],["121017-0006"],["121017-0008"],["131017-0050"],["121018-0040"],["121117-0041"]]}}]},{"category_id":4,"display_number":4,"questions":[{"id":31,"description":"Gib die Personennummer, den Namen und die Telefonnummer der Dozierenden aus, die im Seminarraum mit der ID 1 unterrichtet haben!","display_sequence":"A","result":{"columns":["persNr","name","telefon"],"values":[["111017-0003","Jean Dupont","+41 78 345 67 89"],["111017-0002","Marco Rossi","+41 77 234 56 78"],["111017-0004","Sophie Keller","+41 79 456 78 90"],["111017-0005","Anna Bianchi","+41 76 567 89 01"]]}},{"id":32,"description":"Gib die Personennummer, den Namen und die Büronummer der Dozierenden aus, die im Seminarraum mit der ID 2 unterrichtet haben!","display_sequence":"B","result":{"columns":["persNr","name","ort"],"values":[["111017-0002","Marco Rossi","St. Gallen"],["111017-0004","Sophie Keller","Luzern"]]}},{"id":33,"description":"Gib die Personennummer, den Namen, Strasse und die Postleitzahl der Dozierenden aus, die im Seminarraum mit der ID 3 unterrichtet haben!","display_sequence":"C","result":{"columns":["persNr","name","strasse","plz"],"values":[["111017-0005","Anna Bianchi","Zollstrasse 5","8044"],["111017-0004","Sophie Keller","Dorfstrasse 4","6003"],["131017-0050","Jean Richter","Abendrain 4","4051"]]}},{"id":34,"description":"Gib die Personennummer, den Namen und die Telefonnummer der Dozierenden aus, die das Modul mit dem Kürzel Java1 unterrichtet haben!","display_sequence":"D","result":{"columns":["persNr","name","telefon"],"values":[["111017-0002","Marco Rossi","+41 77 234 56 78"],["111017-0003","Jean Dupont","+41 78 345 67 89"]]}},{"id":35,"description":"Gib die Personennummer, den Namen und den Ort der Dozierenden aus, die das Modul mit dem Kürzel Java2 unterrichtet haben!","display_sequence":"E","result":{"columns":["persNr","name","ort"],"values":[["111017-0002","Marco Rossi","St. Gallen"],["131017-0050","Jean Richter","Basel"]]}},{"id":36,"description":"Gib den Namen, Strasse, die Postleitzahl und den Ort der Dozierenden aus, die das Modul mit dem Kürzel DBM1 unterrichtet haben!","display_sequence":"F","result":{"columns":["name","strasse","plz","ort"],"values":[["Anna Bianchi","Zollstrasse 5","8044","Zürich"],["Sophie Keller","Dorfstrasse 4","6003","Luzern"],["Jean Richter","Abendrain 4","4051","Basel"]]}},{"id":37,"description":"Gib die Personennummer, den Namen und die Telefonnummer der Dozierenden aus, die das Modul mit dem Kürzel LDBD unterrichtet haben!","display_sequence":"G","result":{"columns":["persNr","name","telefon"],"values":[["111017-0005","Anna Bianchi","+41 76 567 89 01"],["111017-0004","Sophie Keller","+41 79 456 78 90"]]}},{"id":38,"description":"Gib die Personennummer, den Namen und den Ort der Dozierenden aus, die im Seminarraum mit der ID 1 unterrichtet haben!","display_sequence":"H","result":{"columns":["persNr","name","ort"],"values":[["111017-0003","Jean Dupont","Zürich"],["111017-0002","Marco Rossi","St. Gallen"],["111017-0004","Sophie Keller","Luzern"],["111017-0005","Anna Bianchi","Zürich"]]}},{"id":39,"description":"Gib die Personennummer, den Namen, Strasse und die Postleitzahl der Dozierenden aus, die im Seminarraum mit der ID 2 unterrichtet haben!","display_sequence":"I","result":{"columns":["persNr","name","strasse","plz"],"values":[["111017-0002","Marco Rossi","Marktgasse 2","9000"],["111017-0004","Sophie Keller","Dorfstrasse 4","6003"]]}},{"id":40,"description":"Gib die Personennummer, den Namen und die Telefonnummer der Dozierenden aus, die das Modul mit dem Kürzel Java2 unterrichtet haben!","display_sequence":"J","result":{"columns":["persNr","name","telefon"],"values":[["111017-0002","Marco Rossi","+41 77 234 56 78"],["131017-0050","Jean Richter","+41 77 890 12 33"]]}},{"id":41,"description":"Gib die Personennummer, den Namen und den Ort der Dozierenden aus, die das Modul mit dem Kürzel LDBD unterrichtet haben!","display_sequence":"K","result":{"columns":["persNr","name","ort"],"values":[["111017-0005","Anna Bianchi","Zürich"],["111017-0004","Sophie Keller","Luzern"]]}},{"id":42,"description":"Gib den Namen, Strasse, die Postleitzahl und den Ort der Dozierenden aus, die das Modul mit dem Kürzel Java1 unterrichtet haben!","display_sequence":"L","result":{"columns":["name","strasse","plz","ort"],"values":[["Marco Rossi","Marktgasse 2","9000","St. Gallen"],["Jean Dupont","Bahnhofplatz 3","8001","Zürich"]]}}]},{"category_id":5,"display_number":5,"questions":[{"id":43,"description":"Gib die Personennummer, den Namen und das Büro der Dozierenden aus, die im Seminarraum mit der ID 1 unterrichtet haben!","display_sequence":"A","result":{"columns":["persNr","name","bueroNr"],"values":[["111017-0003","Jean Dupont",603],["111017-0002","Marco Rossi",604],["111017-0004","Sophie Keller",605],["111017-0005","Anna Bianchi",622]]}},{"id":44,"description":"Gib die Personennummer, den Namen und das Büro der Dozierenden aus, die im Seminarraum mit der ID 2 unterrichtet haben!","display_sequence":"B","result":{"columns":["persNr","name","bueroNr"],"values":[["111017-0002","Marco Rossi",604],["111017-0004","Sophie Keller",605]]}},{"id":45,"description":"Gib die Personennummer, den Namen und das Büro der Dozierenden aus, die im Seminarraum mit der ID 3 unterrichtet haben!","display_sequence":"C","result":{"columns":["persNr","name","bueroNr"],"values":[["111017-0005","Anna Bianchi",622],["111017-0004","Sophie Keller",605],["131017-0050","Jean Richter",558]]}},{"id":46,"description":"Gib die Personennummer, den Namen und das Büro der Dozierenden aus, die das Modul mit dem Kürzel Java1 unterrichtet haben!","display_sequence":"D","result":{"columns":["persNr","name","bueroNr"],"values":[["111017-0002","Marco Rossi",604],["111017-0003","Jean Dupont",603]]}},{"id":47,"description":"Gib die Personennummer, den Namen und das Büro der Dozierenden aus, die das Modul mit dem Kürzel Java2 unterrichtet haben!","display_sequence":"E","result":{"columns":["persNr","name","bueroNr"],"values":[["111017-0002","Marco Rossi",604],["131017-0050","Jean Richter",558]]}},{"id":48,"description":"Gib die Personennummer, den Namen und das Büro der Dozierenden aus, die das Modul mit dem Kürzel DBM1 unterrichtet haben!","display_sequence":"F","result":{"columns":["persNr","name","bueroNr"],"values":[["111017-0005","Anna Bianchi",622],["111017-0004","Sophie Keller",605],["131017-0050","Jean Richter",558]]}},{"id":49,"description":"Gib die Personennummer, den Namen und das Büro der Dozierenden aus, die das Modul mit dem Kürzel LDBD unterrichtet haben!","display_sequence":"G","result":{"columns":["persNr","name","bueroNr"],"values":[["111017-0005","Anna Bianchi",622],["111017-0004","Sophie Keller",605]]}}]},{"category_id":6,"display_number":6,"questions":[{"id":50,"description":"Gib die Personennummer der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Jupiter teilgenommen haben!","display_sequence":"A","result":{"columns":["studNr"],"values":[["121017-0004"],["121017-0005"],["121017-0002"],["121017-0006"],["121017-0003"],["121017-0008"],["131017-0051"],["121117-0041"],["121018-0040"],["131017-0053"]]}},{"id":51,"description":"Gib die Personennummer der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Orion teilgenommen haben!","display_sequence":"B","result":{"columns":["studNr"],"values":[["121017-0002"],["121017-0005"],["121017-0006"],["121017-0007"],["121017-0008"],["131017-0050"],["121017-0009"],["121017-0010"],["131017-0051"]]}},{"id":52,"description":"Gib die Personennummer der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Tellus teilgenommen haben!","display_sequence":"C","result":{"columns":["studNr"],"values":[["121017-0001"],["121017-0003"],["121017-0008"],["121017-0009"],["121017-0010"],["131017-0051"],["121017-0004"],["121017-0005"],["121017-0007"]]}},{"id":53,"description":"Gib die Personennummer der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Sirius teilgenommen haben!","display_sequence":"D","result":{"columns":["studNr"],"values":[["121017-0001"],["121017-0002"],["121017-0003"],["121017-0010"],["121017-0007"],["121017-0006"],["121017-0004"],["121018-0040"],["121117-0041"],["131017-0052"]]}}]},{"category_id":7,"display_number":7,"questions":[{"id":54,"description":"Gib die Personennummer, den Namen und die Telefonnummer der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Jupiter teilgenommen haben!","display_sequence":"A","result":{"columns":["persNr","name","telefon"],"values":[["121017-0004","Giulia Brunner","+41 76 901 23 45"],["121017-0005","Thomas Dubois","+41 77 012 34 56"],["121017-0002","Peter Müller","+41 78 789 01 23"],["121017-0006","Daniel Rochat","+41 78 123 45 67"],["121017-0003","Claire Steiner","+41 79 890 12 34"],["121017-0008","Andrea Huber","+41 76 345 67 89"],["131017-0051","Pascal Baumann","+41 78 901 23 45"],["121117-0041","Pascal Conti","+41 76 789 01 23"],["121018-0040","Chiara Weber","+41 79 678 90 12"],["131017-0053","Marco Schmid","+41 78 250 28 55"]]}},{"id":55,"description":"Gib die Personennummer, den Namen und den Ort der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Orion teilgenommen haben!","display_sequence":"B","result":{"columns":["persNr","name","ort"],"values":[["121017-0002","Peter Müller","Bern"],["121017-0005","Thomas Dubois","Basel"],["121017-0006","Daniel Rochat","Bern"],["121017-0007","Monika Frei","Bern"],["121017-0008","Andrea Huber","Rapperswil"],["131017-0050","Jean Richter","Basel"],["121017-0009","Pascal Baumann","Basel"],["121017-0010","Isabelle Haller","Luzern"],["131017-0051","Pascal Baumann","Basel"]]}},{"id":56,"description":"Gib die Personennummer, den Namen und die Telefonnummer der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Tellus teilgenommen haben!","display_sequence":"C","result":{"columns":["persNr","name","telefon"],"values":[["121017-0001","Marco Schmid","+41 77 678 90 12"],["121017-0003","Claire Steiner","+41 79 890 12 34"],["121017-0008","Andrea Huber","+41 76 345 67 89"],["121017-0009","Pascal Baumann","+41 77 456 78 90"],["121017-0010","Isabelle Haller","+41 78 567 89 01"],["131017-0051","Pascal Baumann","+41 78 901 23 45"],["121017-0004","Giulia Brunner","+41 76 901 23 45"],["121017-0005","Thomas Dubois","+41 77 012 34 56"],["121017-0007","Monika Frei","+41 79 234 56 78"]]}},{"id":57,"description":"Gib die Personennummer, den Namen und den Ort der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Sirius teilgenommen haben!","display_sequence":"D","result":{"columns":["persNr","name","ort"],"values":[["121017-0001","Marco Schmid","Winterthur"],["121017-0002","Peter Müller","Bern"],["121017-0003","Claire Steiner","Winterthur"],["121017-0010","Isabelle Haller","Luzern"],["121017-0007","Monika Frei","Bern"],["121017-0006","Daniel Rochat","Bern"],["121017-0004","Giulia Brunner","Bern"],["121018-0040","Chiara Weber","Zürich"],["121117-0041","Pascal Conti","Zürich"],["131017-0052","Thomas Dubois","Basel"]]}},{"id":58,"description":"Gib den Namen, Strasse, den Ort und die Telefonnummer der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Jupiter teilgenommen haben!","display_sequence":"E","result":{"columns":["name","strasse","ort","telefon"],"values":[["Giulia Brunner","Schulstrasse 1","Bern","+41 76 901 23 45"],["Thomas Dubois","Birkenweg 3","Basel","+41 77 012 34 56"],["Peter Müller","Alte Landstrasse 3","Bern","+41 78 789 01 23"],["Daniel Rochat","Eichtalstrasse 2","Bern","+41 78 123 45 67"],["Claire Steiner","Kirchgasse 4","Winterthur","+41 79 890 12 34"],["Andrea Huber","St. Jakobstrasse 112","Rapperswil","+41 76 345 67 89"],["Pascal Baumann","Birkenweg 12","Basel","+41 78 901 23 45"],["Pascal Conti","Rosengartenstrasse 15b","Zürich","+41 76 789 01 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Tellus teilgenommen haben!","display_sequence":"G","result":{"columns":["name","strasse","ort","telefon"],"values":[["Marco Schmid","Burgstrasse 6","Winterthur","+41 77 678 90 12"],["Claire Steiner","Kirchgasse 4","Winterthur","+41 79 890 12 34"],["Andrea Huber","St. Jakobstrasse 112","Rapperswil","+41 76 345 67 89"],["Pascal Baumann","Auenweg 5","Basel","+41 77 456 78 90"],["Isabelle Haller","Lillgatan 3","Luzern","+41 78 567 89 01"],["Pascal Baumann","Birkenweg 12","Basel","+41 78 901 23 45"],["Giulia Brunner","Schulstrasse 1","Bern","+41 76 901 23 45"],["Thomas Dubois","Birkenweg 3","Basel","+41 77 012 34 56"],["Monika Frei","Eichtalstrasse 24","Bern","+41 79 234 56 78"]]}},{"id":61,"description":"Gib den Namen, Strasse, die Postleitzahl und den Ort der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Sirius teilgenommen haben!","display_sequence":"H","result":{"columns":["name","strasse","plz","ort"],"values":[["Marco Schmid","Burgstrasse 6","8401","Winterthur"],["Peter Müller","Alte Landstrasse 3","3006","Bern"],["Claire Steiner","Kirchgasse 4","8404","Winterthur"],["Isabelle Haller","Lillgatan 3","6003","Luzern"],["Monika Frei","Eichtalstrasse 24","3006","Bern"],["Daniel Rochat","Eichtalstrasse 2","3007","Bern"],["Giulia Brunner","Schulstrasse 1","3004","Bern"],["Chiara Weber","Industriestrasse 44","8001","Zürich"],["Pascal Conti","Rosengartenstrasse 15b","8002","Zürich"],["Thomas Dubois","Birkenweg 1","4051","Basel"]]}}]},{"category_id":8,"display_number":8,"questions":[{"id":62,"description":"Gib die Anzahl der Kursdurchführungen aus, an denen jeder Student teilgenommen hat! Zeige die Personennummer des Studierenden, den Namen des Studierenden und die Anzahl!","display_sequence":"A","result":{"columns":["persNr","name","anzahl"],"values":[["111017-0001","Lukas Meier",0],["121017-0001","Marco Schmid",4],["121017-0002","Peter Müller",4],["121017-0003","Claire Steiner",5],["121017-0004","Giulia Brunner",4],["121017-0005","Thomas Dubois",5],["121017-0006","Daniel Rochat",6],["121017-0007","Monika Frei",4],["121017-0008","Andrea Huber",6],["121017-0009","Pascal Baumann",3],["121017-0010","Isabelle Haller",5],["121018-0040","Chiara Weber",3],["121117-0041","Pascal Conti",3],["131017-0050","Jean Richter",1],["131017-0051","Pascal Baumann",3],["131017-0052","Thomas Dubois",1],["131017-0053","Marco Schmid",1]]},"alternative_results":[{"columns":["persNr","name","anzahl"],"values":[["121017-0001","Marco Schmid",4],["121017-0002","Peter Müller",4],["121017-0003","Claire Steiner",5],["121017-0004","Giulia Brunner",4],["121017-0005","Thomas Dubois",5],["121017-0006","Daniel Rochat",6],["121017-0007","Monika Frei",4],["121017-0008","Andrea Huber",6],["121017-0009","Pascal Baumann",3],["121017-0010","Isabelle Haller",5],["121018-0040","Chiara Weber",3],["121117-0041","Pascal Conti",3],["131017-0050","Jean Richter",1],["131017-0051","Pascal Baumann",3],["131017-0052","Thomas Dubois",1],["131017-0053","Marco Schmid",1]]}]},{"id":63,"description":"Gib die Anzahl der Kursdurchführungen aus, für die jeder Seminarraum verwendet wurde! Zeige den Namen des Seminarraums, die Kapazität des Seminarraums und die Anzahl!","display_sequence":"B","result":{"columns":["name","anzahlPlaetze","anzahl"],"values":[["Jupiter",12,6],["Orion",24,3],["Sirius",16,4],["Tellus",32,3],["Saturnus",24,3]]},"alternative_results":[{"columns":["name","anzahlPlaetze","anzahl"],"values":[["Jupiter",12,6],["Orion",24,3],["Sirius",16,4],["Tellus",32,3],["Saturnus",24,3]]}]},{"id":64,"description":"Gib die Anzahl der Kursdurchführungen aus, die jedes Modul hatte! Zeige das Kürzel des Moduls, den Namen des Moduls und die Anzahl!","display_sequence":"C","result":{"columns":["kuerzel","name","anzahl"],"values":[["DBM1","Datenbankmanagement 1",4],["Java1","Java-Grundkurs",5],["Java2","Java-Fortsetzungskurs",3],["LDBD","Logisches Datenbank-Design",3],["Log1","Logik",3],["PDBD","Physisches Datenbank-Design",1]]},"alternative_results":[{"columns":["kuerzel","name","anzahl"],"values":[["DBM1","Datenbankmanagement 1",4],["Java1","Java-Grundkurs",5],["Java2","Java-Fortsetzungskurs",3],["LDBD","Logisches Datenbank-Design",3],["Log1","Logik",3],["PDBD","Physisches Datenbank-Design",1]]}]},{"id":65,"description":"Gib die Anzahl der Kursdurchführungen aus, die jeder Dozent gehalten hat! Zeige die Personennummer des Dozenten, den Namen des Dozenten und die Anzahl!","display_sequence":"D","result":{"columns":["persNr","name","anzahl"],"values":[["111017-0001","Lukas Meier",0],["111017-0002","Marco Rossi",6],["111017-0003","Jean Dupont",3],["111017-0004","Sophie Keller",4],["111017-0005","Anna Bianchi",4],["131017-0050","Jean Richter",2]]},"alternative_results":[{"columns":["persNr","name","anzahl"],"values":[["111017-0002","Marco Rossi",6],["111017-0003","Jean Dupont",3],["111017-0004","Sophie Keller",4],["111017-0005","Anna Bianchi",4],["131017-0050","Jean Richter",2]]}]},{"id":66,"description":"Gib die Anzahl der teilnehmenden Studierenden für jede Kursdurchführung aus! Zeige Modulkürzel und Modulname der Kursdurchführung, Startdatum der Kursdurchführung und die Anzahl!","display_sequence":"E","result":{"columns":["modulkuerzel","name","startdatum","anzahl"],"values":[["DBM1","Datenbankmanagement 1","2008-04-02T00:00:00.000Z",4],["DBM1","Datenbankmanagement 1","2009-01-28T00:00:00.000Z",3],["DBM1","Datenbankmanagement 1","2010-02-15T00:00:00.000Z",3],["DBM1","Datenbankmanagement 1","2010-09-22T00:00:00.000Z",4],["Java1","Java-Grundkurs","2008-03-06T00:00:00.000Z",6],["Java1","Java-Grundkurs","2008-05-06T00:00:00.000Z",2],["Java1","Java-Grundkurs","2008-09-02T00:00:00.000Z",2],["Java1","Java-Grundkurs","2010-05-01T00:00:00.000Z",3],["Java1","Java-Grundkurs","2011-05-01T00:00:00.000Z",0],["Java2","Java-Fortsetzungskurs","2008-04-16T00:00:00.000Z",4],["Java2","Java-Fortsetzungskurs","2009-01-22T00:00:00.000Z",4],["Java2","Java-Fortsetzungskurs","2010-04-11T00:00:00.000Z",4],["LDBD","Logisches Datenbank-Design","2008-05-06T00:00:00.000Z",2],["LDBD","Logisches Datenbank-Design","2008-09-02T00:00:00.000Z",3],["LDBD","Logisches Datenbank-Design","2010-09-24T00:00:00.000Z",3],["Log1","Logik","2008-04-16T00:00:00.000Z",2],["Log1","Logik","2009-09-17T00:00:00.000Z",2],["Log1","Logik","2010-05-01T00:00:00.000Z",4],["PDBD","Physisches Datenbank-Design","2008-05-09T00:00:00.000Z",3]]},"alternative_results":[{"columns":["modulkuerzel","name","startdatum","anzahl"],"values":[["DBM1","Datenbankmanagement 1","2008-04-02T00:00:00.000Z",4],["DBM1","Datenbankmanagement 1","2009-01-28T00:00:00.000Z",3],["DBM1","Datenbankmanagement 1","2010-02-15T00:00:00.000Z",3],["DBM1","Datenbankmanagement 1","2010-09-22T00:00:00.000Z",4],["Java1","Java-Grundkurs","2008-03-06T00:00:00.000Z",6],["Java1","Java-Grundkurs","2008-05-06T00:00:00.000Z",2],["Java1","Java-Grundkurs","2008-09-02T00:00:00.000Z",2],["Java1","Java-Grundkurs","2010-05-01T00:00:00.000Z",3],["Java2","Java-Fortsetzungskurs","2008-04-16T00:00:00.000Z",4],["Java2","Java-Fortsetzungskurs","2009-01-22T00:00:00.000Z",4],["Java2","Java-Fortsetzungskurs","2010-04-11T00:00:00.000Z",4],["LDBD","Logisches Datenbank-Design","2008-05-06T00:00:00.000Z",2],["LDBD","Logisches Datenbank-Design","2008-09-02T00:00:00.000Z",3],["LDBD","Logisches Datenbank-Design","2010-09-24T00:00:00.000Z",3],["Log1","Logik","2008-04-16T00:00:00.000Z",2],["Log1","Logik","2009-09-17T00:00:00.000Z",2],["Log1","Logik","2010-05-01T00:00:00.000Z",4],["PDBD","Physisches Datenbank-Design","2008-05-09T00:00:00.000Z",3]]}]}]},{"category_id":9,"display_number":9,"questions":[{"id":67,"description":"I. Erstelle eine Sicht, die Personalnummer, den Namen und die Telefonnummer sowie die Anzahl der Kursdurchführungen anzeigt, die jeder Dozent gehalten hat! II. Gib dann die Personalnummer, den Namen und die Telefonnummer des Dozenten aus, der die meisten Kursdurchführungen gehalten hat!","display_sequence":"A","result":{"columns":["persNr","name","telefon"],"values":[["111017-0002","Marco Rossi","+41 77 234 56 78"]]}},{"id":68,"description":"I. Erstelle eine Sicht, die Personalnummer, den Namen und die Telefonnummer sowie die Anzahl der Kursdurchführungen anzeigt, die jeder Student besucht hat! II. Gib dann die Personalnummer, den Namen und die Telefonnummer der Studierenden aus, die die meisten Kursdurchführungen besucht haben!","display_sequence":"B","result":{"columns":["persNr","name","telefon"],"values":[["121017-0006","Daniel Rochat","+41 78 123 45 67"],["121017-0008","Andrea Huber","+41 76 345 67 89"]]}},{"id":69,"description":"I. Erstelle eine Sicht, die den Kurscode, den Namen, die Dauer und die Anzahl der Kursdurchführung pro Kurs anzeigt! II. Gib dann die Kurscode, den Namen und die Dauer des Kurses mit den meisten Unterrichtseinheiten aus!","display_sequence":"C","result":{"columns":["kuerzel","name","kurstage"],"values":[["Java1","Java-Grundkurs",5]]}},{"id":70,"description":"I. Erstelle eine Sicht, die das Modulkürzel, den Namen, die Anzahl Kurstage sowie die Anzahl der Kursdurchführungen pro Modul anzeigt! II. Gib dann den Namen und die Kapazität des Raums aus, in dem die meisten Kursdurchführungen stattgefunden haben!","display_sequence":"D","result":{"columns":["name","anzahlPlaetze"],"values":[["Jupiter",12]]}},{"id":71,"description":"I. Erstelle eine Sicht, die den Kurscode, den Kursnamen und das Startdatum sowie die Teilnehmerzahl pro Kursdurchführung anzeigt! II. Gib dann den Kurscode, den Kursnamen und das Startdatum des Kurstermins mit den meisten Teilnehmern aus!","display_sequence":"E","result":{"columns":["modulkuerzel","name","startdatum"],"values":[["Java1","Java-Grundkurs","2008-03-06T00:00:00.000Z"]]}}]},{"category_id":10,"display_number":10,"questions":[{"id":72,"description":"Gib die Personennummer, den Namen und den Ort der Studierenden aus, die an mindestens drei VERSCHIEDENEN Modulen teilgenommen haben!","display_sequence":"A","result":{"columns":["persNr","name","ort"],"values":[["121017-0001","Marco Schmid","Winterthur"],["121017-0002","Peter Müller","Bern"],["121017-0003","Claire Steiner","Winterthur"],["121017-0004","Giulia Brunner","Bern"],["121017-0005","Thomas Dubois","Basel"],["121017-0006","Daniel Rochat","Bern"],["121017-0007","Monika Frei","Bern"],["121017-0008","Andrea Huber","Rapperswil"],["121017-0010","Isabelle Haller","Luzern"],["121018-0040","Chiara Weber","Zürich"],["121117-0041","Pascal Conti","Zürich"],["131017-0051","Pascal Baumann","Basel"]]}},{"id":73,"description":"Gib die Personennummer, den Namen und die Telefonnummer der Dozierenden aus, die mindestens drei VERSCHIEDENE Module gehalten haben!","display_sequence":"B","result":{"columns":["persNr","name","telefon"],"values":[["111017-0002","Marco Rossi","+41 77 234 56 78"],["111017-0004","Sophie Keller","+41 79 456 78 90"],["111017-0005","Anna Bianchi","+41 76 567 89 01"]]}},{"id":74,"description":"Gib die Personennummer, den Namen und den Ort der Dozierenden aus, die Kursdurchführungen in mindestens drei VERSCHIEDENEN Seminarräumen gehalten haben!","display_sequence":"C","result":{"columns":["persNr","name","ort"],"values":[["111017-0002","Marco Rossi","St. Gallen"],["111017-0003","Jean Dupont","Zürich"],["111017-0004","Sophie Keller","Luzern"]]}},{"id":75,"description":"Gib Namen und Kapazität der Seminarräume aus, die von mindestens drei VERSCHIEDENEN Dozenten verwendet wurden!","display_sequence":"D","result":{"columns":["name","anzahlPlaetze"],"values":[["Jupiter",12],["Sirius",16],["Tellus",32],["Saturnus",24]]}},{"id":76,"description":"Gib Namen und Kapazität der Seminarräume aus, die für Kursdurchführungen von mindestens drei VERSCHIEDENEN Modulen verwendet wurden!","display_sequence":"E","result":{"columns":["name","anzahlPlaetze"],"values":[["Jupiter",12]]}},{"id":77,"description":"Gib Code, Namen und Preis der Module aus, die in mindestens drei VERSCHIEDENEN Seminarräumen gehalten wurden!","display_sequence":"F","result":{"columns":["kuerzel","name","preis"],"values":[["Java1","Java-Grundkurs",6700],["LDBD","Logisches Datenbank-Design",6000]]}},{"id":78,"description":"Gib Code, Namen und Preis der Module aus, die von mindestens drei VERSCHIEDENEN Dozenten gehalten wurden!","display_sequence":"G","result":{"columns":["kuerzel","name","preis"],"values":[["DBM1","Datenbankmanagement 1",2800],["Log1","Logik",4500]]}}]},{"category_id":11,"display_number":11,"questions":[{"id":79,"description":"Gib Namen und Ort der Personen aus, die keine Dozenten sind!","display_sequence":"A","result":{"columns":["name","ort"],"values":[["Marco Schmid","Winterthur"],["Peter Müller","Bern"],["Claire Steiner","Winterthur"],["Giulia Brunner","Bern"],["Thomas Dubois","Basel"],["Daniel Rochat","Bern"],["Monika Frei","Bern"],["Andrea Huber","Rapperswil"],["Pascal Baumann","Basel"],["Isabelle Haller","Luzern"],["Chiara Weber","Zürich"],["Pascal Conti","Zürich"],["Pascal Baumann","Basel"],["Thomas Dubois","Basel"],["Marco Schmid","Luzern"]]}},{"id":80,"description":"Gib Namen und Ort der Studierenden aus, die an keiner Kursdurchführung mit Startdatum im Jahr 2010 teilgenommen haben!","display_sequence":"B","result":{"columns":["name","ort"],"values":[["Lukas Meier","Lugano"],["Marco Schmid","Winterthur"],["Peter Müller","Bern"],["Pascal Baumann","Basel"],["Jean Richter","Basel"],["Pascal Baumann","Basel"]]}},{"id":81,"description":"Gib Namen und Ort der Studierenden aus, die das Modul mit dem Kürzel Java1 nicht besucht haben!","display_sequence":"C","result":{"columns":["name","ort"],"values":[["Lukas Meier","Lugano"],["Giulia Brunner","Bern"],["Thomas Dubois","Basel"],["Chiara Weber","Zürich"],["Pascal Conti","Zürich"],["Jean Richter","Basel"],["Thomas Dubois","Basel"],["Marco Schmid","Luzern"]]}},{"id":82,"description":"Gib Namen und Ort der Studierenden aus, die das Modul mit dem Kürzel Log1 nicht besucht haben!","display_sequence":"D","result":{"columns":["name","ort"],"values":[["Lukas Meier","Lugano"],["Marco Schmid","Winterthur"],["Peter Müller","Bern"],["Claire Steiner","Winterthur"],["Daniel Rochat","Bern"],["Monika Frei","Bern"],["Pascal Baumann","Basel"],["Isabelle Haller","Luzern"],["Jean Richter","Basel"],["Pascal Baumann","Basel"],["Thomas Dubois","Basel"]]}}]},{"category_id":12,"display_number":12,"questions":[{"id":83,"description":"Gib Personennummer, Namen, Büro und Telefonnummer der Dozierenden aus, die niemals eine Kursdurchführung für das Modul \"Java-Fortsetzungskurs\" gehalten haben!","display_sequence":"A","result":{"columns":["persNr","name","bueroNr","telefon"],"values":[["111017-0001","Lukas Meier",634,"+41 76 123 45 67"],["111017-0003","Jean Dupont",603,"+41 78 345 67 89"],["111017-0004","Sophie Keller",605,"+41 79 456 78 90"],["111017-0005","Anna Bianchi",622,"+41 76 567 89 01"]]}},{"id":84,"description":"Gib Personennummer, Namen und Ort der Studierenden mit Nachteilsausgleich aus, die das Modul \"Logisches Datenbank-Design\" nicht besucht haben!","display_sequence":"B","result":{"columns":["persNr","name","ort"],"values":[["121017-0002","Peter Müller","Bern"],["121017-0010","Isabelle Haller","Luzern"],["131017-0052","Thomas Dubois","Basel"]]}},{"id":85,"description":"Gib Namen und Kapazität der Seminarräume aus, die niemals für eine Kursdurchführung des Moduls \"Logisches Datenbank-Design\" verwendet wurden!","display_sequence":"C","result":{"columns":["name","anzahlPlaetze"],"values":[["Jupiter",12],["Tellus",32]]}},{"id":86,"description":"Gib Namen und Kapazität des Seminarraumes aus, der niemals vom Dozenten Marco Rossi verwendet wurden!","display_sequence":"D","result":{"columns":["name","anzahlPlaetze"],"values":[["Sirius",16]]}}]},{"category_id":13,"display_number":13,"questions":[{"id":87,"description":"Gib Personennummer, Namen und Telefonnummer der Studierenden aus, die das Modul \"Physisches Datenbank-Design\" oder das Modul \"Logisches Datenbank-Design\" (oder beide) besucht haben!","display_sequence":"A","result":{"columns":["persNr","name","telefon"],"values":[["121017-0001","Marco Schmid","+41 77 678 90 12"],["121017-0003","Claire Steiner","+41 79 890 12 34"],["121017-0006","Daniel Rochat","+41 78 123 45 67"],["121017-0007","Monika Frei","+41 79 234 56 78"],["121017-0008","Andrea Huber","+41 76 345 67 89"],["121018-0040","Chiara Weber","+41 79 678 90 12"],["121117-0041","Pascal Conti","+41 76 789 01 23"],["131017-0050","Jean Richter","+41 77 890 12 33"]]}},{"id":88,"description":"Gib Personennummer, Namen und Ort der Studierenden aus, die an Kursdurchführungen im Seminarraum Orion oder im Seminarraum Jupiter (oder in beiden) teilgenommen haben!","display_sequence":"B","result":{"columns":["persNr","name","ort"],"values":[["121017-0002","Peter Müller","Bern"],["121017-0003","Claire Steiner","Winterthur"],["121017-0004","Giulia Brunner","Bern"],["121017-0005","Thomas Dubois","Basel"],["121017-0006","Daniel Rochat","Bern"],["121017-0007","Monika Frei","Bern"],["121017-0008","Andrea Huber","Rapperswil"],["121017-0009","Pascal Baumann","Basel"],["121017-0010","Isabelle Haller","Luzern"],["121018-0040","Chiara Weber","Zürich"],["121117-0041","Pascal Conti","Zürich"],["131017-0050","Jean Richter","Basel"],["131017-0051","Pascal Baumann","Basel"],["131017-0053","Marco Schmid","Luzern"]]}},{"id":89,"description":"Gib Personennummer, Namen und Telefonnummer der Dozierenden aus, die das Modul \"Logik\" oder das Modul \"Datenbankmanagement 1\" (oder beide) gehalten haben!","display_sequence":"C","result":{"columns":["persNr","name","telefon"],"values":[["111017-0002","Marco Rossi","+41 77 234 56 78"],["111017-0003","Jean Dupont","+41 78 345 67 89"],["111017-0004","Sophie Keller","+41 79 456 78 90"],["111017-0005","Anna Bianchi","+41 76 567 89 01"],["131017-0050","Jean Richter","+41 77 890 12 33"]]}},{"id":90,"description":"Gib Namen und Kapazität der Seminarräume aus, die vom Dozenten Marco Rossi oder vom Dozenten Jean Dupont (oder von beiden) verwendet wurden!","display_sequence":"D","result":{"columns":["name","anzahlPlaetze"],"values":[["Jupiter",12],["Orion",24],["Saturnus",24],["Tellus",32]]}},{"id":91,"description":"Gib Namen und Kapazität der Seminarräume aus, die für das Modul \"Logik\" oder für das Modul \"Java-Fortsetzungskurs\" (oder für beide) verwendet wurden!","display_sequence":"E","result":{"columns":["name","anzahlPlaetze"],"values":[["Jupiter",12],["Orion",24],["Tellus",32]]}}]},{"category_id":14,"display_number":14,"questions":[{"id":92,"description":"Gib Personennummer, Namen und Ort der Studierenden aus, die sowohl das Modul \"Physisches Datenbank-Design\" als auch das Modul \"Logisches Datenbank-Design\" besucht haben!","display_sequence":"A","result":{"columns":["persNr","name","ort"],"values":[["121017-0006","Daniel Rochat","Bern"],["121017-0008","Andrea Huber","Rapperswil"]]}},{"id":93,"description":"Gib Personennummer, Namen und Telefonnummer der Studierenden aus, die an Kursdurchführungen sowohl im Seminarraum Orion als auch im Seminarraum Jupiter teilgenommen haben!","display_sequence":"B","result":{"columns":["persNr","name","telefon"],"values":[["121017-0002","Peter Müller","+41 78 789 01 23"],["121017-0005","Thomas Dubois","+41 77 012 34 56"],["121017-0006","Daniel Rochat","+41 78 123 45 67"],["121017-0008","Andrea Huber","+41 76 345 67 89"],["131017-0051","Pascal Baumann","+41 78 901 23 45"]]}},{"id":94,"description":"Gib Personennummer, Namen und Büro der Dozierenden aus, die sowohl das Modul \"Logisches Datenbank-Design\" als auch das Modul \"Datenbankmanagement 1\" gehalten haben!","display_sequence":"C","result":{"columns":["persNr","name","bueroNr"],"values":[["111017-0004","Sophie Keller",605],["111017-0005","Anna Bianchi",622]]}},{"id":95,"description":"Gib Namen und Kapazität der Seminarräume aus, die sowohl vom Dozenten Sophie Keller als auch vom Dozenten Marco Rossi verwendet wurden!","display_sequence":"D","result":{"columns":["name","anzahlPlaetze"],"values":[["Jupiter",12],["Orion",24],["Saturnus",24]]}},{"id":96,"description":"Gib Namen und Kapazität der Seminarräume aus, die sowohl für das Modul \"Logik\" als auch für das Modul \"Java-Grundkurs\" verwendet wurden!","display_sequence":"E","result":{"columns":["name","anzahlPlaetze"],"values":[["Jupiter",12]]}},{"id":97,"description":"Gib Personennummer, Namen, Büro und Telefonnummer der Dozierenden aus, die Kursdurchführungen sowohl im Seminarraum Jupiter als auch im Seminarraum Sirius gehalten haben!","display_sequence":"F","result":{"columns":["persNr","name","bueroNr","telefon"],"values":[["111017-0004","Sophie Keller",605,"+41 79 456 78 90"],["111017-0005","Anna Bianchi",622,"+41 76 567 89 01"]]}}]},{"category_id":15,"display_number":15,"questions":[{"id":98,"description":"Gib Personennummer, Namen und Telefonnummer der Studierenden aus, die Kurse bei allen Lehrkräften aus Zürich besucht haben!","display_sequence":"A","result":{"columns":["persNr","name","telefon"],"values":[["121017-0001","Marco Schmid","+41 77 678 90 12"],["121017-0005","Thomas Dubois","+41 77 012 34 56"],["121017-0007","Monika Frei","+41 79 234 56 78"],["121017-0004","Giulia Brunner","+41 76 901 23 45"]]}},{"id":99,"description":"Gib Namen und Kapazität der Seminarräume aus, die von sämtlichen Dozenten aus Zürich verwendet wurden!","display_sequence":"B","result":{"columns":["name","anzahlPlaetze"],"values":[["Jupiter",12]]}},{"id":100,"description":"Gib Namen und Kapazität der Seminarräume aus, die für sämtliche Module verwendet wurden, die weniger als CHF 5000 kosten!","display_sequence":"C","result":{"columns":["name","anzahlPlaetze"],"values":[["Jupiter",12]]}},{"id":101,"description":"Gib Personennummer, Namen und Telefonnummer der Dozierenden aus, die Kursdurchführungen sämtlicher Module mit höchstens drei Kurstagen Dauer gehalten haben!","display_sequence":"D","result":{"columns":["persNr","name","telefon"],"values":[["111017-0005","Anna Bianchi","+41 76 567 89 01"]]}}]},{"category_id":16,"display_number":16,"questions":[{"id":102,"description":"Gib für jede Kursdurchführung die Anzahl der Studierenden aus Bern aus! Zeige Modulkürzel, Startdatum und Anzahl der Studierenden. Auch Kursdurchführungen ohne Studierende aus Bern sollen im Ergebnis enthalten sein (mit 0 in der Anzahlspalte)!","display_sequence":"A","result":{"columns":["modulkuerzel","startdatum","anzahl"],"values":[["DBM1","2008-04-02T00:00:00.000Z",1],["DBM1","2009-01-28T00:00:00.000Z",0],["DBM1","2010-02-15T00:00:00.000Z",1],["DBM1","2010-09-22T00:00:00.000Z",1],["Java1","2008-03-06T00:00:00.000Z",0],["Java1","2008-05-06T00:00:00.000Z",2],["Java1","2008-09-02T00:00:00.000Z",0],["Java1","2010-05-01T00:00:00.000Z",2],["Java1","2011-05-01T00:00:00.000Z",0],["Java2","2008-04-16T00:00:00.000Z",3],["Java2","2009-01-22T00:00:00.000Z",1],["Java2","2010-04-11T00:00:00.000Z",2],["LDBD","2008-05-06T00:00:00.000Z",1],["LDBD","2008-09-02T00:00:00.000Z",1],["LDBD","2010-09-24T00:00:00.000Z",0],["Log1","2008-04-16T00:00:00.000Z",1],["Log1","2009-09-17T00:00:00.000Z",1],["Log1","2010-05-01T00:00:00.000Z",0],["PDBD","2008-05-09T00:00:00.000Z",1]]}},{"id":103,"description":"Gib die Anzahl der Male aus, die jeder Student am Modul \"Logisches Datenbank-Design\" teilgenommen hat! Zeige die Personennummer, den Namen und den Ort des Studierenden sowie die Anzahl!","display_sequence":"B","result":{"columns":["persNr","name","ort","anzahl"],"values":[["111017-0001","Lukas Meier","Lugano",0],["121017-0001","Marco Schmid","Winterthur",1],["121017-0002","Peter Müller","Bern",0],["121017-0003","Claire Steiner","Winterthur",0],["121017-0004","Giulia Brunner","Bern",0],["121017-0005","Thomas Dubois","Basel",0],["121017-0006","Daniel Rochat","Bern",1],["121017-0007","Monika Frei","Bern",1],["121017-0008","Andrea Huber","Rapperswil",2],["121017-0009","Pascal Baumann","Basel",0],["121017-0010","Isabelle Haller","Luzern",0],["121018-0040","Chiara Weber","Zürich",1],["121117-0041","Pascal Conti","Zürich",1],["131017-0050","Jean Richter","Basel",1],["131017-0051","Pascal Baumann","Basel",0],["131017-0052","Thomas Dubois","Basel",0],["131017-0053","Marco Schmid","Luzern",0]]}},{"id":104,"description":"Gib die Anzahl der Male aus, die jeder Student am Modul \"Java-Grundkurs\" teilgenommen hat! Zeige die Personennummer, den Namen und den Ort des Studierenden sowie die Anzahl!","display_sequence":"C","result":{"columns":["persNr","name","ort","anzahl"],"values":[["111017-0001","Lukas Meier","Lugano",0],["121017-0001","Marco Schmid","Winterthur",2],["121017-0002","Peter Müller","Bern",1],["121017-0003","Claire Steiner","Winterthur",1],["121017-0004","Giulia Brunner","Bern",0],["121017-0005","Thomas Dubois","Basel",0],["121017-0006","Daniel Rochat","Bern",2],["121017-0007","Monika Frei","Bern",1],["121017-0008","Andrea Huber","Rapperswil",2],["121017-0009","Pascal Baumann","Basel",2],["121017-0010","Isabelle Haller","Luzern",1],["121018-0040","Chiara Weber","Zürich",0],["121117-0041","Pascal Conti","Zürich",0],["131017-0050","Jean Richter","Basel",0],["131017-0051","Pascal Baumann","Basel",1],["131017-0052","Thomas Dubois","Basel",0],["131017-0053","Marco Schmid","Luzern",0]]}},{"id":105,"description":"Gib die Anzahl der Male aus, die jeder Dozent das Modul \"Java-Grundkurs\" gehalten hat! Zeige die Personennummer, den Namen, die Telefonnummer und das Büro des Dozenten sowie die Anzahll!","display_sequence":"D","result":{"columns":["persNr","name","telefon","bueroNr","anzahl"],"values":[["111017-0001","Lukas Meier","+41 76 123 45 67",634,0],["111017-0002","Marco Rossi","+41 77 234 56 78",604,3],["111017-0003","Jean Dupont","+41 78 345 67 89",603,2],["111017-0004","Sophie Keller","+41 79 456 78 90",605,0],["111017-0005","Anna Bianchi","+41 76 567 89 01",622,0],["131017-0050","Jean Richter","+41 77 890 12 33",558,0]]}},{"id":106,"description":"Gib die Anzahl der Kursdurchführungen aus, die jeder Dozent mit Start im Jahr 2010 gehalten hat! 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haben!","display_sequence":"E","result":{"columns":["persNr","name","ort"],"values":[["111017-0002","Marco Rossi","St. Gallen"],["131017-0050","Jean Richter","Basel"]]}},{"id":36,"description":"Gib den Namen, Strasse, die Postleitzahl und den Ort der Dozierenden aus, die das Modul mit dem Kürzel DBM1 unterrichtet haben!","display_sequence":"F","result":{"columns":["name","strasse","plz","ort"],"values":[["Anna Bianchi","Zollstrasse 5","8044","Zürich"],["Sophie Keller","Dorfstrasse 4","6003","Luzern"],["Jean Richter","Abendrain 4","4051","Basel"]]}},{"id":37,"description":"Gib die Personennummer, den Namen und die Telefonnummer der Dozierenden aus, die das Modul mit dem Kürzel LDBD unterrichtet haben!","display_sequence":"G","result":{"columns":["persNr","name","telefon"],"values":[["111017-0005","Anna Bianchi","+41 76 567 89 01"],["111017-0004","Sophie Keller","+41 79 456 78 90"]]}},{"id":38,"description":"Gib die Personennummer, den Namen und den Ort der Dozierenden aus, die im Seminarraum mit der ID 1 unterrichtet haben!","display_sequence":"H","result":{"columns":["persNr","name","ort"],"values":[["111017-0003","Jean Dupont","Zürich"],["111017-0002","Marco Rossi","St. Gallen"],["111017-0004","Sophie Keller","Luzern"],["111017-0005","Anna Bianchi","Zürich"]]}},{"id":39,"description":"Gib die Personennummer, den Namen, Strasse und die Postleitzahl der Dozierenden aus, die im Seminarraum mit der ID 2 unterrichtet haben!","display_sequence":"I","result":{"columns":["persNr","name","strasse","plz"],"values":[["111017-0002","Marco Rossi","Marktgasse 2","9000"],["111017-0004","Sophie Keller","Dorfstrasse 4","6003"]]}},{"id":40,"description":"Gib die Personennummer, den Namen und die Telefonnummer der Dozierenden aus, die das Modul mit dem Kürzel Java2 unterrichtet haben!","display_sequence":"J","result":{"columns":["persNr","name","telefon"],"values":[["111017-0002","Marco Rossi","+41 77 234 56 78"],["131017-0050","Jean Richter","+41 77 890 12 33"]]}},{"id":41,"description":"Gib die Personennummer, den Namen und den Ort der Dozierenden aus, die das Modul mit dem Kürzel LDBD unterrichtet haben!","display_sequence":"K","result":{"columns":["persNr","name","ort"],"values":[["111017-0005","Anna Bianchi","Zürich"],["111017-0004","Sophie Keller","Luzern"]]}},{"id":42,"description":"Gib den Namen, Strasse, die Postleitzahl und den Ort der Dozierenden aus, die das Modul mit dem Kürzel Java1 unterrichtet haben!","display_sequence":"L","result":{"columns":["name","strasse","plz","ort"],"values":[["Marco Rossi","Marktgasse 2","9000","St. Gallen"],["Jean Dupont","Bahnhofplatz 3","8001","Zürich"]]}}]},{"category_id":5,"display_number":5,"questions":[{"id":43,"description":"Gib die Personennummer, den Namen und das Büro der Dozierenden aus, die im Seminarraum mit der ID 1 unterrichtet haben!","display_sequence":"A","result":{"columns":["persNr","name","bueroNr"],"values":[["111017-0003","Jean Dupont",603],["111017-0002","Marco Rossi",604],["111017-0004","Sophie Keller",605],["111017-0005","Anna Bianchi",622]]}},{"id":44,"description":"Gib die Personennummer, den Namen und das Büro der Dozierenden aus, die im Seminarraum mit der ID 2 unterrichtet haben!","display_sequence":"B","result":{"columns":["persNr","name","bueroNr"],"values":[["111017-0002","Marco Rossi",604],["111017-0004","Sophie Keller",605]]}},{"id":45,"description":"Gib die Personennummer, den Namen und das Büro der Dozierenden aus, die im Seminarraum mit der ID 3 unterrichtet haben!","display_sequence":"C","result":{"columns":["persNr","name","bueroNr"],"values":[["111017-0005","Anna Bianchi",622],["111017-0004","Sophie Keller",605],["131017-0050","Jean Richter",558]]}},{"id":46,"description":"Gib die Personennummer, den Namen und das Büro der Dozierenden aus, die das Modul mit dem Kürzel Java1 unterrichtet haben!","display_sequence":"D","result":{"columns":["persNr","name","bueroNr"],"values":[["111017-0002","Marco Rossi",604],["111017-0003","Jean Dupont",603]]}},{"id":47,"description":"Gib die Personennummer, den Namen und das Büro der Dozierenden aus, die das Modul mit dem Kürzel Java2 unterrichtet haben!","display_sequence":"E","result":{"columns":["persNr","name","bueroNr"],"values":[["111017-0002","Marco Rossi",604],["131017-0050","Jean Richter",558]]}},{"id":48,"description":"Gib die Personennummer, den Namen und das Büro der Dozierenden aus, die das Modul mit dem Kürzel DBM1 unterrichtet haben!","display_sequence":"F","result":{"columns":["persNr","name","bueroNr"],"values":[["111017-0005","Anna Bianchi",622],["111017-0004","Sophie Keller",605],["131017-0050","Jean Richter",558]]}},{"id":49,"description":"Gib die Personennummer, den Namen und das Büro der Dozierenden aus, die das Modul mit dem Kürzel LDBD unterrichtet haben!","display_sequence":"G","result":{"columns":["persNr","name","bueroNr"],"values":[["111017-0005","Anna Bianchi",622],["111017-0004","Sophie Keller",605]]}}]},{"category_id":6,"display_number":6,"questions":[{"id":50,"description":"Gib die Personennummer der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Jupiter teilgenommen haben!","display_sequence":"A","result":{"columns":["studNr"],"values":[["121017-0004"],["121017-0005"],["121017-0002"],["121017-0006"],["121017-0003"],["121017-0008"],["131017-0051"],["121117-0041"],["121018-0040"],["131017-0053"]]}},{"id":51,"description":"Gib die Personennummer der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Orion teilgenommen haben!","display_sequence":"B","result":{"columns":["studNr"],"values":[["121017-0002"],["121017-0005"],["121017-0006"],["121017-0007"],["121017-0008"],["131017-0050"],["121017-0009"],["121017-0010"],["131017-0051"]]}},{"id":52,"description":"Gib die Personennummer der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Tellus teilgenommen haben!","display_sequence":"C","result":{"columns":["studNr"],"values":[["121017-0001"],["121017-0003"],["121017-0008"],["121017-0009"],["121017-0010"],["131017-0051"],["121017-0004"],["121017-0005"],["121017-0007"]]}},{"id":53,"description":"Gib die Personennummer der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Sirius teilgenommen haben!","display_sequence":"D","result":{"columns":["studNr"],"values":[["121017-0001"],["121017-0002"],["121017-0003"],["121017-0010"],["121017-0007"],["121017-0006"],["121017-0004"],["121018-0040"],["121117-0041"],["131017-0052"]]}}]},{"category_id":7,"display_number":7,"questions":[{"id":54,"description":"Gib die Personennummer, den Namen und die Telefonnummer der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Jupiter teilgenommen haben!","display_sequence":"A","result":{"columns":["persNr","name","telefon"],"values":[["121017-0004","Giulia Brunner","+41 76 901 23 45"],["121017-0005","Thomas Dubois","+41 77 012 34 56"],["121017-0002","Peter Müller","+41 78 789 01 23"],["121017-0006","Daniel Rochat","+41 78 123 45 67"],["121017-0003","Claire Steiner","+41 79 890 12 34"],["121017-0008","Andrea Huber","+41 76 345 67 89"],["131017-0051","Pascal Baumann","+41 78 901 23 45"],["121117-0041","Pascal Conti","+41 76 789 01 23"],["121018-0040","Chiara Weber","+41 79 678 90 12"],["131017-0053","Marco Schmid","+41 78 250 28 55"]]}},{"id":55,"description":"Gib die Personennummer, den Namen und den Ort der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Orion teilgenommen haben!","display_sequence":"B","result":{"columns":["persNr","name","ort"],"values":[["121017-0002","Peter Müller","Bern"],["121017-0005","Thomas Dubois","Basel"],["121017-0006","Daniel Rochat","Bern"],["121017-0007","Monika Frei","Bern"],["121017-0008","Andrea Huber","Rapperswil"],["131017-0050","Jean Richter","Basel"],["121017-0009","Pascal Baumann","Basel"],["121017-0010","Isabelle Haller","Luzern"],["131017-0051","Pascal Baumann","Basel"]]}},{"id":56,"description":"Gib die Personennummer, den Namen und die Telefonnummer der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Tellus teilgenommen haben!","display_sequence":"C","result":{"columns":["persNr","name","telefon"],"values":[["121017-0001","Marco Schmid","+41 77 678 90 12"],["121017-0003","Claire Steiner","+41 79 890 12 34"],["121017-0008","Andrea Huber","+41 76 345 67 89"],["121017-0009","Pascal Baumann","+41 77 456 78 90"],["121017-0010","Isabelle Haller","+41 78 567 89 01"],["131017-0051","Pascal Baumann","+41 78 901 23 45"],["121017-0004","Giulia Brunner","+41 76 901 23 45"],["121017-0005","Thomas Dubois","+41 77 012 34 56"],["121017-0007","Monika Frei","+41 79 234 56 78"]]}},{"id":57,"description":"Gib die Personennummer, den Namen und den Ort der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Sirius teilgenommen haben!","display_sequence":"D","result":{"columns":["persNr","name","ort"],"values":[["121017-0001","Marco Schmid","Winterthur"],["121017-0002","Peter Müller","Bern"],["121017-0003","Claire Steiner","Winterthur"],["121017-0010","Isabelle Haller","Luzern"],["121017-0007","Monika Frei","Bern"],["121017-0006","Daniel Rochat","Bern"],["121017-0004","Giulia Brunner","Bern"],["121018-0040","Chiara Weber","Zürich"],["121117-0041","Pascal Conti","Zürich"],["131017-0052","Thomas Dubois","Basel"]]}},{"id":58,"description":"Gib den Namen, Strasse, den Ort und die Telefonnummer der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Jupiter teilgenommen haben!","display_sequence":"E","result":{"columns":["name","strasse","ort","telefon"],"values":[["Giulia Brunner","Schulstrasse 1","Bern","+41 76 901 23 45"],["Thomas Dubois","Birkenweg 3","Basel","+41 77 012 34 56"],["Peter Müller","Alte Landstrasse 3","Bern","+41 78 789 01 23"],["Daniel Rochat","Eichtalstrasse 2","Bern","+41 78 123 45 67"],["Claire Steiner","Kirchgasse 4","Winterthur","+41 79 890 12 34"],["Andrea Huber","St. Jakobstrasse 112","Rapperswil","+41 76 345 67 89"],["Pascal Baumann","Birkenweg 12","Basel","+41 78 901 23 45"],["Pascal Conti","Rosengartenstrasse 15b","Zürich","+41 76 789 01 23"],["Chiara Weber","Industriestrasse 44","Zürich","+41 79 678 90 12"],["Marco Schmid","Dorfstrasse 63","Luzern","+41 78 250 28 55"]]}},{"id":59,"description":"Gib den Namen, Strasse, die Postleitzahl und den Ort der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Orion teilgenommen haben!","display_sequence":"F","result":{"columns":["name","strasse","plz","ort"],"values":[["Peter Müller","Alte Landstrasse 3","3006","Bern"],["Thomas Dubois","Birkenweg 3","4051","Basel"],["Daniel Rochat","Eichtalstrasse 2","3007","Bern"],["Monika Frei","Eichtalstrasse 24","3006","Bern"],["Andrea Huber","St. Jakobstrasse 112","8640","Rapperswil"],["Jean Richter","Abendrain 4","4051","Basel"],["Pascal Baumann","Auenweg 5","4051","Basel"],["Isabelle Haller","Lillgatan 3","6003","Luzern"],["Pascal Baumann","Birkenweg 12","4051","Basel"]]}},{"id":60,"description":"Gib den Namen, Strasse, den Ort und die Telefonnummer der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Tellus teilgenommen haben!","display_sequence":"G","result":{"columns":["name","strasse","ort","telefon"],"values":[["Marco Schmid","Burgstrasse 6","Winterthur","+41 77 678 90 12"],["Claire Steiner","Kirchgasse 4","Winterthur","+41 79 890 12 34"],["Andrea Huber","St. Jakobstrasse 112","Rapperswil","+41 76 345 67 89"],["Pascal Baumann","Auenweg 5","Basel","+41 77 456 78 90"],["Isabelle Haller","Lillgatan 3","Luzern","+41 78 567 89 01"],["Pascal Baumann","Birkenweg 12","Basel","+41 78 901 23 45"],["Giulia Brunner","Schulstrasse 1","Bern","+41 76 901 23 45"],["Thomas Dubois","Birkenweg 3","Basel","+41 77 012 34 56"],["Monika Frei","Eichtalstrasse 24","Bern","+41 79 234 56 78"]]}},{"id":61,"description":"Gib den Namen, Strasse, die Postleitzahl und den Ort der Studierenden aus, die an irgendeiner Kursdurchführung im Seminaraum Sirius teilgenommen haben!","display_sequence":"H","result":{"columns":["name","strasse","plz","ort"],"values":[["Marco Schmid","Burgstrasse 6","8401","Winterthur"],["Peter Müller","Alte Landstrasse 3","3006","Bern"],["Claire Steiner","Kirchgasse 4","8404","Winterthur"],["Isabelle Haller","Lillgatan 3","6003","Luzern"],["Monika Frei","Eichtalstrasse 24","3006","Bern"],["Daniel Rochat","Eichtalstrasse 2","3007","Bern"],["Giulia Brunner","Schulstrasse 1","3004","Bern"],["Chiara Weber","Industriestrasse 44","8001","Zürich"],["Pascal Conti","Rosengartenstrasse 15b","8002","Zürich"],["Thomas Dubois","Birkenweg 1","4051","Basel"]]}}]},{"category_id":8,"display_number":8,"questions":[{"id":62,"description":"Gib die Anzahl der Kursdurchführungen aus, an denen jeder Student teilgenommen hat! Zeige die Personennummer des Studierenden, den Namen des Studierenden und die Anzahl!","display_sequence":"A","result":{"columns":["persNr","name","anzahl"],"values":[["111017-0001","Lukas Meier",0],["121017-0001","Marco Schmid",4],["121017-0002","Peter Müller",4],["121017-0003","Claire Steiner",5],["121017-0004","Giulia Brunner",4],["121017-0005","Thomas Dubois",5],["121017-0006","Daniel Rochat",6],["121017-0007","Monika Frei",4],["121017-0008","Andrea Huber",6],["121017-0009","Pascal Baumann",3],["121017-0010","Isabelle Haller",5],["121018-0040","Chiara Weber",3],["121117-0041","Pascal Conti",3],["131017-0050","Jean Richter",1],["131017-0051","Pascal Baumann",3],["131017-0052","Thomas Dubois",1],["131017-0053","Marco Schmid",1]]},"alternative_results":[{"columns":["persNr","name","anzahl"],"values":[["121017-0001","Marco Schmid",4],["121017-0002","Peter Müller",4],["121017-0003","Claire Steiner",5],["121017-0004","Giulia Brunner",4],["121017-0005","Thomas Dubois",5],["121017-0006","Daniel Rochat",6],["121017-0007","Monika Frei",4],["121017-0008","Andrea Huber",6],["121017-0009","Pascal Baumann",3],["121017-0010","Isabelle Haller",5],["121018-0040","Chiara Weber",3],["121117-0041","Pascal Conti",3],["131017-0050","Jean Richter",1],["131017-0051","Pascal Baumann",3],["131017-0052","Thomas Dubois",1],["131017-0053","Marco Schmid",1]]}]},{"id":63,"description":"Gib die Anzahl der Kursdurchführungen aus, für die jeder Seminarraum verwendet wurde! Zeige den Namen des Seminarraums, die Kapazität des Seminarraums und die Anzahl!","display_sequence":"B","result":{"columns":["name","anzahlPlaetze","anzahl"],"values":[["Jupiter",12,6],["Orion",24,3],["Sirius",16,4],["Tellus",32,3],["Saturnus",24,3]]},"alternative_results":[{"columns":["name","anzahlPlaetze","anzahl"],"values":[["Jupiter",12,6],["Orion",24,3],["Sirius",16,4],["Tellus",32,3],["Saturnus",24,3]]}]},{"id":64,"description":"Gib die Anzahl der Kursdurchführungen aus, die jedes Modul hatte! Zeige das Kürzel des Moduls, den Namen des Moduls und die Anzahl!","display_sequence":"C","result":{"columns":["kuerzel","name","anzahl"],"values":[["DBM1","Datenbankmanagement 1",4],["Java1","Java-Grundkurs",5],["Java2","Java-Fortsetzungskurs",3],["LDBD","Logisches Datenbank-Design",3],["Log1","Logik",3],["PDBD","Physisches Datenbank-Design",1]]},"alternative_results":[{"columns":["kuerzel","name","anzahl"],"values":[["DBM1","Datenbankmanagement 1",4],["Java1","Java-Grundkurs",5],["Java2","Java-Fortsetzungskurs",3],["LDBD","Logisches Datenbank-Design",3],["Log1","Logik",3],["PDBD","Physisches Datenbank-Design",1]]}]},{"id":65,"description":"Gib die Anzahl der Kursdurchführungen aus, die jeder Dozent gehalten hat! Zeige die Personennummer des Dozenten, den Namen des Dozenten und die Anzahl!","display_sequence":"D","result":{"columns":["persNr","name","anzahl"],"values":[["111017-0001","Lukas Meier",0],["111017-0002","Marco Rossi",6],["111017-0003","Jean Dupont",3],["111017-0004","Sophie Keller",4],["111017-0005","Anna Bianchi",4],["131017-0050","Jean Richter",2]]},"alternative_results":[{"columns":["persNr","name","anzahl"],"values":[["111017-0002","Marco Rossi",6],["111017-0003","Jean Dupont",3],["111017-0004","Sophie Keller",4],["111017-0005","Anna Bianchi",4],["131017-0050","Jean Richter",2]]}]},{"id":66,"description":"Gib die Anzahl der teilnehmenden Studierenden für jede Kursdurchführung aus! Zeige Modulkürzel und Modulname der Kursdurchführung, Startdatum der Kursdurchführung und die Anzahl!","display_sequence":"E","result":{"columns":["modulkuerzel","name","startdatum","anzahl"],"values":[["DBM1","Datenbankmanagement 1","2008-04-02T00:00:00.000Z",4],["DBM1","Datenbankmanagement 1","2009-01-28T00:00:00.000Z",3],["DBM1","Datenbankmanagement 1","2010-02-15T00:00:00.000Z",3],["DBM1","Datenbankmanagement 1","2010-09-22T00:00:00.000Z",4],["Java1","Java-Grundkurs","2008-03-06T00:00:00.000Z",6],["Java1","Java-Grundkurs","2008-05-06T00:00:00.000Z",2],["Java1","Java-Grundkurs","2008-09-02T00:00:00.000Z",2],["Java1","Java-Grundkurs","2010-05-01T00:00:00.000Z",3],["Java1","Java-Grundkurs","2011-05-01T00:00:00.000Z",0],["Java2","Java-Fortsetzungskurs","2008-04-16T00:00:00.000Z",4],["Java2","Java-Fortsetzungskurs","2009-01-22T00:00:00.000Z",4],["Java2","Java-Fortsetzungskurs","2010-04-11T00:00:00.000Z",4],["LDBD","Logisches Datenbank-Design","2008-05-06T00:00:00.000Z",2],["LDBD","Logisches Datenbank-Design","2008-09-02T00:00:00.000Z",3],["LDBD","Logisches Datenbank-Design","2010-09-24T00:00:00.000Z",3],["Log1","Logik","2008-04-16T00:00:00.000Z",2],["Log1","Logik","2009-09-17T00:00:00.000Z",2],["Log1","Logik","2010-05-01T00:00:00.000Z",4],["PDBD","Physisches Datenbank-Design","2008-05-09T00:00:00.000Z",3]]},"alternative_results":[{"columns":["modulkuerzel","name","startdatum","anzahl"],"values":[["DBM1","Datenbankmanagement 1","2008-04-02T00:00:00.000Z",4],["DBM1","Datenbankmanagement 1","2009-01-28T00:00:00.000Z",3],["DBM1","Datenbankmanagement 1","2010-02-15T00:00:00.000Z",3],["DBM1","Datenbankmanagement 1","2010-09-22T00:00:00.000Z",4],["Java1","Java-Grundkurs","2008-03-06T00:00:00.000Z",6],["Java1","Java-Grundkurs","2008-05-06T00:00:00.000Z",2],["Java1","Java-Grundkurs","2008-09-02T00:00:00.000Z",2],["Java1","Java-Grundkurs","2010-05-01T00:00:00.000Z",3],["Java2","Java-Fortsetzungskurs","2008-04-16T00:00:00.000Z",4],["Java2","Java-Fortsetzungskurs","2009-01-22T00:00:00.000Z",4],["Java2","Java-Fortsetzungskurs","2010-04-11T00:00:00.000Z",4],["LDBD","Logisches Datenbank-Design","2008-05-06T00:00:00.000Z",2],["LDBD","Logisches Datenbank-Design","2008-09-02T00:00:00.000Z",3],["LDBD","Logisches Datenbank-Design","2010-09-24T00:00:00.000Z",3],["Log1","Logik","2008-04-16T00:00:00.000Z",2],["Log1","Logik","2009-09-17T00:00:00.000Z",2],["Log1","Logik","2010-05-01T00:00:00.000Z",4],["PDBD","Physisches Datenbank-Design","2008-05-09T00:00:00.000Z",3]]}]}]},{"category_id":9,"display_number":9,"questions":[{"id":67,"description":"I. Erstelle eine Sicht, die Personalnummer, den Namen und die Telefonnummer sowie die Anzahl der Kursdurchführungen anzeigt, die jeder Dozent gehalten hat! II. Gib dann die Personalnummer, den Namen und die Telefonnummer des Dozenten aus, der die meisten Kursdurchführungen gehalten hat!","display_sequence":"A","result":{"columns":["persNr","name","telefon"],"values":[["111017-0002","Marco Rossi","+41 77 234 56 78"]]}},{"id":68,"description":"I. Erstelle eine Sicht, die Personalnummer, den Namen und die Telefonnummer sowie die Anzahl der Kursdurchführungen anzeigt, die jeder Student besucht hat! II. Gib dann die Personalnummer, den Namen und die Telefonnummer der Studierenden aus, die die meisten Kursdurchführungen besucht haben!","display_sequence":"B","result":{"columns":["persNr","name","telefon"],"values":[["121017-0006","Daniel Rochat","+41 78 123 45 67"],["121017-0008","Andrea Huber","+41 76 345 67 89"]]}},{"id":69,"description":"I. Erstelle eine Sicht, die den Kurscode, den Namen, die Dauer und die Anzahl der Kursdurchführung pro Kurs anzeigt! II. Gib dann die Kurscode, den Namen und die Dauer des Kurses mit den meisten Unterrichtseinheiten aus!","display_sequence":"C","result":{"columns":["kuerzel","name","kurstage"],"values":[["Java1","Java-Grundkurs",5]]}},{"id":70,"description":"I. Erstelle eine Sicht, die das Modulkürzel, den Namen, die Anzahl Kurstage sowie die Anzahl der Kursdurchführungen pro Modul anzeigt! II. Gib dann den Namen und die Kapazität des Raums aus, in dem die meisten Kursdurchführungen stattgefunden haben!","display_sequence":"D","result":{"columns":["name","anzahlPlaetze"],"values":[["Jupiter",12]]}},{"id":71,"description":"I. Erstelle eine Sicht, die den Kurscode, den Kursnamen und das Startdatum sowie die Teilnehmerzahl pro Kursdurchführung anzeigt! II. Gib dann den Kurscode, den Kursnamen und das Startdatum des Kurstermins mit den meisten Teilnehmern aus!","display_sequence":"E","result":{"columns":["modulkuerzel","name","startdatum"],"values":[["Java1","Java-Grundkurs","2008-03-06T00:00:00.000Z"]]}}]},{"category_id":10,"display_number":10,"questions":[{"id":72,"description":"Gib die Personennummer, den Namen und den Ort der Studierenden aus, die an mindestens drei VERSCHIEDENEN Modulen teilgenommen haben!","display_sequence":"A","result":{"columns":["persNr","name","ort"],"values":[["121017-0001","Marco Schmid","Winterthur"],["121017-0002","Peter Müller","Bern"],["121017-0003","Claire Steiner","Winterthur"],["121017-0004","Giulia Brunner","Bern"],["121017-0005","Thomas Dubois","Basel"],["121017-0006","Daniel Rochat","Bern"],["121017-0007","Monika Frei","Bern"],["121017-0008","Andrea Huber","Rapperswil"],["121017-0010","Isabelle Haller","Luzern"],["121018-0040","Chiara Weber","Zürich"],["121117-0041","Pascal Conti","Zürich"],["131017-0051","Pascal Baumann","Basel"]]}},{"id":73,"description":"Gib die Personennummer, den Namen und die Telefonnummer der Dozierenden aus, die mindestens drei VERSCHIEDENE Module gehalten haben!","display_sequence":"B","result":{"columns":["persNr","name","telefon"],"values":[["111017-0002","Marco Rossi","+41 77 234 56 78"],["111017-0004","Sophie Keller","+41 79 456 78 90"],["111017-0005","Anna Bianchi","+41 76 567 89 01"]]}},{"id":74,"description":"Gib die Personennummer, den Namen und den Ort der Dozierenden aus, die Kursdurchführungen in mindestens drei VERSCHIEDENEN Seminarräumen gehalten haben!","display_sequence":"C","result":{"columns":["persNr","name","ort"],"values":[["111017-0002","Marco Rossi","St. Gallen"],["111017-0003","Jean Dupont","Zürich"],["111017-0004","Sophie Keller","Luzern"]]}},{"id":75,"description":"Gib Namen und Kapazität der Seminarräume aus, die von mindestens drei VERSCHIEDENEN Dozenten verwendet wurden!","display_sequence":"D","result":{"columns":["name","anzahlPlaetze"],"values":[["Jupiter",12],["Sirius",16],["Tellus",32],["Saturnus",24]]}},{"id":76,"description":"Gib Namen und Kapazität der Seminarräume aus, die für Kursdurchführungen von mindestens drei VERSCHIEDENEN Modulen verwendet wurden!","display_sequence":"E","result":{"columns":["name","anzahlPlaetze"],"values":[["Jupiter",12]]}},{"id":77,"description":"Gib Code, Namen und Preis der Module aus, die in mindestens drei VERSCHIEDENEN Seminarräumen gehalten wurden!","display_sequence":"F","result":{"columns":["kuerzel","name","preis"],"values":[["Java1","Java-Grundkurs",6700],["LDBD","Logisches Datenbank-Design",6000]]}},{"id":78,"description":"Gib Code, Namen und Preis der Module aus, die von mindestens drei VERSCHIEDENEN Dozenten gehalten wurden!","display_sequence":"G","result":{"columns":["kuerzel","name","preis"],"values":[["DBM1","Datenbankmanagement 1",2800],["Log1","Logik",4500]]}}]},{"category_id":11,"display_number":11,"questions":[{"id":79,"description":"Gib Namen und Ort der Personen aus, die keine Dozenten sind!","display_sequence":"A","result":{"columns":["name","ort"],"values":[["Marco Schmid","Winterthur"],["Peter Müller","Bern"],["Claire Steiner","Winterthur"],["Giulia Brunner","Bern"],["Thomas Dubois","Basel"],["Daniel Rochat","Bern"],["Monika Frei","Bern"],["Andrea Huber","Rapperswil"],["Pascal Baumann","Basel"],["Isabelle Haller","Luzern"],["Chiara Weber","Zürich"],["Pascal Conti","Zürich"],["Pascal Baumann","Basel"],["Thomas Dubois","Basel"],["Marco Schmid","Luzern"],["Monika Huber","Basel"],["Andrea Haller","Zürich"],["Isabelle Conti","Winterthur"],["Daniel Brunner","Lugano"]]}},{"id":80,"description":"Gib Namen und Ort der Studierenden aus, die an keiner Kursdurchführung mit Startdatum im Jahr 2010 teilgenommen haben!","display_sequence":"B","result":{"columns":["name","ort"],"values":[["Lukas Meier","Lugano"],["Marco Schmid","Winterthur"],["Peter Müller","Bern"],["Pascal Baumann","Basel"],["Jean Richter","Basel"],["Pascal Baumann","Basel"]]}},{"id":81,"description":"Gib Namen und Ort der Studierenden aus, die das Modul mit dem Kürzel Java1 nicht besucht haben!","display_sequence":"C","result":{"columns":["name","ort"],"values":[["Lukas Meier","Lugano"],["Giulia Brunner","Bern"],["Thomas Dubois","Basel"],["Chiara Weber","Zürich"],["Pascal Conti","Zürich"],["Jean Richter","Basel"],["Thomas Dubois","Basel"],["Marco Schmid","Luzern"]]}},{"id":82,"description":"Gib Namen und Ort der Studierenden aus, die das Modul mit dem Kürzel Log1 nicht besucht haben!","display_sequence":"D","result":{"columns":["name","ort"],"values":[["Lukas Meier","Lugano"],["Marco Schmid","Winterthur"],["Peter Müller","Bern"],["Claire Steiner","Winterthur"],["Daniel Rochat","Bern"],["Monika Frei","Bern"],["Pascal Baumann","Basel"],["Isabelle Haller","Luzern"],["Jean Richter","Basel"],["Pascal Baumann","Basel"],["Thomas Dubois","Basel"]]}}]},{"category_id":12,"display_number":12,"questions":[{"id":83,"description":"Gib Personennummer, Namen, Büro und Telefonnummer der Dozierenden aus, die niemals eine Kursdurchführung für das Modul \"Java-Fortsetzungskurs\" gehalten haben!","display_sequence":"A","result":{"columns":["persNr","name","bueroNr","telefon"],"values":[["111017-0001","Lukas Meier",634,"+41 76 123 45 67"],["111017-0003","Jean Dupont",603,"+41 78 345 67 89"],["111017-0004","Sophie Keller",605,"+41 79 456 78 90"],["111017-0005","Anna Bianchi",622,"+41 76 567 89 01"]]}},{"id":84,"description":"Gib Personennummer, Namen und Ort der Studierenden mit Nachteilsausgleich aus, die das Modul \"Logisches Datenbank-Design\" nicht besucht haben!","display_sequence":"B","result":{"columns":["persNr","name","ort"],"values":[["121017-0002","Peter Müller","Bern"],["121017-0010","Isabelle Haller","Luzern"],["131017-0052","Thomas Dubois","Basel"]]}},{"id":85,"description":"Gib Namen und Kapazität der Seminarräume aus, die niemals für eine Kursdurchführung des Moduls \"Logisches Datenbank-Design\" verwendet wurden!","display_sequence":"C","result":{"columns":["name","anzahlPlaetze"],"values":[["Jupiter",12],["Tellus",32]]}},{"id":86,"description":"Gib Namen und Kapazität des Seminarraumes aus, der niemals vom Dozenten Marco Rossi verwendet wurden!","display_sequence":"D","result":{"columns":["name","anzahlPlaetze"],"values":[["Sirius",16]]}}]},{"category_id":13,"display_number":13,"questions":[{"id":87,"description":"Gib Personennummer, Namen und Telefonnummer der Studierenden aus, die das Modul \"Physisches Datenbank-Design\" oder das Modul \"Logisches Datenbank-Design\" (oder beide) besucht haben!","display_sequence":"A","result":{"columns":["persNr","name","telefon"],"values":[["121017-0001","Marco Schmid","+41 77 678 90 12"],["121017-0003","Claire Steiner","+41 79 890 12 34"],["121017-0006","Daniel Rochat","+41 78 123 45 67"],["121017-0007","Monika Frei","+41 79 234 56 78"],["121017-0008","Andrea Huber","+41 76 345 67 89"],["121018-0040","Chiara Weber","+41 79 678 90 12"],["121117-0041","Pascal Conti","+41 76 789 01 23"],["131017-0050","Jean Richter","+41 77 890 12 33"]]}},{"id":88,"description":"Gib Personennummer, Namen und Ort der Studierenden aus, die an Kursdurchführungen im Seminarraum Orion oder im Seminarraum Jupiter (oder in beiden) teilgenommen haben!","display_sequence":"B","result":{"columns":["persNr","name","ort"],"values":[["121017-0002","Peter Müller","Bern"],["121017-0003","Claire Steiner","Winterthur"],["121017-0004","Giulia Brunner","Bern"],["121017-0005","Thomas Dubois","Basel"],["121017-0006","Daniel Rochat","Bern"],["121017-0007","Monika Frei","Bern"],["121017-0008","Andrea Huber","Rapperswil"],["121017-0009","Pascal Baumann","Basel"],["121017-0010","Isabelle Haller","Luzern"],["121018-0040","Chiara Weber","Zürich"],["121117-0041","Pascal Conti","Zürich"],["131017-0050","Jean Richter","Basel"],["131017-0051","Pascal Baumann","Basel"],["131017-0053","Marco Schmid","Luzern"]]}},{"id":89,"description":"Gib Personennummer, Namen und Telefonnummer der Dozierenden aus, die das Modul \"Logik\" oder das Modul \"Datenbankmanagement 1\" (oder beide) gehalten haben!","display_sequence":"C","result":{"columns":["persNr","name","telefon"],"values":[["111017-0002","Marco Rossi","+41 77 234 56 78"],["111017-0003","Jean Dupont","+41 78 345 67 89"],["111017-0004","Sophie Keller","+41 79 456 78 90"],["111017-0005","Anna Bianchi","+41 76 567 89 01"],["131017-0050","Jean Richter","+41 77 890 12 33"]]}},{"id":90,"description":"Gib Namen und Kapazität der Seminarräume aus, die vom Dozenten Marco Rossi oder vom Dozenten Jean Dupont (oder von beiden) verwendet wurden!","display_sequence":"D","result":{"columns":["name","anzahlPlaetze"],"values":[["Jupiter",12],["Orion",24],["Saturnus",24],["Tellus",32]]}},{"id":91,"description":"Gib Namen und Kapazität der Seminarräume aus, die für das Modul \"Logik\" oder für das Modul \"Java-Fortsetzungskurs\" (oder für beide) verwendet wurden!","display_sequence":"E","result":{"columns":["name","anzahlPlaetze"],"values":[["Jupiter",12],["Orion",24],["Tellus",32]]}}]},{"category_id":14,"display_number":14,"questions":[{"id":92,"description":"Gib Personennummer, Namen und Ort der Studierenden aus, die sowohl das Modul \"Physisches Datenbank-Design\" als auch das Modul \"Logisches Datenbank-Design\" besucht haben!","display_sequence":"A","result":{"columns":["persNr","name","ort"],"values":[["121017-0006","Daniel Rochat","Bern"],["121017-0008","Andrea Huber","Rapperswil"]]}},{"id":93,"description":"Gib Personennummer, Namen und Telefonnummer der Studierenden aus, die an Kursdurchführungen sowohl im Seminarraum Orion als auch im Seminarraum Jupiter teilgenommen haben!","display_sequence":"B","result":{"columns":["persNr","name","telefon"],"values":[["121017-0002","Peter Müller","+41 78 789 01 23"],["121017-0005","Thomas Dubois","+41 77 012 34 56"],["121017-0006","Daniel Rochat","+41 78 123 45 67"],["121017-0008","Andrea Huber","+41 76 345 67 89"],["131017-0051","Pascal Baumann","+41 78 901 23 45"]]}},{"id":94,"description":"Gib Personennummer, Namen und Büro der Dozierenden aus, die sowohl das Modul \"Logisches Datenbank-Design\" als auch das Modul \"Datenbankmanagement 1\" gehalten haben!","display_sequence":"C","result":{"columns":["persNr","name","bueroNr"],"values":[["111017-0004","Sophie Keller",605],["111017-0005","Anna Bianchi",622]]}},{"id":95,"description":"Gib Namen und Kapazität der Seminarräume aus, die sowohl vom Dozenten Sophie Keller als auch vom Dozenten Marco Rossi verwendet wurden!","display_sequence":"D","result":{"columns":["name","anzahlPlaetze"],"values":[["Jupiter",12],["Orion",24],["Saturnus",24]]}},{"id":96,"description":"Gib Namen und Kapazität der Seminarräume aus, die sowohl für das Modul \"Logik\" als auch für das Modul \"Java-Grundkurs\" verwendet wurden!","display_sequence":"E","result":{"columns":["name","anzahlPlaetze"],"values":[["Jupiter",12]]}},{"id":97,"description":"Gib Personennummer, Namen, Büro und Telefonnummer der Dozierenden aus, die Kursdurchführungen sowohl im Seminarraum Jupiter als auch im Seminarraum Sirius gehalten haben!","display_sequence":"F","result":{"columns":["persNr","name","bueroNr","telefon"],"values":[["111017-0004","Sophie Keller",605,"+41 79 456 78 90"],["111017-0005","Anna Bianchi",622,"+41 76 567 89 01"]]}}]},{"category_id":15,"display_number":15,"questions":[{"id":98,"description":"Gib Personennummer, Namen und Telefonnummer der Studierenden aus, die Kurse bei allen Lehrkräften aus Zürich besucht haben!","display_sequence":"A","result":{"columns":["persNr","name","telefon"],"values":[["121017-0001","Marco Schmid","+41 77 678 90 12"],["121017-0005","Thomas Dubois","+41 77 012 34 56"],["121017-0007","Monika Frei","+41 79 234 56 78"],["121017-0004","Giulia Brunner","+41 76 901 23 45"]]}},{"id":99,"description":"Gib Namen und Kapazität der Seminarräume aus, die von sämtlichen Dozenten aus Zürich verwendet wurden!","display_sequence":"B","result":{"columns":["name","anzahlPlaetze"],"values":[["Jupiter",12]]}},{"id":100,"description":"Gib Namen und Kapazität der Seminarräume aus, die für sämtliche Module verwendet wurden, die weniger als CHF 5000 kosten!","display_sequence":"C","result":{"columns":["name","anzahlPlaetze"],"values":[["Jupiter",12]]}},{"id":101,"description":"Gib Personennummer, Namen und Telefonnummer der Dozierenden aus, die Kursdurchführungen sämtlicher Module mit höchstens drei Kurstagen Dauer gehalten haben!","display_sequence":"D","result":{"columns":["persNr","name","telefon"],"values":[["111017-0005","Anna Bianchi","+41 76 567 89 01"]]}}]},{"category_id":16,"display_number":16,"questions":[{"id":102,"description":"Gib für jede Kursdurchführung die Anzahl der Studierenden aus Bern aus! Zeige Modulkürzel, Startdatum und Anzahl der Studierenden. Auch Kursdurchführungen ohne Studierende aus Bern sollen im Ergebnis enthalten sein (mit 0 in der Anzahlspalte)!","display_sequence":"A","result":{"columns":["modulkuerzel","startdatum","anzahl"],"values":[["DBM1","2008-04-02T00:00:00.000Z",1],["DBM1","2009-01-28T00:00:00.000Z",0],["DBM1","2010-02-15T00:00:00.000Z",1],["DBM1","2010-09-22T00:00:00.000Z",1],["Java1","2008-03-06T00:00:00.000Z",0],["Java1","2008-05-06T00:00:00.000Z",2],["Java1","2008-09-02T00:00:00.000Z",0],["Java1","2010-05-01T00:00:00.000Z",2],["Java1","2011-05-01T00:00:00.000Z",0],["Java2","2008-04-16T00:00:00.000Z",3],["Java2","2009-01-22T00:00:00.000Z",1],["Java2","2010-04-11T00:00:00.000Z",2],["LDBD","2008-05-06T00:00:00.000Z",1],["LDBD","2008-09-02T00:00:00.000Z",1],["LDBD","2010-09-24T00:00:00.000Z",0],["Log1","2008-04-16T00:00:00.000Z",1],["Log1","2009-09-17T00:00:00.000Z",1],["Log1","2010-05-01T00:00:00.000Z",0],["PDBD","2008-05-09T00:00:00.000Z",1]]}},{"id":103,"description":"Gib die Anzahl der Male aus, die jeder Student am Modul \"Logisches Datenbank-Design\" teilgenommen hat! Zeige die Personennummer, den Namen und den Ort des Studierenden sowie die Anzahl!","display_sequence":"B","result":{"columns":["persNr","name","ort","anzahl"],"values":[["111017-0001","Lukas Meier","Lugano",0],["121017-0001","Marco Schmid","Winterthur",1],["121017-0002","Peter Müller","Bern",0],["121017-0003","Claire Steiner","Winterthur",0],["121017-0004","Giulia Brunner","Bern",0],["121017-0005","Thomas Dubois","Basel",0],["121017-0006","Daniel Rochat","Bern",1],["121017-0007","Monika Frei","Bern",1],["121017-0008","Andrea Huber","Rapperswil",2],["121017-0009","Pascal Baumann","Basel",0],["121017-0010","Isabelle Haller","Luzern",0],["121018-0040","Chiara Weber","Zürich",1],["121117-0041","Pascal Conti","Zürich",1],["131017-0050","Jean Richter","Basel",1],["131017-0051","Pascal Baumann","Basel",0],["131017-0052","Thomas Dubois","Basel",0],["131017-0053","Marco Schmid","Luzern",0]]}},{"id":104,"description":"Gib die Anzahl der Male aus, die jeder Student am Modul \"Java-Grundkurs\" teilgenommen hat! Zeige die Personennummer, den Namen und den Ort des Studierenden sowie die Anzahl!","display_sequence":"C","result":{"columns":["persNr","name","ort","anzahl"],"values":[["111017-0001","Lukas Meier","Lugano",0],["121017-0001","Marco Schmid","Winterthur",2],["121017-0002","Peter Müller","Bern",1],["121017-0003","Claire Steiner","Winterthur",1],["121017-0004","Giulia Brunner","Bern",0],["121017-0005","Thomas Dubois","Basel",0],["121017-0006","Daniel Rochat","Bern",2],["121017-0007","Monika Frei","Bern",1],["121017-0008","Andrea Huber","Rapperswil",2],["121017-0009","Pascal Baumann","Basel",2],["121017-0010","Isabelle Haller","Luzern",1],["121018-0040","Chiara Weber","Zürich",0],["121117-0041","Pascal Conti","Zürich",0],["131017-0050","Jean Richter","Basel",0],["131017-0051","Pascal Baumann","Basel",1],["131017-0052","Thomas Dubois","Basel",0],["131017-0053","Marco Schmid","Luzern",0]]}},{"id":105,"description":"Gib die Anzahl der Male aus, die jeder Dozent das Modul \"Java-Grundkurs\" gehalten hat! Zeige die Personennummer, den Namen, die Telefonnummer und das Büro des Dozenten sowie die Anzahll!","display_sequence":"D","result":{"columns":["persNr","name","telefon","bueroNr","anzahl"],"values":[["111017-0001","Lukas Meier","+41 76 123 45 67",634,0],["111017-0002","Marco Rossi","+41 77 234 56 78",604,3],["111017-0003","Jean Dupont","+41 78 345 67 89",603,2],["111017-0004","Sophie Keller","+41 79 456 78 90",605,0],["111017-0005","Anna Bianchi","+41 76 567 89 01",622,0],["131017-0050","Jean Richter","+41 77 890 12 33",558,0]]}},{"id":106,"description":"Gib die Anzahl der Kursdurchführungen aus, die jeder Dozent mit Start im Jahr 2010 gehalten hat! Zeige die Personennummer, den Namen, die Telefonnummer und das Büro des Dozenten sowie die Anzahl!","display_sequence":"E","result":{"columns":["persNr","name","telefon","bueroNr","anzahl"],"values":[["111017-0001","Lukas Meier","+41 76 123 45 67",634,0],["111017-0002","Marco Rossi","+41 77 234 56 78",604,1],["111017-0003","Jean Dupont","+41 78 345 67 89",603,1],["111017-0004","Sophie Keller","+41 79 456 78 90",605,2],["111017-0005","Anna Bianchi","+41 76 567 89 01",622,0],["131017-0050","Jean Richter","+41 77 890 12 33",558,2]]}},{"id":107,"description":"Gib für jeden Student die Anzahl der Kursdurchführungen mit Start im Jahr 2008 aus! Zeige die Personennummer, den Namen, die Telefonnummer und den Ort des Studierenden sowie die Anzahl!","display_sequence":"F","result":{"columns":["persNr","name","telefon","ort","anzahl"],"values":[["111017-0001","Lukas Meier","+41 76 123 45 67","Lugano",0],["121017-0001","Marco Schmid","+41 77 678 90 12","Winterthur",4],["121017-0002","Peter Müller","+41 78 789 01 23","Bern",3],["121017-0003","Claire Steiner","+41 79 890 12 34","Winterthur",3],["121017-0004","Giulia Brunner","+41 76 901 23 45","Bern",1],["121017-0005","Thomas Dubois","+41 77 012 34 56","Basel",2],["121017-0006","Daniel Rochat","+41 78 123 45 67","Bern",4],["121017-0007","Monika Frei","+41 79 234 56 78","Bern",2],["121017-0008","Andrea Huber","+41 76 345 67 89","Rapperswil",3],["121017-0009","Pascal Baumann","+41 77 456 78 90","Basel",2],["121017-0010","Isabelle Haller","+41 78 567 89 01","Luzern",2],["121018-0040","Chiara Weber","+41 79 678 90 12","Zürich",0],["121117-0041","Pascal Conti","+41 76 789 01 23","Zürich",0],["131017-0050","Jean Richter","+41 77 890 12 33","Basel",1],["131017-0051","Pascal Baumann","+41 78 901 23 45","Basel",1],["131017-0052","Thomas Dubois","+41 79 012 34 56","Basel",0],["131017-0053","Marco Schmid","+41 78 250 28 55","Luzern",0]]}}]},{"category_id":17,"display_number":17,"questions":[{"id":108,"description":"Gib Informationen über Kursdurchführungen aus, an denen kein Student aus Basel teilgenommen hat! Zeige Modulkürzel, Modulname, Startdatum, Namen des Seminarraums und Namen des Dozenten!","display_sequence":"A","result":{"columns":["modulkuerzel","name","startdatum","name","name"],"values":[["DBM1","Datenbankmanagement 1","2008-04-02T00:00:00.000Z","Sirius","Anna Bianchi"],["Java1","Java-Grundkurs","2008-05-06T00:00:00.000Z","Jupiter","Marco Rossi"],["LDBD","Logisches Datenbank-Design","2008-05-06T00:00:00.000Z","Sirius","Anna Bianchi"],["PDBD","Physisches Datenbank-Design","2008-05-09T00:00:00.000Z","Jupiter","Sophie Keller"],["Log1","Logik","2009-09-17T00:00:00.000Z","Jupiter","Anna Bianchi"],["DBM1","Datenbankmanagement 1","2010-02-15T00:00:00.000Z","Sirius","Sophie Keller"],["Java1","Java-Grundkurs","2010-05-01T00:00:00.000Z","Saturnus","Jean Dupont"],["LDBD","Logisches Datenbank-Design","2010-09-24T00:00:00.000Z","Saturnus","Sophie Keller"],["Java1","Java-Grundkurs","2011-05-01T00:00:00.000Z","Saturnus","Marco Rossi"]]}},{"id":109,"description":"Gib Informationen über Kursdurchführungen aus, an denen kein Student aus Bern teilgenommen hat! Zeige Modulkürzel, Modulname, Startdatum, Namen des Seminarraums und Namen des Dozenten!","display_sequence":"B","result":{"columns":["modulkuerzel","name","startdatum","name","name"],"values":[["Java1","Java-Grundkurs","2008-03-06T00:00:00.000Z","Tellus","Marco Rossi"],["Java1","Java-Grundkurs","2008-09-02T00:00:00.000Z","Tellus","Jean Dupont"],["DBM1","Datenbankmanagement 1","2009-01-28T00:00:00.000Z","Jupiter","Anna Bianchi"],["Log1","Logik","2010-05-01T00:00:00.000Z","Jupiter","Marco Rossi"],["LDBD","Logisches Datenbank-Design","2010-09-24T00:00:00.000Z","Saturnus","Sophie Keller"],["Java1","Java-Grundkurs","2011-05-01T00:00:00.000Z","Saturnus","Marco Rossi"]]}},{"id":110,"description":"Gib Informationen über Kursdurchführungen aus, an denen kein Student mit Nachteilsausgleich teilgenommen hat! Zeige Modulkürzel, Modulname, Startdatum, Namen des Seminarraums und Namen des Dozenten!","display_sequence":"C","result":{"columns":["modulkuerzel","name","startdatum","name","name"],"values":[["Log1","Logik","2008-04-16T00:00:00.000Z","Jupiter","Jean Dupont"],["LDBD","Logisches Datenbank-Design","2008-05-06T00:00:00.000Z","Sirius","Anna Bianchi"],["Java1","Java-Grundkurs","2008-09-02T00:00:00.000Z","Tellus","Jean Dupont"],["DBM1","Datenbankmanagement 1","2009-01-28T00:00:00.000Z","Jupiter","Anna Bianchi"],["Log1","Logik","2010-05-01T00:00:00.000Z","Jupiter","Marco Rossi"],["Java1","Java-Grundkurs","2011-05-01T00:00:00.000Z","Saturnus","Marco Rossi"]]}}]}]} \ No newline at end of file diff --git a/public/languages/en-pg/data.sql b/public/languages/en-pg/data.sql new file mode 100644 index 0000000..1fcd31d --- /dev/null +++ b/public/languages/en-pg/data.sql @@ -0,0 +1,145 @@ +CREATE TABLE Person (person_id TEXT NOT NULL, name TEXT NOT NULL, address TEXT NOT NULL, postal_code TEXT NOT NULL, city TEXT NOT NULL, phone TEXT NOT NULL, PRIMARY KEY (person_id)); +CREATE TABLE Room (id INTEGER NOT NULL, name TEXT NOT NULL, capacity INTEGER NOT NULL, PRIMARY KEY (id)); +CREATE UNIQUE INDEX rum_namn ON Room (name); +CREATE TABLE Student (person_id TEXT NOT NULL, has_disability BOOLEAN NOT NULL, CONSTRAINT STUDENT_PK PRIMARY KEY (person_id), CONSTRAINT Student_Person_FK FOREIGN KEY (person_id) REFERENCES Person (person_id) ON DELETE RESTRICT ON UPDATE CASCADE); +CREATE TABLE Teacher (person_id TEXT NOT NULL, office_room INTEGER NOT NULL, CONSTRAINT teacher_pk PRIMARY KEY (person_id), CONSTRAINT fk_teacher_person FOREIGN KEY (person_id) REFERENCES Person (person_id) ON DELETE RESTRICT ON UPDATE CASCADE); +CREATE TABLE Course (course_code TEXT NOT NULL, name TEXT NOT NULL, duration INTEGER NOT NULL, price INTEGER NOT NULL, description TEXT NOT NULL, PRIMARY KEY (course_code)); +CREATE UNIQUE INDEX kurs_ben ON Course (name); +CREATE TABLE CourseInstance (course TEXT NOT NULL, start_date DATE NOT NULL, teacher TEXT NOT NULL, room INTEGER NOT NULL, CONSTRAINT courseinstance_pk PRIMARY KEY (course, start_date), CONSTRAINT fk_courseinstance_course FOREIGN KEY (course) REFERENCES Course (course_code) ON DELETE RESTRICT ON UPDATE CASCADE, CONSTRAINT fk_courseinstance_teacher FOREIGN KEY (teacher) REFERENCES Teacher (person_id) ON DELETE RESTRICT ON UPDATE CASCADE, CONSTRAINT fk_courseinstance_room FOREIGN KEY (room) REFERENCES Room (id) ON DELETE RESTRICT ON UPDATE CASCADE); +CREATE TABLE Participation (student TEXT NOT NULL, course TEXT NOT NULL, start_date DATE NOT NULL, CONSTRAINT participation_pk PRIMARY KEY (course, start_date, student), CONSTRAINT fk_participation_courseinstance FOREIGN KEY (course, start_date) REFERENCES CourseInstance (course, start_date) ON DELETE RESTRICT ON UPDATE CASCADE, CONSTRAINT fk_participation_student FOREIGN KEY (student) REFERENCES Student (person_id) ON DELETE RESTRICT ON UPDATE CASCADE); +INSERT INTO Person VALUES ('EN-001', 'James Smith', 'Main Street 1', 'GU1 1AA', 'Guildford', '01234567890'); +INSERT INTO Person VALUES ('EN-002', 'John Brown', 'Oak Avenue 2', 'RG1 2AB', 'Reading', '01234567891'); +INSERT INTO Person VALUES ('EN-003', 'William Jones', 'Park Road 3', 'OX1 3AC', 'Oxford', '01234567892'); +INSERT INTO Person VALUES ('EN-004', 'Mary Wilson', 'High Street 4', 'CB2 4AD', 'Cambridge', '01234567893'); +INSERT INTO Person VALUES ('EN-005', 'Sarah Taylor', 'Mill Lane 5', 'BN1 5AE', 'Oxford', '01234567894'); +INSERT INTO Person VALUES ('EN-006', 'John Clark', 'Church Road 6', 'BS1 6AF', 'Brighton', '01234567895'); +INSERT INTO Person VALUES ('EN-007', 'Anne Hall', 'Elm Drive 3', 'YO1 7AG', 'Bristol', '01234567896'); +INSERT INTO Person VALUES ('EN-008', 'Emily Ford', 'River Road 4', 'BS2 8AH', 'Brighton', '01234567897'); +INSERT INTO Person VALUES ('EN-009', 'Robert Stone', 'Lake Drive 1', 'YO2 9AI', 'Bristol', '01234567898'); +INSERT INTO Person VALUES ('EN-010', 'David Wood', 'School Lane 3', 'BA1 1AJ', 'York', '01234567899'); +INSERT INTO Person VALUES ('EN-011', 'Susan Blair', 'Birch Way 2', 'YO3 2AK', 'Bristol', '01234567900'); +INSERT INTO Person VALUES ('EN-012', 'George Hunt', 'Birch Way 24', 'YO4 3AL', 'Bristol', '01234567901'); +INSERT INTO Person VALUES ('EN-013', 'Peter Grant', 'Hill Road 112', 'OX2 4AM', 'Bath', '01234567902'); +INSERT INTO Person VALUES ('EN-014', 'Jane Bell', 'Bridge Street 5', 'BA2 5AN', 'York', '01234567903'); +INSERT INTO Person VALUES ('EN-015', 'Laura Miles', 'Valley Road 3', 'CB3 6AO', 'Cambridge', '01234567904'); +INSERT INTO Person VALUES ('EN-016', 'Alice Cole', 'King Street 44', 'OX3 7AP', 'Oxford', '01234567905'); +INSERT INTO Person VALUES ('EN-017', 'Jane Palmer', 'Harbour Lane 15b', 'OX4 8AQ', 'Oxford', '01234567906'); +INSERT INTO Person VALUES ('EN-018', 'William White', 'Station Road 4', 'BA3 9AR', 'York', '01234567907'); +INSERT INTO Person VALUES ('EN-019', 'Jane Bell', 'School Lane 12', 'BA4 1AS', 'York', '01234567908'); +INSERT INTO Person VALUES ('EN-020', 'David Wood', 'School Lane 1', 'BA5 2AT', 'York', '01234567909'); +INSERT INTO Person VALUES ('EN-021', 'John Clark', 'High Street 63', 'CB4 3AU', 'Cambridge', '01234567910'); +INSERT INTO Person VALUES ('EN-022', 'George Grant', 'Lake Drive 14', 'YO5 4AV', 'York', '01234567911'); +INSERT INTO Person VALUES ('EN-023', 'Peter Miles', 'Birch Way 7', 'CB6 5AW', 'Oxford', '01234567912'); +INSERT INTO Person VALUES ('EN-024', 'Laura Palmer', 'Bridge Street 22', 'OX5 6AX', 'Brighton', '01234567913'); +INSERT INTO Person VALUES ('EN-025', 'Susan Stone', 'Church Road 3', 'BA6 7AY', 'Guildford', '01234567914'); +INSERT INTO Room VALUES (1, 'Jupiter', 12); +INSERT INTO Room VALUES (2, 'Orion', 24); +INSERT INTO Room VALUES (3, 'Sirius', 16); +INSERT INTO Room VALUES (4, 'Tellus', 32); +INSERT INTO Room VALUES (5, 'Saturn', 24); +INSERT INTO Student VALUES ('EN-001', FALSE); +INSERT INTO Student VALUES ('EN-006', FALSE); +INSERT INTO Student VALUES ('EN-007', TRUE); +INSERT INTO Student VALUES ('EN-008', FALSE); +INSERT INTO Student VALUES ('EN-009', FALSE); +INSERT INTO Student VALUES ('EN-010', FALSE); +INSERT INTO Student VALUES ('EN-011', TRUE); +INSERT INTO Student VALUES ('EN-012', FALSE); +INSERT INTO Student VALUES ('EN-013', FALSE); +INSERT INTO Student VALUES ('EN-014', FALSE); +INSERT INTO Student VALUES ('EN-015', TRUE); +INSERT INTO Student VALUES ('EN-016', FALSE); +INSERT INTO Student VALUES ('EN-017', TRUE); +INSERT INTO Student VALUES ('EN-018', FALSE); +INSERT INTO Student VALUES ('EN-019', FALSE); +INSERT INTO Student VALUES ('EN-020', TRUE); +INSERT INTO Student VALUES ('EN-021', FALSE); +INSERT INTO Teacher VALUES ('EN-001', 634); +INSERT INTO Teacher VALUES ('EN-002', 604); +INSERT INTO Teacher VALUES ('EN-003', 603); +INSERT INTO Teacher VALUES ('EN-004', 605); +INSERT INTO Teacher VALUES ('EN-005', 622); +INSERT INTO Teacher VALUES ('EN-018', 558); +INSERT INTO Course VALUES ('DBM1', 'Database Methodology', 2, 2800, 'DB basics, normalisation, modelling, SQL'); +INSERT INTO Course VALUES ('PDB', 'Physical Database Design', 5, 7200, 'Storage structures, indexing, denormalisation'); +INSERT INTO Course VALUES ('Java1', 'Java, Basic Course', 5, 6700, 'Basic programming with Java'); +INSERT INTO Course VALUES ('Java2', 'Java, Advanced Course', 4, 6000, 'Advanced programming with Java'); +INSERT INTO Course VALUES ('LDD', 'Logical Database Design', 4, 6000, 'Advanced design, analysis patterns, metamodelling'); +INSERT INTO Course VALUES ('LOG1', 'Logic', 3, 4500, 'First order logic, predicate logic, propositional logic'); +INSERT INTO CourseInstance VALUES ('Java1', '2008-03-06T00:00:00.000Z', 'EN-002', 4); +INSERT INTO CourseInstance VALUES ('DBM1', '2008-04-02T00:00:00.000Z', 'EN-005', 3); +INSERT INTO CourseInstance VALUES ('Java2', '2008-04-16T00:00:00.000Z', 'EN-002', 2); +INSERT INTO CourseInstance VALUES ('LOG1', '2008-04-16T00:00:00.000Z', 'EN-003', 1); +INSERT INTO CourseInstance VALUES ('Java1', '2008-05-06T00:00:00.000Z', 'EN-002', 1); +INSERT INTO CourseInstance VALUES ('LDD', '2008-05-06T00:00:00.000Z', 'EN-005', 3); +INSERT INTO CourseInstance VALUES ('PDB', '2008-05-09T00:00:00.000Z', 'EN-004', 1); +INSERT INTO CourseInstance VALUES ('Java1', '2008-09-02T00:00:00.000Z', 'EN-003', 4); +INSERT INTO CourseInstance VALUES ('LDD', '2008-09-02T00:00:00.000Z', 'EN-004', 2); +INSERT INTO CourseInstance VALUES ('Java2', '2009-01-22T00:00:00.000Z', 'EN-002', 2); +INSERT INTO CourseInstance VALUES ('DBM1', '2009-01-28T00:00:00.000Z', 'EN-005', 1); +INSERT INTO CourseInstance VALUES ('LOG1', '2009-09-17T00:00:00.000Z', 'EN-005', 1); +INSERT INTO CourseInstance VALUES ('DBM1', '2010-02-15T00:00:00.000Z', 'EN-004', 3); +INSERT INTO CourseInstance VALUES ('Java2', '2010-04-11T00:00:00.000Z', 'EN-018', 4); +INSERT INTO CourseInstance VALUES ('Java1', '2010-05-01T00:00:00.000Z', 'EN-003', 5); +INSERT INTO CourseInstance VALUES ('LOG1', '2010-05-01T00:00:00.000Z', 'EN-002', 1); +INSERT INTO CourseInstance VALUES ('DBM1', '2010-09-22T00:00:00.000Z', 'EN-018', 3); +INSERT INTO CourseInstance VALUES ('LDD', '2010-09-24T00:00:00.000Z', 'EN-004', 5); +INSERT INTO CourseInstance VALUES ('Java1', '2011-05-01T00:00:00.000Z', 'EN-002', 5); +INSERT INTO Participation VALUES ('EN-006', 'Java1', '2008-03-06T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-008', 'Java1', '2008-03-06T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-013', 'Java1', '2008-03-06T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-014', 'Java1', '2008-03-06T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-015', 'Java1', '2008-03-06T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-019', 'Java1', '2008-03-06T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-006', 'DBM1', '2008-04-02T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-007', 'DBM1', '2008-04-02T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-008', 'DBM1', '2008-04-02T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-015', 'DBM1', '2008-04-02T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-007', 'Java2', '2008-04-16T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-010', 'Java2', '2008-04-16T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-011', 'Java2', '2008-04-16T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-012', 'Java2', '2008-04-16T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-009', 'LOG1', '2008-04-16T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-010', 'LOG1', '2008-04-16T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-007', 'Java1', '2008-05-06T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-011', 'Java1', '2008-05-06T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-006', 'LDD', '2008-05-06T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-012', 'LDD', '2008-05-06T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-008', 'PDB', '2008-05-09T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-011', 'PDB', '2008-05-09T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-013', 'PDB', '2008-05-09T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-006', 'Java1', '2008-09-02T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-014', 'Java1', '2008-09-02T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-011', 'LDD', '2008-09-02T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-013', 'LDD', '2008-09-02T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-018', 'LDD', '2008-09-02T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-007', 'Java2', '2009-01-22T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-014', 'Java2', '2009-01-22T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-015', 'Java2', '2009-01-22T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-019', 'Java2', '2009-01-22T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-008', 'DBM1', '2009-01-28T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-010', 'DBM1', '2009-01-28T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-019', 'DBM1', '2009-01-28T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-009', 'LOG1', '2009-09-17T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-017', 'LOG1', '2009-09-17T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-008', 'DBM1', '2010-02-15T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-011', 'DBM1', '2010-02-15T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-015', 'DBM1', '2010-02-15T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-009', 'Java2', '2010-04-11T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-010', 'Java2', '2010-04-11T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-012', 'Java2', '2010-04-11T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-015', 'Java2', '2010-04-11T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-011', 'Java1', '2010-05-01T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-012', 'Java1', '2010-05-01T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-013', 'Java1', '2010-05-01T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-010', 'LOG1', '2010-05-01T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-013', 'LOG1', '2010-05-01T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-016', 'LOG1', '2010-05-01T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-021', 'LOG1', '2010-05-01T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-009', 'DBM1', '2010-09-22T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-016', 'DBM1', '2010-09-22T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-017', 'DBM1', '2010-09-22T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-020', 'DBM1', '2010-09-22T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-013', 'LDD', '2010-09-24T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-016', 'LDD', '2010-09-24T00:00:00.000Z'); +INSERT INTO Participation VALUES ('EN-017', 'LDD', '2010-09-24T00:00:00.000Z'); \ No newline at end of file diff --git a/public/languages/en-pg/db_layout_dark.svg b/public/languages/en-pg/db_layout_dark.svg new file mode 100644 index 0000000..183472e --- /dev/null +++ b/public/languages/en-pg/db_layout_dark.svg @@ -0,0 +1,263 @@ + + + + +SQLiteLayout + + +course + + + +course + + +course_code +   +TEXT + + +name +          +TEXT + + +duration +      +INTEGER + + +price +         +INTEGER + + +description +   +TEXT + + +    name (INDEX, UNIQUE)     + + + + +courseinstance + + + +courseinstance + + +course +       +TEXT + + +start_date +   +DATE + + +teacher +      +TEXT + + +room +         +INTEGER + + +    course, start_date, course, start_date     + + + + +courseinstance:f7->course:f1 + + +1 +∞ + + + +room + + + +room + + +id +         +INTEGER + + +name +       +TEXT + + +capacity +   +INTEGER + + +    name (INDEX, UNIQUE)     + + + + 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and postal_code for people living in York!","display_sequence":"A","result":{"columns":["person_id","name","address","postal_code"],"values":[["EN-010","David Wood","School Lane 3","BA1 1AJ"],["EN-014","Jane Bell","Bridge Street 5","BA2 5AN"],["EN-018","William White","Station Road 4","BA3 9AR"],["EN-019","Jane Bell","School Lane 12","BA4 1AS"],["EN-020","David Wood","School Lane 1","BA5 2AT"],["EN-022","George Grant","Lake Drive 14","YO5 4AV"]]}},{"id":2,"description":"Retrieve person_id, name, and phone for people living in York!","display_sequence":"B","result":{"columns":["person_id","name","phone"],"values":[["EN-010","David Wood","01234567899"],["EN-014","Jane Bell","01234567903"],["EN-018","William White","01234567907"],["EN-019","Jane Bell","01234567908"],["EN-020","David Wood","01234567909"],["EN-022","George Grant","01234567911"]]}},{"id":3,"description":"Retrieve person_id, name, address, and postal_code for people living in Bristol!","display_sequence":"C","result":{"columns":["person_id","name","address","postal_code"],"values":[["EN-007","Anne Hall","Elm Drive 3","YO1 7AG"],["EN-009","Robert Stone","Lake Drive 1","YO2 9AI"],["EN-011","Susan Blair","Birch Way 2","YO3 2AK"],["EN-012","George Hunt","Birch Way 24","YO4 3AL"]]}},{"id":4,"description":"Retrieve person_id, name, and phone for people living in Bristol!","display_sequence":"D","result":{"columns":["person_id","name","phone"],"values":[["EN-007","Anne Hall","01234567896"],["EN-009","Robert Stone","01234567898"],["EN-011","Susan Blair","01234567900"],["EN-012","George Hunt","01234567901"]]}},{"id":5,"description":"Retrieve name, address, postal_code, and phone for people living in York!","display_sequence":"E","result":{"columns":["name","address","postal_code","phone"],"values":[["David Wood","School Lane 3","BA1 1AJ","01234567899"],["Jane Bell","Bridge Street 5","BA2 5AN","01234567903"],["William White","Station Road 4","BA3 9AR","01234567907"],["Jane Bell","School Lane 12","BA4 1AS","01234567908"],["David Wood","School Lane 1","BA5 2AT","01234567909"],["George Grant","Lake Drive 14","YO5 4AV","01234567911"]]}},{"id":6,"description":"Retrieve name, address, postal_code, and phone for people living in Bristol!","display_sequence":"F","result":{"columns":["name","address","postal_code","phone"],"values":[["Anne Hall","Elm Drive 3","YO1 7AG","01234567896"],["Robert Stone","Lake Drive 1","YO2 9AI","01234567898"],["Susan Blair","Birch Way 2","YO3 2AK","01234567900"],["George Hunt","Birch Way 24","YO4 3AL","01234567901"]]}},{"id":7,"description":"Retrieve course_code, name, and price for courses of 3 weeks!","display_sequence":"G","result":{"columns":["course_code","name","price"],"values":[["LOG1","Logic",4500]]}},{"id":8,"description":"Retrieve course_code, name, and price for courses of 4 weeks!","display_sequence":"H","result":{"columns":["course_code","name","price"],"values":[["Java2","Java, Advanced Course",6000],["LDD","Logical Database Design",6000]]}}]},{"category_id":2,"display_number":2,"questions":[{"id":9,"description":"Retrieve person_id, name, and city for people living in York or in Bristol!","display_sequence":"A","result":{"columns":["person_id","name","city"],"values":[["EN-007","Anne Hall","Bristol"],["EN-009","Robert Stone","Bristol"],["EN-010","David Wood","York"],["EN-011","Susan Blair","Bristol"],["EN-012","George Hunt","Bristol"],["EN-014","Jane Bell","York"],["EN-018","William White","York"],["EN-019","Jane Bell","York"],["EN-020","David Wood","York"],["EN-022","George Grant","York"]]}},{"id":10,"description":"Retrieve person_id, name, and phone for people living in York or in Brighton!","display_sequence":"B","result":{"columns":["person_id","name","phone"],"values":[["EN-006","John Clark","01234567895"],["EN-008","Emily Ford","01234567897"],["EN-010","David Wood","01234567899"],["EN-014","Jane Bell","01234567903"],["EN-018","William 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Cambridge!","display_sequence":"H","result":{"columns":["person_id","name","city"],"values":[["EN-004","Mary Wilson","Cambridge"],["EN-010","David Wood","York"],["EN-014","Jane Bell","York"],["EN-015","Laura Miles","Cambridge"],["EN-018","William White","York"],["EN-019","Jane Bell","York"],["EN-020","David Wood","York"],["EN-021","John Clark","Cambridge"],["EN-022","George Grant","York"]]}},{"id":17,"description":"Retrieve person_id, name, and phone for people living in Cambridge or in Oxford!","display_sequence":"I","result":{"columns":["person_id","name","phone"],"values":[["EN-003","William Jones","01234567892"],["EN-004","Mary Wilson","01234567893"],["EN-005","Sarah Taylor","01234567894"],["EN-015","Laura Miles","01234567904"],["EN-016","Alice Cole","01234567905"],["EN-017","Jane Palmer","01234567906"],["EN-021","John Clark","01234567910"],["EN-023","Peter Miles","01234567912"]]}},{"id":18,"description":"Retrieve name, address, postal_code, and city for people living in York or in Oxford!","display_sequence":"J","result":{"columns":["name","address","postal_code","city"],"values":[["William Jones","Park Road 3","OX1 3AC","Oxford"],["Sarah Taylor","Mill Lane 5","BN1 5AE","Oxford"],["David Wood","School Lane 3","BA1 1AJ","York"],["Jane Bell","Bridge Street 5","BA2 5AN","York"],["Alice Cole","King Street 44","OX3 7AP","Oxford"],["Jane Palmer","Harbour Lane 15b","OX4 8AQ","Oxford"],["William White","Station Road 4","BA3 9AR","York"],["Jane Bell","School Lane 12","BA4 1AS","York"],["David Wood","School Lane 1","BA5 2AT","York"],["George Grant","Lake Drive 14","YO5 4AV","York"],["Peter Miles","Birch Way 7","CB6 5AW","Oxford"]]}},{"id":19,"description":"Retrieve course_code, name, and price for courses of 3 or 4 weeks!","display_sequence":"K","result":{"columns":["course_code","name","price"],"values":[["Java2","Java, Advanced Course",6000],["LDD","Logical Database 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Java2!","display_sequence":"E","result":{"columns":["teacher"],"values":[["EN-002"],["EN-018"]]}},{"id":25,"description":"Retrieve person_id for teachers who have taught on the course with code DBM1!","display_sequence":"F","result":{"columns":["teacher"],"values":[["EN-004"],["EN-005"],["EN-018"]]}},{"id":26,"description":"Retrieve person_id for teachers who have taught on the course with code LDD!","display_sequence":"G","result":{"columns":["teacher"],"values":[["EN-004"],["EN-005"]]}},{"id":27,"description":"Retrieve person_id for students who have participated in the course with code Java1!","display_sequence":"H","result":{"columns":["student"],"values":[["EN-006"],["EN-007"],["EN-008"],["EN-011"],["EN-012"],["EN-013"],["EN-014"],["EN-015"],["EN-019"]]}},{"id":28,"description":"Retrieve person_id for students who have participated in the course with code DBM1!","display_sequence":"I","result":{"columns":["student"],"values":[["EN-006"],["EN-007"],["EN-008"],["EN-009"],["EN-010"],["EN-011"],["EN-015"],["EN-016"],["EN-017"],["EN-019"],["EN-020"]]}},{"id":29,"description":"Retrieve person_id for students who have participated in the course with code Java2!","display_sequence":"J","result":{"columns":["student"],"values":[["EN-007"],["EN-009"],["EN-010"],["EN-011"],["EN-012"],["EN-014"],["EN-015"],["EN-019"]]}},{"id":30,"description":"Retrieve person_id for students who have participated in the course with code LDD!","display_sequence":"K","result":{"columns":["student"],"values":[["EN-006"],["EN-011"],["EN-012"],["EN-013"],["EN-016"],["EN-017"],["EN-018"]]}}]},{"category_id":4,"display_number":4,"questions":[{"id":31,"description":"Retrieve person_id, name, and phone for teachers who have taught in the room with id 1!","display_sequence":"A","result":{"columns":["person_id","name","phone"],"values":[["EN-002","John 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Java1!","display_sequence":"D","result":{"columns":["person_id","name","phone"],"values":[["EN-002","John Brown","01234567891"],["EN-003","William Jones","01234567892"]]}},{"id":35,"description":"Retrieve person_id, name, and city for teachers who have taught on the course with code Java2!","display_sequence":"E","result":{"columns":["person_id","name","city"],"values":[["EN-002","John Brown","Reading"],["EN-018","William White","York"]]}},{"id":36,"description":"Retrieve name, address, postal_code, and city for teachers who have taught on the course with code DBM1!","display_sequence":"F","result":{"columns":["name","address","postal_code","city"],"values":[["Mary Wilson","High Street 4","CB2 4AD","Cambridge"],["Sarah Taylor","Mill Lane 5","BN1 5AE","Oxford"],["William White","Station Road 4","BA3 9AR","York"]]}},{"id":37,"description":"Retrieve person_id, name, and phone for teachers who have taught on the course with code LDD!","display_sequence":"G","result":{"columns":["person_id","name","phone"],"values":[["EN-004","Mary Wilson","01234567893"],["EN-005","Sarah Taylor","01234567894"]]}},{"id":38,"description":"Retrieve person_id, name, and city for teachers who have taught in the room with id 1!","display_sequence":"H","result":{"columns":["person_id","name","city"],"values":[["EN-002","John Brown","Reading"],["EN-003","William Jones","Oxford"],["EN-004","Mary Wilson","Cambridge"],["EN-005","Sarah Taylor","Oxford"]]}},{"id":39,"description":"Retrieve person_id, name, address, and postal_code for teachers who have taught in the room with id 2!","display_sequence":"I","result":{"columns":["person_id","name","address","postal_code"],"values":[["EN-002","John Brown","Oak Avenue 2","RG1 2AB"],["EN-004","Mary Wilson","High Street 4","CB2 4AD"]]}},{"id":40,"description":"Retrieve person_id, name, and phone for teachers who have taught on the course with code Java2!","display_sequence":"J","result":{"columns":["person_id","name","phone"],"values":[["EN-002","John Brown","01234567891"],["EN-018","William White","01234567907"]]}},{"id":41,"description":"Retrieve person_id, name, and city for teachers who have taught on the course with code LDD!","display_sequence":"K","result":{"columns":["person_id","name","city"],"values":[["EN-004","Mary Wilson","Cambridge"],["EN-005","Sarah Taylor","Oxford"]]}},{"id":42,"description":"Retrieve name, address, postal_code, and city for teachers who have taught on the course with code Java1!","display_sequence":"L","result":{"columns":["name","address","postal_code","city"],"values":[["John Brown","Oak Avenue 2","RG1 2AB","Reading"],["William Jones","Park Road 3","OX1 3AC","Oxford"]]}}]},{"category_id":5,"display_number":5,"questions":[{"id":43,"description":"Retrieve person_id, name, and office_room for teachers who have taught in the room with id 1!","display_sequence":"A","result":{"columns":["person_id","name","office_room"],"values":[["EN-002","John Brown",604],["EN-003","William Jones",603],["EN-004","Mary Wilson",605],["EN-005","Sarah Taylor",622]]}},{"id":44,"description":"Retrieve person_id, name, and office_room for teachers who have taught in the room with id 2!","display_sequence":"B","result":{"columns":["person_id","name","office_room"],"values":[["EN-002","John Brown",604],["EN-004","Mary Wilson",605]]}},{"id":45,"description":"Retrieve person_id, name, and office_room for teachers who have taught in the room with id 3!","display_sequence":"C","result":{"columns":["person_id","name","office_room"],"values":[["EN-004","Mary Wilson",605],["EN-005","Sarah Taylor",622],["EN-018","William White",558]]}},{"id":46,"description":"Retrieve person_id, name, and office_room for teachers who have taught on the course with code Java1!","display_sequence":"D","result":{"columns":["person_id","name","office_room"],"values":[["EN-002","John Brown",604],["EN-003","William Jones",603]]}},{"id":47,"description":"Retrieve person_id, name, and office_room for teachers who have taught on the course with code Java2!","display_sequence":"E","result":{"columns":["person_id","name","office_room"],"values":[["EN-002","John Brown",604],["EN-018","William White",558]]}},{"id":48,"description":"Retrieve person_id, name, and office_room for teachers who have taught on the course with code DBM1!","display_sequence":"F","result":{"columns":["person_id","name","office_room"],"values":[["EN-004","Mary Wilson",605],["EN-005","Sarah Taylor",622],["EN-018","William White",558]]}},{"id":49,"description":"Retrieve person_id, name, and office_room for teachers who have taught on the course with code LDD!","display_sequence":"G","result":{"columns":["person_id","name","office_room"],"values":[["EN-004","Mary Wilson",605],["EN-005","Sarah 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course instance in Sirius!","display_sequence":"D","result":{"columns":["student"],"values":[["EN-006"],["EN-007"],["EN-008"],["EN-009"],["EN-011"],["EN-012"],["EN-015"],["EN-016"],["EN-017"],["EN-020"]]}}]},{"category_id":7,"display_number":7,"questions":[{"id":54,"description":"Retrieve person_id, name, and phone for students who have participated in a course instance in Jupiter!","display_sequence":"A","result":{"columns":["person_id","name","phone"],"values":[["EN-007","Anne Hall","01234567896"],["EN-008","Emily Ford","01234567897"],["EN-009","Robert Stone","01234567898"],["EN-010","David Wood","01234567899"],["EN-011","Susan Blair","01234567900"],["EN-013","Peter Grant","01234567902"],["EN-016","Alice Cole","01234567905"],["EN-017","Jane Palmer","01234567906"],["EN-019","Jane Bell","01234567908"],["EN-021","John Clark","01234567910"]]}},{"id":55,"description":"Retrieve person_id, name, and city for students who have participated in a course instance in Orion!","display_sequence":"B","result":{"columns":["person_id","name","city"],"values":[["EN-007","Anne Hall","Bristol"],["EN-010","David Wood","York"],["EN-011","Susan Blair","Bristol"],["EN-012","George Hunt","Bristol"],["EN-013","Peter Grant","Bath"],["EN-014","Jane Bell","York"],["EN-015","Laura Miles","Cambridge"],["EN-018","William White","York"],["EN-019","Jane Bell","York"]]}},{"id":56,"description":"Retrieve person_id, name, and phone for students who have participated in a course instance in Tellus!","display_sequence":"C","result":{"columns":["person_id","name","phone"],"values":[["EN-006","John Clark","01234567895"],["EN-008","Emily Ford","01234567897"],["EN-009","Robert Stone","01234567898"],["EN-010","David Wood","01234567899"],["EN-012","George Hunt","01234567901"],["EN-013","Peter Grant","01234567902"],["EN-014","Jane Bell","01234567903"],["EN-015","Laura Miles","01234567904"],["EN-019","Jane Bell","01234567908"]]}},{"id":57,"description":"Retrieve person_id, name, and city for students who have participated in a course instance in Sirius!","display_sequence":"D","result":{"columns":["person_id","name","city"],"values":[["EN-006","John Clark","Brighton"],["EN-007","Anne Hall","Bristol"],["EN-008","Emily Ford","Brighton"],["EN-009","Robert Stone","Bristol"],["EN-011","Susan Blair","Bristol"],["EN-012","George Hunt","Bristol"],["EN-015","Laura Miles","Cambridge"],["EN-016","Alice Cole","Oxford"],["EN-017","Jane Palmer","Oxford"],["EN-020","David Wood","York"]]}},{"id":58,"description":"Retrieve name, address, city, and phone for students who have participated in a course instance in Jupiter!","display_sequence":"E","result":{"columns":["name","address","city","phone"],"values":[["Alice Cole","King Street 44","Oxford","01234567905"],["Anne Hall","Elm Drive 3","Bristol","01234567896"],["David Wood","School Lane 3","York","01234567899"],["Emily Ford","River Road 4","Brighton","01234567897"],["Jane Bell","School Lane 12","York","01234567908"],["Jane 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address, city, and phone for students who have participated in a course instance in Tellus!","display_sequence":"G","result":{"columns":["name","address","city","phone"],"values":[["David Wood","School Lane 3","York","01234567899"],["Emily Ford","River Road 4","Brighton","01234567897"],["George Hunt","Birch Way 24","Bristol","01234567901"],["Jane Bell","Bridge Street 5","York","01234567903"],["Jane Bell","School Lane 12","York","01234567908"],["John Clark","Church Road 6","Brighton","01234567895"],["Laura Miles","Valley Road 3","Cambridge","01234567904"],["Peter Grant","Hill Road 112","Bath","01234567902"],["Robert Stone","Lake Drive 1","Bristol","01234567898"]]}},{"id":61,"description":"Retrieve name, address, postal_code, and city for students who have participated in a course instance in Sirius!","display_sequence":"H","result":{"columns":["name","address","postal_code","city"],"values":[["Alice Cole","King Street 44","OX3 7AP","Oxford"],["Anne Hall","Elm Drive 3","YO1 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Show the student's person_id, the student's name, and the count!","display_sequence":"A","result":{"columns":["person_id","name","count"],"values":[["EN-006","John Clark",4],["EN-007","Anne Hall",4],["EN-013","Peter Grant",6],["EN-009","Robert Stone",4],["EN-019","Jane Bell",3],["EN-012","George Hunt",4],["EN-011","Susan Blair",6],["EN-014","Jane Bell",3],["EN-010","David Wood",5],["EN-015","Laura Miles",5],["EN-020","David Wood",1],["EN-001","James Smith",0],["EN-021","John Clark",1],["EN-017","Jane Palmer",3],["EN-018","William White",1],["EN-016","Alice Cole",3],["EN-008","Emily Ford",5]]},"alternative_results":[{"columns":["person_id","name","count"],"values":[["EN-006","John Clark",4],["EN-007","Anne Hall",4],["EN-013","Peter Grant",6],["EN-009","Robert Stone",4],["EN-019","Jane Bell",3],["EN-012","George Hunt",4],["EN-011","Susan Blair",6],["EN-014","Jane Bell",3],["EN-010","David Wood",5],["EN-015","Laura Miles",5],["EN-020","David Wood",1],["EN-021","John Clark",1],["EN-017","Jane Palmer",3],["EN-018","William White",1],["EN-016","Alice Cole",3],["EN-008","Emily Ford",5]]}]},{"id":63,"description":"Retrieve the number of course instances each room has been used for! Show the room's name, the room's capacity, and the count!","display_sequence":"B","result":{"columns":["name","capacity","count"],"values":[["Orion",24,3],["Sirius",16,4],["Saturn",24,3],["Tellus",32,3],["Jupiter",12,6]]},"alternative_results":[{"columns":["name","capacity","count"],"values":[["Tellus",32,3],["Orion",24,3],["Sirius",16,4],["Saturn",24,3],["Jupiter",12,6]]}]},{"id":64,"description":"Retrieve the number of course instances each course has had! Show the course's code, the course's name, and the count!","display_sequence":"C","result":{"columns":["course_code","name","count"],"values":[["LDD","Logical Database Design",3],["Java2","Java, Advanced Course",3],["LOG1","Logic",3],["DBM1","Database Methodology",4],["PDB","Physical Database Design",1],["Java1","Java, Basic Course",5]]},"alternative_results":[{"columns":["course_code","name","count"],"values":[["LDD","Logical Database Design",3],["Java2","Java, Advanced Course",3],["LOG1","Logic",3],["DBM1","Database Methodology",4],["PDB","Physical Database Design",1],["Java1","Java, Basic Course",5]]}]},{"id":65,"description":"Retrieve the number of course instances each teacher has held! Show the teacher's person_id, the teacher's name, and the count!","display_sequence":"D","result":{"columns":["person_id","name","count"],"values":[["EN-005","Sarah Taylor",4],["EN-004","Mary Wilson",4],["EN-003","William Jones",3],["EN-001","James Smith",0],["EN-018","William White",2],["EN-002","John Brown",6]]},"alternative_results":[{"columns":["person_id","name","count"],"values":[["EN-005","Sarah Taylor",4],["EN-004","Mary Wilson",4],["EN-003","William Jones",3],["EN-018","William White",2],["EN-002","John Brown",6]]}]},{"id":66,"description":"Retrieve the number of participating students for each course instance! Show the course instance's course_code and course name, the course instance's start_date, and the number of participating students!","display_sequence":"E","result":{"columns":["course","name","start_date","count"],"values":[["DBM1","Database Methodology","2008-04-02",4],["DBM1","Database Methodology","2010-09-22",4],["Java1","Java, Basic Course","2010-05-01",3],["Java1","Java, Basic Course","2008-05-06",2],["LDD","Logical Database Design","2008-05-06",2],["LOG1","Logic","2008-04-16",2],["LDD","Logical Database Design","2008-09-02",3],["LOG1","Logic","2009-09-17",2],["Java2","Java, Advanced Course","2010-04-11",4],["Java2","Java, Advanced Course","2009-01-22",4],["DBM1","Database Methodology","2009-01-28",3],["Java1","Java, Basic Course","2008-03-06",6],["Java2","Java, Advanced Course","2008-04-16",4],["Java1","Java, Basic Course","2011-05-01",0],["LOG1","Logic","2010-05-01",4],["PDB","Physical Database Design","2008-05-09",3],["LDD","Logical Database Design","2010-09-24",3],["Java1","Java, Basic Course","2008-09-02",2],["DBM1","Database Methodology","2010-02-15",3]]},"alternative_results":[{"columns":["course","name","start_date","count"],"values":[["DBM1","Database Methodology","2008-04-02",4],["DBM1","Database Methodology","2010-09-22",4],["Java1","Java, Basic Course","2010-05-01",3],["Java1","Java, Basic Course","2008-05-06",2],["LDD","Logical Database Design","2008-05-06",2],["LOG1","Logic","2008-04-16",2],["LDD","Logical Database Design","2008-09-02",3],["LOG1","Logic","2009-09-17",2],["Java2","Java, Advanced Course","2010-04-11",4],["Java2","Java, Advanced Course","2009-01-22",4],["DBM1","Database Methodology","2009-01-28",3],["Java1","Java, Basic Course","2008-03-06",6],["Java2","Java, Advanced Course","2008-04-16",4],["LOG1","Logic","2010-05-01",4],["PDB","Physical Database Design","2008-05-09",3],["LDD","Logical Database Design","2010-09-24",3],["Java1","Java, Basic Course","2008-09-02",2],["DBM1","Database Methodology","2010-02-15",3]]}]}]},{"category_id":9,"display_number":9,"questions":[{"id":67,"description":"I. Retrieve person_id, name, and phone as well as the number of course instances each teacher has held! II. Retrieve person_id, name, and phone for the teacher who has held the most course instances!","display_sequence":"A","result":{"columns":["person_id","name","phone"],"values":[["EN-002","John Brown","01234567891"]]}},{"id":68,"description":"I. Retrieve person_id, name, and phone as well as the number of course instances per student! II. Retrieve person_id, name, and phone for the student who has participated in the most course instances!","display_sequence":"B","result":{"columns":["person_id","name","phone"],"values":[["EN-013","Peter Grant","01234567902"],["EN-011","Susan Blair","01234567900"]]}},{"id":69,"description":"I. Retrieve course_code, name, and duration as well as the number of course instances per course! II. Retrieve course_code, name, and duration for the course that has had the most course instances!","display_sequence":"C","result":{"columns":["course_code","name","duration"],"values":[["Java1","Java, Basic Course",5]]}},{"id":70,"description":"I. Retrieve name and capacity as well as the number of course instances per room! II. Retrieve name and capacity for the room that has been used for the most course instances!","display_sequence":"D","result":{"columns":["name","capacity"],"values":[["Jupiter",12]]}},{"id":71,"description":"I. Retrieve course_code, course name, and start_date as well as the number of participants per course instance! II. Retrieve course_code, course name, and start_date for the course instance that has had the most participants!","display_sequence":"E","result":{"columns":["course","name","start_date"],"values":[["Java1","Java, Basic Course","2008-03-06"]]}}]},{"category_id":10,"display_number":10,"questions":[{"id":72,"description":"Retrieve person_id, name, and city for students who have participated in at least three DIFFERENT courses!","display_sequence":"A","result":{"columns":["person_id","name","city"],"values":[["EN-006","John Clark","Brighton"],["EN-007","Anne Hall","Bristol"],["EN-008","Emily Ford","Brighton"],["EN-009","Robert Stone","Bristol"],["EN-010","David Wood","York"],["EN-011","Susan Blair","Bristol"],["EN-012","George Hunt","Bristol"],["EN-013","Peter Grant","Bath"],["EN-015","Laura Miles","Cambridge"],["EN-016","Alice Cole","Oxford"],["EN-017","Jane Palmer","Oxford"],["EN-019","Jane Bell","York"]]}},{"id":73,"description":"Retrieve person_id, name, and phone for teachers who have held at least three DIFFERENT courses!","display_sequence":"B","result":{"columns":["person_id","name","phone"],"values":[["EN-002","John Brown","01234567891"],["EN-004","Mary Wilson","01234567893"],["EN-005","Sarah Taylor","01234567894"]]}},{"id":74,"description":"Retrieve person_id, name, and city for teachers who have held course instances in at least three DIFFERENT rooms!","display_sequence":"C","result":{"columns":["person_id","name","city"],"values":[["EN-002","John Brown","Reading"],["EN-003","William Jones","Oxford"],["EN-004","Mary Wilson","Cambridge"]]}},{"id":75,"description":"Retrieve name and capacity for rooms that have been used by at least three DIFFERENT teachers!","display_sequence":"D","result":{"columns":["name","capacity"],"values":[["Jupiter",12],["Sirius",16],["Tellus",32],["Saturn",24]]}},{"id":76,"description":"Retrieve name and capacity for rooms that have been used for course instances of at least three DIFFERENT courses!","display_sequence":"E","result":{"columns":["name","capacity"],"values":[["Jupiter",12]]}},{"id":77,"description":"Retrieve code, name, and price for courses that have been held in at least three DIFFERENT rooms!","display_sequence":"F","result":{"columns":["course_code","name","price"],"values":[["Java1","Java, Basic Course",6700],["LDD","Logical Database Design",6000]]}},{"id":78,"description":"Retrieve code, name, and price for courses that have been held by at least three DIFFERENT teachers!","display_sequence":"G","result":{"columns":["course_code","name","price"],"values":[["DBM1","Database Methodology",2800],["LOG1","Logic",4500]]}}]},{"category_id":11,"display_number":11,"questions":[{"id":79,"description":"Retrieve name and city for people who are not teachers!","display_sequence":"A","result":{"columns":["name","city"],"values":[["John Clark","Brighton"],["Anne Hall","Bristol"],["Emily Ford","Brighton"],["Robert Stone","Bristol"],["David Wood","York"],["Susan Blair","Bristol"],["George Hunt","Bristol"],["Peter Grant","Bath"],["Jane Bell","York"],["Laura Miles","Cambridge"],["Alice Cole","Oxford"],["Jane Palmer","Oxford"],["Jane Bell","York"],["David Wood","York"],["John Clark","Cambridge"],["George Grant","York"],["Peter Miles","Oxford"],["Laura Palmer","Brighton"],["Susan Stone","Guildford"]]}},{"id":80,"description":"Retrieve name and city for students who did not participate in any course instance with a start date during 2010!","display_sequence":"B","result":{"columns":["name","city"],"values":[["James Smith","Guildford"],["John Clark","Brighton"],["Anne Hall","Bristol"],["Jane Bell","York"],["William White","York"],["Jane Bell","York"]]}},{"id":81,"description":"Retrieve name and city for students who have not taken the course with code Java1!","display_sequence":"C","result":{"columns":["name","city"],"values":[["James Smith","Guildford"],["Robert Stone","Bristol"],["David Wood","York"],["Alice Cole","Oxford"],["Jane Palmer","Oxford"],["William White","York"],["David Wood","York"],["John Clark","Cambridge"]]}},{"id":82,"description":"Retrieve name and city for students who have not taken the course with code LOG1!","display_sequence":"D","result":{"columns":["name","city"],"values":[["James Smith","Guildford"],["John Clark","Brighton"],["Anne Hall","Bristol"],["Emily Ford","Brighton"],["Susan Blair","Bristol"],["George Hunt","Bristol"],["Jane Bell","York"],["Laura Miles","Cambridge"],["William White","York"],["Jane Bell","York"],["David Wood","York"]]}}]},{"category_id":12,"display_number":12,"questions":[{"id":83,"description":"Retrieve person_id, name, office_room, and phone for teachers who have never held a course instance for the course \"Java, Advanced Course\"!","display_sequence":"A","result":{"columns":["person_id","name","office_room","phone"],"values":[["EN-001","James Smith",634,"01234567890"],["EN-003","William Jones",603,"01234567892"],["EN-004","Mary Wilson",605,"01234567893"],["EN-005","Sarah Taylor",622,"01234567894"]]}},{"id":84,"description":"Retrieve person_id, name, and city for students with disabilities who have not taken the course \"Logical Database Design\"!","display_sequence":"B","result":{"columns":["person_id","name","city"],"values":[["EN-007","Anne Hall","Bristol"],["EN-015","Laura Miles","Cambridge"],["EN-020","David Wood","York"]]}},{"id":85,"description":"Retrieve name and capacity for rooms that have never been used for a course instance of the course \"Logical Database Design\"!","display_sequence":"C","result":{"columns":["name","capacity"],"values":[["Jupiter",12],["Tellus",32]]}},{"id":86,"description":"Retrieve name and capacity for rooms that have never been used by the teacher John Brown!","display_sequence":"D","result":{"columns":["name","capacity"],"values":[["Sirius",16]]}}]},{"category_id":13,"display_number":13,"questions":[{"id":87,"description":"Retrieve person_id, name, and phone for students who have taken the course \"Physical Database Design\" or the course \"Logical Database Design\" (or both)!","display_sequence":"A","result":{"columns":["person_id","name","phone"],"values":[["EN-006","John Clark","01234567895"],["EN-008","Emily Ford","01234567897"],["EN-011","Susan Blair","01234567900"],["EN-012","George Hunt","01234567901"],["EN-013","Peter Grant","01234567902"],["EN-016","Alice Cole","01234567905"],["EN-017","Jane Palmer","01234567906"],["EN-018","William White","01234567907"]]}},{"id":88,"description":"Retrieve person_id, name, and city for students who have participated in course instances in room Orion or in room Jupiter (or in both)!","display_sequence":"B","result":{"columns":["person_id","name","city"],"values":[["EN-007","Anne Hall","Bristol"],["EN-008","Emily Ford","Brighton"],["EN-009","Robert Stone","Bristol"],["EN-010","David Wood","York"],["EN-011","Susan Blair","Bristol"],["EN-012","George Hunt","Bristol"],["EN-013","Peter Grant","Bath"],["EN-014","Jane Bell","York"],["EN-015","Laura Miles","Cambridge"],["EN-016","Alice Cole","Oxford"],["EN-017","Jane Palmer","Oxford"],["EN-018","William White","York"],["EN-019","Jane Bell","York"],["EN-021","John Clark","Cambridge"]]}},{"id":89,"description":"Retrieve person_id, name, and phone for teachers who have held the course \"Logic\" or the course \"Database Methodology\" (or both)!","display_sequence":"C","result":{"columns":["person_id","name","phone"],"values":[["EN-002","John Brown","01234567891"],["EN-003","William Jones","01234567892"],["EN-004","Mary Wilson","01234567893"],["EN-005","Sarah Taylor","01234567894"],["EN-018","William White","01234567907"]]}},{"id":90,"description":"Retrieve name and capacity for rooms that have been used by teacher John Brown or by teacher William Jones (or by both)!","display_sequence":"D","result":{"columns":["name","capacity"],"values":[["Jupiter",12],["Orion",24],["Saturn",24],["Tellus",32]]}},{"id":91,"description":"Retrieve name and capacity for rooms that have been used for the course \"Logic\" or for the course \"Java, Advanced Course\" (or for both)!","display_sequence":"E","result":{"columns":["name","capacity"],"values":[["Jupiter",12],["Orion",24],["Tellus",32]]}}]},{"category_id":14,"display_number":14,"questions":[{"id":92,"description":"Retrieve person_id, name, and city for students who have taken both the course \"Physical Database Design\" and the course \"Logical Database Design\"!","display_sequence":"A","result":{"columns":["person_id","name","city"],"values":[["EN-013","Peter Grant","Bath"],["EN-011","Susan Blair","Bristol"]]}},{"id":93,"description":"Retrieve person_id, name, and phone for students who have participated in course instances in both room Orion and room Jupiter!","display_sequence":"B","result":{"columns":["person_id","name","phone"],"values":[["EN-011","Susan Blair","01234567900"],["EN-007","Anne Hall","01234567896"],["EN-010","David Wood","01234567899"],["EN-019","Jane Bell","01234567908"],["EN-013","Peter Grant","01234567902"]]}},{"id":94,"description":"Retrieve person_id, name, and office_room for teachers who have held both the course \"Logical Database Design\" and the course \"Database Methodology\"!","display_sequence":"C","result":{"columns":["person_id","name","office_room"],"values":[["EN-005","Sarah Taylor",622],["EN-004","Mary Wilson",605]]}},{"id":95,"description":"Retrieve name and capacity for rooms that have been used by both teacher Mary Wilson and teacher John Brown!","display_sequence":"D","result":{"columns":["name","capacity"],"values":[["Orion",24],["Saturn",24],["Jupiter",12]]}},{"id":96,"description":"Retrieve name and capacity for rooms that have been used for both the course \"Logic\" and the course \"Java, Basic Course\"!","display_sequence":"E","result":{"columns":["name","capacity"],"values":[["Jupiter",12]]}},{"id":97,"description":"Retrieve person_id, name, office_room, and phone for teachers who have held course instances in both room Jupiter and room Sirius!","display_sequence":"F","result":{"columns":["person_id","name","office_room","phone"],"values":[["EN-005","Sarah Taylor",622,"01234567894"],["EN-004","Mary Wilson",605,"01234567893"]]}}]},{"category_id":15,"display_number":15,"questions":[{"id":98,"description":"Retrieve person_id, name, and phone for students who have participated in course instances led by all teachers from Oxford!","display_sequence":"A","result":{"columns":["person_id","name","phone"],"values":[["EN-006","John Clark","01234567895"],["EN-009","Robert Stone","01234567898"],["EN-010","David Wood","01234567899"],["EN-012","George Hunt","01234567901"]]}},{"id":99,"description":"Retrieve name and capacity for rooms that have been used by all teachers from Oxford!","display_sequence":"B","result":{"columns":["name","capacity"],"values":[["Jupiter",12]]}},{"id":100,"description":"Retrieve name and capacity for rooms that have been used for all courses that cost under 5000!","display_sequence":"C","result":{"columns":["name","capacity"],"values":[["Jupiter",12]]}},{"id":101,"description":"Retrieve person_id, name, and phone for teachers who have held course instances of all courses of at most three weeks!","display_sequence":"D","result":{"columns":["person_id","name","phone"],"values":[["EN-005","Sarah Taylor","01234567894"]]}}]},{"category_id":16,"display_number":16,"questions":[{"id":102,"description":"Retrieve the number of students from Bristol for each course instance! Show course_code, start_date, and the number of students! Course instances without students from Bristol should also be shown!","display_sequence":"A","result":{"columns":["course","start_date","count"],"values":[["LDD","2008-09-02",1],["Java1","2008-03-06",0],["Java1","2008-05-06",2],["LOG1","2010-05-01",0],["LDD","2010-09-24",0],["Java2","2010-04-11",2],["LDD","2008-05-06",1],["DBM1","2008-04-02",1],["Java2","2008-04-16",3],["Java1","2010-05-01",2],["LOG1","2009-09-17",1],["DBM1","2010-09-22",1],["DBM1","2009-01-28",0],["Java2","2009-01-22",1],["Java1","2011-05-01",0],["LOG1","2008-04-16",1],["Java1","2008-09-02",0],["DBM1","2010-02-15",1],["PDB","2008-05-09",1]]}},{"id":103,"description":"Retrieve the number of times each student has participated in the course \"Logical Database Design\"! Show the student's person_id, name, and city as well as the count! Students who have not participated in the course should also be shown!","display_sequence":"B","result":{"columns":["person_id","name","city","count"],"values":[["EN-006","John Clark","Brighton",1],["EN-007","Anne Hall","Bristol",0],["EN-013","Peter Grant","Bath",2],["EN-009","Robert Stone","Bristol",0],["EN-019","Jane Bell","York",0],["EN-012","George Hunt","Bristol",1],["EN-011","Susan Blair","Bristol",1],["EN-014","Jane Bell","York",0],["EN-010","David Wood","York",0],["EN-015","Laura Miles","Cambridge",0],["EN-020","David Wood","York",0],["EN-001","James Smith","Guildford",0],["EN-021","John Clark","Cambridge",0],["EN-017","Jane Palmer","Oxford",1],["EN-018","William White","York",1],["EN-016","Alice Cole","Oxford",1],["EN-008","Emily Ford","Brighton",0]]}},{"id":104,"description":"Retrieve the number of times each student has participated in the course \"Java, Basic Course\"! Show the student's person_id, name, and city as well as the count! Students who have not participated in the course should also be shown!","display_sequence":"C","result":{"columns":["person_id","name","city","count"],"values":[["EN-006","John Clark","Brighton",2],["EN-007","Anne Hall","Bristol",1],["EN-013","Peter Grant","Bath",2],["EN-009","Robert Stone","Bristol",0],["EN-019","Jane Bell","York",1],["EN-012","George Hunt","Bristol",1],["EN-011","Susan Blair","Bristol",2],["EN-014","Jane Bell","York",2],["EN-010","David Wood","York",0],["EN-015","Laura Miles","Cambridge",1],["EN-020","David Wood","York",0],["EN-001","James Smith","Guildford",0],["EN-021","John Clark","Cambridge",0],["EN-017","Jane Palmer","Oxford",0],["EN-018","William White","York",0],["EN-016","Alice Cole","Oxford",0],["EN-008","Emily Ford","Brighton",1]]}},{"id":105,"description":"Retrieve the number of times each teacher has held the course \"Java, Basic Course\"! Show the teacher's person_id, name, phone, and office_room as well as the count! Teachers who have not held the course should also be shown!","display_sequence":"D","result":{"columns":["person_id","name","phone","office_room","count"],"values":[["EN-018","William White","01234567907",558,0],["EN-002","John Brown","01234567891",604,3],["EN-004","Mary Wilson","01234567893",605,0],["EN-005","Sarah Taylor","01234567894",622,0],["EN-001","James Smith","01234567890",634,0],["EN-003","William Jones","01234567892",603,2]]}},{"id":106,"description":"Retrieve the number of course instances each teacher has held with a start date during the year 2010! Show the teacher's person_id, name, phone, and office_room as well as the count! Teachers who have not held course instances during 2010 should also be shown!","display_sequence":"E","result":{"columns":["person_id","name","phone","office_room","count"],"values":[["EN-018","William White","01234567907",558,2],["EN-002","John Brown","01234567891",604,1],["EN-004","Mary Wilson","01234567893",605,2],["EN-005","Sarah Taylor","01234567894",622,0],["EN-001","James Smith","01234567890",634,0],["EN-003","William Jones","01234567892",603,1]]}},{"id":107,"description":"Retrieve the number of course instances with a start date during the year 2008 for each student! Show the student's person_id, name, phone, and city as well as the count! Students who have not participated in course instances during 2008 should also be shown!","display_sequence":"F","result":{"columns":["person_id","name","phone","city","count"],"values":[["EN-006","John Clark","01234567895","Brighton",4],["EN-007","Anne Hall","01234567896","Bristol",3],["EN-013","Peter Grant","01234567902","Bath",3],["EN-009","Robert Stone","01234567898","Bristol",1],["EN-019","Jane Bell","01234567908","York",1],["EN-012","George Hunt","01234567901","Bristol",2],["EN-011","Susan Blair","01234567900","Bristol",4],["EN-014","Jane Bell","01234567903","York",2],["EN-010","David Wood","01234567899","York",2],["EN-015","Laura Miles","01234567904","Cambridge",2],["EN-020","David Wood","01234567909","York",0],["EN-001","James Smith","01234567890","Guildford",0],["EN-021","John Clark","01234567910","Cambridge",0],["EN-017","Jane Palmer","01234567906","Oxford",0],["EN-018","William White","01234567907","York",1],["EN-016","Alice Cole","01234567905","Oxford",0],["EN-008","Emily Ford","01234567897","Brighton",3]]}}]},{"category_id":17,"display_number":17,"questions":[{"id":108,"description":"Retrieve information about course instances in which no student from York has participated! Show course_code, course name, start_date, room name, and teacher name!","display_sequence":"A","result":{"columns":["course","name","start_date","name","name"],"values":[["DBM1","Database Methodology","2008-04-02","Sirius","Sarah Taylor"],["Java1","Java, Basic Course","2008-05-06","Jupiter","John Brown"],["LDD","Logical Database Design","2008-05-06","Sirius","Sarah Taylor"],["PDB","Physical Database Design","2008-05-09","Jupiter","Mary Wilson"],["LOG1","Logic","2009-09-17","Jupiter","Sarah Taylor"],["DBM1","Database Methodology","2010-02-15","Sirius","Mary Wilson"],["Java1","Java, Basic Course","2010-05-01","Saturn","William Jones"],["LDD","Logical Database Design","2010-09-24","Saturn","Mary Wilson"],["Java1","Java, Basic Course","2011-05-01","Saturn","John Brown"]]}},{"id":109,"description":"Retrieve information about course instances in which no student from Bristol has participated! Show course_code, course name, start_date, room name, and teacher name!","display_sequence":"B","result":{"columns":["course","name","start_date","name","name"],"values":[["Java1","Java, Basic Course","2008-03-06","Tellus","John Brown"],["Java1","Java, Basic Course","2008-09-02","Tellus","William Jones"],["DBM1","Database Methodology","2009-01-28","Jupiter","Sarah Taylor"],["LOG1","Logic","2010-05-01","Jupiter","John Brown"],["LDD","Logical Database Design","2010-09-24","Saturn","Mary Wilson"],["Java1","Java, Basic Course","2011-05-01","Saturn","John Brown"]]}},{"id":110,"description":"Retrieve information about course instances in which no student with a disability has participated! Show course_code, course name, start_date, room name, and teacher name!","display_sequence":"C","result":{"columns":["course","name","start_date","name","name"],"values":[["LOG1","Logic","2008-04-16","Jupiter","William Jones"],["LDD","Logical Database Design","2008-05-06","Sirius","Sarah Taylor"],["Java1","Java, Basic Course","2008-09-02","Tellus","William Jones"],["DBM1","Database Methodology","2009-01-28","Jupiter","Sarah Taylor"],["LOG1","Logic","2010-05-01","Jupiter","John Brown"],["Java1","Java, Basic Course","2011-05-01","Saturn","John Brown"]]}}]}]} \ No newline at end of file diff --git a/public/languages/en/data.sqlite3 b/public/languages/en/data.sqlite3 index dffa0be..9dcea38 100644 Binary files a/public/languages/en/data.sqlite3 and b/public/languages/en/data.sqlite3 differ diff --git a/public/languages/en/questionpool.json b/public/languages/en/questionpool.json index 0f876f9..d80c61e 100644 --- a/public/languages/en/questionpool.json +++ b/public/languages/en/questionpool.json @@ -1 +1 @@ -{"language":"en","defaultQuery":"SELECT * FROM Student;","questions":[{"category_id":1,"display_number":1,"questions":[{"id":1,"description":"Retrieve person_id, name, address, and postal_code for people living in York!","display_sequence":"A","result":{"columns":["person_id","name","address","postal_code"],"values":[["EN-010","David Wood","School Lane 3","BA1 1AJ"],["EN-014","Jane Bell","Bridge Street 5","BA2 5AN"],["EN-018","William White","Station Road 4","BA3 9AR"],["EN-019","Jane Bell","School Lane 12","BA4 1AS"],["EN-020","David Wood","School Lane 1","BA5 2AT"]]}},{"id":2,"description":"Retrieve person_id, name, and phone for people living in York!","display_sequence":"B","result":{"columns":["person_id","name","phone"],"values":[["EN-010","David Wood","01234567899"],["EN-014","Jane Bell","01234567903"],["EN-018","William White","01234567907"],["EN-019","Jane Bell","01234567908"],["EN-020","David Wood","01234567909"]]}},{"id":3,"description":"Retrieve person_id, name, address, and postal_code for people living in Bristol!","display_sequence":"C","result":{"columns":["person_id","name","address","postal_code"],"values":[["EN-007","Anne Hall","Elm Drive 3","YO1 7AG"],["EN-009","Robert Stone","Lake Drive 1","YO2 9AI"],["EN-011","Susan Blair","Birch Way 2","YO3 2AK"],["EN-012","George Hunt","Birch Way 24","YO4 3AL"]]}},{"id":4,"description":"Retrieve person_id, name, and phone for people living in Bristol!","display_sequence":"D","result":{"columns":["person_id","name","phone"],"values":[["EN-007","Anne Hall","01234567896"],["EN-009","Robert Stone","01234567898"],["EN-011","Susan Blair","01234567900"],["EN-012","George Hunt","01234567901"]]}},{"id":5,"description":"Retrieve name, address, postal_code, and phone for people living in York!","display_sequence":"E","result":{"columns":["name","address","postal_code","phone"],"values":[["David Wood","School Lane 3","BA1 1AJ","01234567899"],["Jane Bell","Bridge Street 5","BA2 5AN","01234567903"],["William White","Station Road 4","BA3 9AR","01234567907"],["Jane Bell","School Lane 12","BA4 1AS","01234567908"],["David Wood","School Lane 1","BA5 2AT","01234567909"]]}},{"id":6,"description":"Retrieve name, address, postal_code, and phone for people living in Bristol!","display_sequence":"F","result":{"columns":["name","address","postal_code","phone"],"values":[["Anne Hall","Elm Drive 3","YO1 7AG","01234567896"],["Robert Stone","Lake Drive 1","YO2 9AI","01234567898"],["Susan Blair","Birch Way 2","YO3 2AK","01234567900"],["George Hunt","Birch Way 24","YO4 3AL","01234567901"]]}},{"id":7,"description":"Retrieve course_code, name, and price for courses of 3 weeks!","display_sequence":"G","result":{"columns":["course_code","name","price"],"values":[["LOG1","Logic",4500]]}},{"id":8,"description":"Retrieve course_code, name, and price for courses of 4 weeks!","display_sequence":"H","result":{"columns":["course_code","name","price"],"values":[["Java2","Java, Advanced Course",6000],["LDD","Logical Database Design",6000]]}}]},{"category_id":2,"display_number":2,"questions":[{"id":9,"description":"Retrieve person_id, name, and city for people living in York or in Bristol!","display_sequence":"A","result":{"columns":["person_id","name","city"],"values":[["EN-007","Anne Hall","Bristol"],["EN-009","Robert Stone","Bristol"],["EN-010","David Wood","York"],["EN-011","Susan Blair","Bristol"],["EN-012","George Hunt","Bristol"],["EN-014","Jane Bell","York"],["EN-018","William White","York"],["EN-019","Jane Bell","York"],["EN-020","David Wood","York"]]}},{"id":10,"description":"Retrieve person_id, name, and phone for people living in York or in Brighton!","display_sequence":"B","result":{"columns":["person_id","name","phone"],"values":[["EN-006","John Clark","01234567895"],["EN-008","Emily Ford","01234567897"],["EN-010","David Wood","01234567899"],["EN-014","Jane Bell","01234567903"],["EN-018","William White","01234567907"],["EN-019","Jane Bell","01234567908"],["EN-020","David Wood","01234567909"]]}},{"id":11,"description":"Retrieve person_id, name, and city for people living in Bristol or in Cambridge!","display_sequence":"C","result":{"columns":["person_id","name","city"],"values":[["EN-004","Mary Wilson","Cambridge"],["EN-007","Anne Hall","Bristol"],["EN-009","Robert Stone","Bristol"],["EN-011","Susan Blair","Bristol"],["EN-012","George Hunt","Bristol"],["EN-015","Laura Miles","Cambridge"],["EN-021","John Clark","Cambridge"]]}},{"id":12,"description":"Retrieve person_id, name, and phone for people living in Bristol or in Brighton!","display_sequence":"D","result":{"columns":["person_id","name","phone"],"values":[["EN-006","John Clark","01234567895"],["EN-007","Anne Hall","01234567896"],["EN-008","Emily Ford","01234567897"],["EN-009","Robert Stone","01234567898"],["EN-011","Susan Blair","01234567900"],["EN-012","George Hunt","01234567901"]]}},{"id":13,"description":"Retrieve name, address, postal_code, and city for people living in York or in Cambridge!","display_sequence":"E","result":{"columns":["name","address","postal_code","city"],"values":[["Mary Wilson","High Street 4","CB2 4AD","Cambridge"],["David Wood","School Lane 3","BA1 1AJ","York"],["Jane Bell","Bridge Street 5","BA2 5AN","York"],["Laura Miles","Valley Road 3","CB3 6AO","Cambridge"],["William White","Station Road 4","BA3 9AR","York"],["Jane Bell","School Lane 12","BA4 1AS","York"],["David Wood","School Lane 1","BA5 2AT","York"],["John Clark","High Street 63","CB4 3AU","Cambridge"]]}},{"id":14,"description":"Retrieve name, address, postal_code, and city for people living in Bristol or in York!","display_sequence":"F","result":{"columns":["name","address","postal_code","city"],"values":[["Anne Hall","Elm Drive 3","YO1 7AG","Bristol"],["Robert Stone","Lake Drive 1","YO2 9AI","Bristol"],["David Wood","School Lane 3","BA1 1AJ","York"],["Susan Blair","Birch Way 2","YO3 2AK","Bristol"],["George Hunt","Birch Way 24","YO4 3AL","Bristol"],["Jane Bell","Bridge Street 5","BA2 5AN","York"],["William White","Station Road 4","BA3 9AR","York"],["Jane Bell","School Lane 12","BA4 1AS","York"],["David Wood","School Lane 1","BA5 2AT","York"]]}},{"id":15,"description":"Retrieve person_id, name, and phone for people living in Cambridge or in Brighton!","display_sequence":"G","result":{"columns":["person_id","name","phone"],"values":[["EN-004","Mary Wilson","01234567893"],["EN-006","John Clark","01234567895"],["EN-008","Emily Ford","01234567897"],["EN-015","Laura Miles","01234567904"],["EN-021","John Clark","01234567910"]]}},{"id":16,"description":"Retrieve person_id, name, and city for people living in York or in Cambridge!","display_sequence":"H","result":{"columns":["person_id","name","city"],"values":[["EN-004","Mary Wilson","Cambridge"],["EN-010","David Wood","York"],["EN-014","Jane Bell","York"],["EN-015","Laura Miles","Cambridge"],["EN-018","William White","York"],["EN-019","Jane Bell","York"],["EN-020","David Wood","York"],["EN-021","John Clark","Cambridge"]]}},{"id":17,"description":"Retrieve person_id, name, and phone for people living in Cambridge or in Oxford!","display_sequence":"I","result":{"columns":["person_id","name","phone"],"values":[["EN-003","William Jones","01234567892"],["EN-004","Mary Wilson","01234567893"],["EN-005","Sarah Taylor","01234567894"],["EN-015","Laura Miles","01234567904"],["EN-016","Alice Cole","01234567905"],["EN-017","Jane Palmer","01234567906"],["EN-021","John Clark","01234567910"]]}},{"id":18,"description":"Retrieve name, address, postal_code, and city for people living in York or in Oxford!","display_sequence":"J","result":{"columns":["name","address","postal_code","city"],"values":[["William Jones","Park Road 3","OX1 3AC","Oxford"],["Sarah Taylor","Mill Lane 5","BN1 5AE","Oxford"],["David Wood","School Lane 3","BA1 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LDD!","display_sequence":"G","result":{"columns":["teacher"],"values":[["EN-005"],["EN-004"]]}},{"id":27,"description":"Retrieve person_id for students who have participated in the course with code Java1!","display_sequence":"H","result":{"columns":["student"],"values":[["EN-006"],["EN-008"],["EN-013"],["EN-014"],["EN-015"],["EN-019"],["EN-007"],["EN-011"],["EN-012"]]}},{"id":28,"description":"Retrieve person_id for students who have participated in the course with code DBM1!","display_sequence":"I","result":{"columns":["student"],"values":[["EN-006"],["EN-007"],["EN-008"],["EN-015"],["EN-010"],["EN-019"],["EN-011"],["EN-009"],["EN-016"],["EN-017"],["EN-020"]]}},{"id":29,"description":"Retrieve person_id for students who have participated in the course with code Java2!","display_sequence":"J","result":{"columns":["student"],"values":[["EN-007"],["EN-010"],["EN-011"],["EN-012"],["EN-014"],["EN-015"],["EN-019"],["EN-009"]]}},{"id":30,"description":"Retrieve person_id for students who have participated in the course with code LDD!","display_sequence":"K","result":{"columns":["student"],"values":[["EN-006"],["EN-012"],["EN-011"],["EN-013"],["EN-018"],["EN-016"],["EN-017"]]}}]},{"category_id":4,"display_number":4,"questions":[{"id":31,"description":"Retrieve person_id, name, and phone for teachers who have taught in the room with id 1!","display_sequence":"A","result":{"columns":["person_id","name","phone"],"values":[["EN-003","William Jones","01234567892"],["EN-002","John Brown","01234567891"],["EN-004","Mary Wilson","01234567893"],["EN-005","Sarah Taylor","01234567894"]]}},{"id":32,"description":"Retrieve person_id, name, and city for teachers who have taught in the room with id 2!","display_sequence":"B","result":{"columns":["person_id","name","city"],"values":[["EN-002","John Brown","Reading"],["EN-004","Mary Wilson","Cambridge"]]}},{"id":33,"description":"Retrieve person_id, name, address, and postal_code for teachers who have taught in the room with id 3!","display_sequence":"C","result":{"columns":["person_id","name","address","postal_code"],"values":[["EN-005","Sarah Taylor","Mill Lane 5","BN1 5AE"],["EN-004","Mary Wilson","High Street 4","CB2 4AD"],["EN-018","William White","Station Road 4","BA3 9AR"]]}},{"id":34,"description":"Retrieve person_id, name, and phone for teachers who have taught on the course with code Java1!","display_sequence":"D","result":{"columns":["person_id","name","phone"],"values":[["EN-002","John Brown","01234567891"],["EN-003","William Jones","01234567892"]]}},{"id":35,"description":"Retrieve person_id, name, and city for teachers who have taught on the course with code Java2!","display_sequence":"E","result":{"columns":["person_id","name","city"],"values":[["EN-002","John Brown","Reading"],["EN-018","William White","York"]]}},{"id":36,"description":"Retrieve name, address, postal_code, and city for teachers who have taught on the course with code DBM1!","display_sequence":"F","result":{"columns":["name","address","postal_code","city"],"values":[["Sarah Taylor","Mill Lane 5","BN1 5AE","Oxford"],["Mary Wilson","High Street 4","CB2 4AD","Cambridge"],["William White","Station Road 4","BA3 9AR","York"]]}},{"id":37,"description":"Retrieve person_id, name, and phone for teachers who have taught on the course with code LDD!","display_sequence":"G","result":{"columns":["person_id","name","phone"],"values":[["EN-005","Sarah Taylor","01234567894"],["EN-004","Mary Wilson","01234567893"]]}},{"id":38,"description":"Retrieve person_id, name, and city for teachers who have taught in the room with id 1!","display_sequence":"H","result":{"columns":["person_id","name","city"],"values":[["EN-003","William Jones","Oxford"],["EN-002","John Brown","Reading"],["EN-004","Mary Wilson","Cambridge"],["EN-005","Sarah Taylor","Oxford"]]}},{"id":39,"description":"Retrieve person_id, name, address, and postal_code for teachers who have taught in the room with id 2!","display_sequence":"I","result":{"columns":["person_id","name","address","postal_code"],"values":[["EN-002","John Brown","Oak Avenue 2","RG1 2AB"],["EN-004","Mary Wilson","High Street 4","CB2 4AD"]]}},{"id":40,"description":"Retrieve person_id, name, and phone for teachers who have taught on the course with code Java2!","display_sequence":"J","result":{"columns":["person_id","name","phone"],"values":[["EN-002","John Brown","01234567891"],["EN-018","William White","01234567907"]]}},{"id":41,"description":"Retrieve person_id, name, and city for teachers who have taught on the course with code LDD!","display_sequence":"K","result":{"columns":["person_id","name","city"],"values":[["EN-005","Sarah Taylor","Oxford"],["EN-004","Mary Wilson","Cambridge"]]}},{"id":42,"description":"Retrieve name, address, postal_code, and city for teachers who have taught on the course with code Java1!","display_sequence":"L","result":{"columns":["name","address","postal_code","city"],"values":[["John 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taught on the course with code LDD!","display_sequence":"G","result":{"columns":["person_id","name","office_room"],"values":[["EN-005","Sarah Taylor",622],["EN-004","Mary Wilson",605]]}}]},{"category_id":6,"display_number":6,"questions":[{"id":50,"description":"Retrieve person_id for students who have participated in a course instance in Jupiter!","display_sequence":"A","result":{"columns":["student"],"values":[["EN-009"],["EN-010"],["EN-007"],["EN-011"],["EN-008"],["EN-013"],["EN-019"],["EN-017"],["EN-016"],["EN-021"]]}},{"id":51,"description":"Retrieve person_id for students who have participated in a course instance in Orion!","display_sequence":"B","result":{"columns":["student"],"values":[["EN-007"],["EN-010"],["EN-011"],["EN-012"],["EN-013"],["EN-018"],["EN-014"],["EN-015"],["EN-019"]]}},{"id":52,"description":"Retrieve person_id for students who have participated in a course instance in Tellus!","display_sequence":"C","result":{"columns":["student"],"values":[["EN-006"],["EN-008"],["EN-013"],["EN-014"],["EN-015"],["EN-019"],["EN-009"],["EN-010"],["EN-012"]]}},{"id":53,"description":"Retrieve person_id for students who have participated in a course instance in Sirius!","display_sequence":"D","result":{"columns":["student"],"values":[["EN-006"],["EN-007"],["EN-008"],["EN-015"],["EN-012"],["EN-011"],["EN-009"],["EN-016"],["EN-017"],["EN-020"]]}}]},{"category_id":7,"display_number":7,"questions":[{"id":54,"description":"Retrieve person_id, name, and phone for students who have participated in a course instance in Jupiter!","display_sequence":"A","result":{"columns":["person_id","name","phone"],"values":[["EN-009","Robert Stone","01234567898"],["EN-010","David Wood","01234567899"],["EN-007","Anne Hall","01234567896"],["EN-011","Susan Blair","01234567900"],["EN-008","Emily Ford","01234567897"],["EN-013","Peter Grant","01234567902"],["EN-019","Jane 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Stone","Lake Drive 1","Bristol","01234567898"],["David Wood","School Lane 3","York","01234567899"],["Anne Hall","Elm Drive 3","Bristol","01234567896"],["Susan Blair","Birch Way 2","Bristol","01234567900"],["Emily Ford","River Road 4","Brighton","01234567897"],["Peter Grant","Hill Road 112","Bath","01234567902"],["Jane Bell","School Lane 12","York","01234567908"],["Jane Palmer","Harbour Lane 15b","Oxford","01234567906"],["Alice Cole","King Street 44","Oxford","01234567905"],["John Clark","High Street 63","Cambridge","01234567910"]]}},{"id":59,"description":"Retrieve name, address, postal_code, and city for students who have participated in a course instance in Orion!","display_sequence":"F","result":{"columns":["name","address","postal_code","city"],"values":[["Anne Hall","Elm Drive 3","YO1 7AG","Bristol"],["David Wood","School Lane 3","BA1 1AJ","York"],["Susan Blair","Birch Way 2","YO3 2AK","Bristol"],["George Hunt","Birch Way 24","YO4 3AL","Bristol"],["Peter Grant","Hill Road 112","OX2 4AM","Bath"],["William White","Station Road 4","BA3 9AR","York"],["Jane Bell","Bridge Street 5","BA2 5AN","York"],["Laura Miles","Valley Road 3","CB3 6AO","Cambridge"],["Jane Bell","School Lane 12","BA4 1AS","York"]]}},{"id":60,"description":"Retrieve name, address, city, and phone for students who have participated in a course instance in Tellus!","display_sequence":"G","result":{"columns":["name","address","city","phone"],"values":[["John Clark","Church Road 6","Brighton","01234567895"],["Emily Ford","River Road 4","Brighton","01234567897"],["Peter Grant","Hill Road 112","Bath","01234567902"],["Jane Bell","Bridge Street 5","York","01234567903"],["Laura Miles","Valley Road 3","Cambridge","01234567904"],["Jane Bell","School Lane 12","York","01234567908"],["Robert Stone","Lake Drive 1","Bristol","01234567898"],["David Wood","School Lane 3","York","01234567899"],["George Hunt","Birch Way 24","Bristol","01234567901"]]}},{"id":61,"description":"Retrieve name, address, postal_code, and city for students who have participated in a course instance in Sirius!","display_sequence":"H","result":{"columns":["name","address","postal_code","city"],"values":[["John Clark","Church Road 6","BS1 6AF","Brighton"],["Anne Hall","Elm Drive 3","YO1 7AG","Bristol"],["Emily Ford","River Road 4","BS2 8AH","Brighton"],["Laura Miles","Valley Road 3","CB3 6AO","Cambridge"],["George Hunt","Birch Way 24","YO4 3AL","Bristol"],["Susan Blair","Birch Way 2","YO3 2AK","Bristol"],["Robert Stone","Lake Drive 1","YO2 9AI","Bristol"],["Alice Cole","King Street 44","OX3 7AP","Oxford"],["Jane Palmer","Harbour Lane 15b","OX4 8AQ","Oxford"],["David Wood","School Lane 1","BA5 2AT","York"]]}}]},{"category_id":8,"display_number":8,"questions":[{"id":62,"description":"Retrieve the number of course instances each student has participated in! Show the student's person_id, the student's name, and the count!","display_sequence":"A","result":{"columns":["person_id","name","count"],"values":[["EN-001","James Smith",0],["EN-006","John Clark",4],["EN-007","Anne Hall",4],["EN-008","Emily Ford",5],["EN-009","Robert Stone",4],["EN-010","David Wood",5],["EN-011","Susan Blair",6],["EN-012","George Hunt",4],["EN-013","Peter Grant",6],["EN-014","Jane Bell",3],["EN-015","Laura Miles",5],["EN-016","Alice Cole",3],["EN-017","Jane Palmer",3],["EN-018","William White",1],["EN-019","Jane Bell",3],["EN-020","David Wood",1],["EN-021","John Clark",1]]},"alternative_results":[{"columns":["person_id","name","count"],"values":[["EN-006","John Clark",4],["EN-007","Anne Hall",4],["EN-008","Emily Ford",5],["EN-009","Robert Stone",4],["EN-010","David Wood",5],["EN-011","Susan Blair",6],["EN-012","George Hunt",4],["EN-013","Peter Grant",6],["EN-014","Jane Bell",3],["EN-015","Laura Miles",5],["EN-016","Alice Cole",3],["EN-017","Jane Palmer",3],["EN-018","William White",1],["EN-019","Jane Bell",3],["EN-020","David Wood",1],["EN-021","John Clark",1]]}]},{"id":63,"description":"Retrieve the number of course instances each room has been used for! Show the room's name, the room's capacity, and the count!","display_sequence":"B","result":{"columns":["name","capacity","count"],"values":[["Jupiter",12,6],["Orion",24,3],["Sirius",16,4],["Tellus",32,3],["Saturn",24,3]]},"alternative_results":[{"columns":["name","capacity","count"],"values":[["Jupiter",12,6],["Orion",24,3],["Sirius",16,4],["Tellus",32,3],["Saturn",24,3]]}]},{"id":64,"description":"Retrieve the number of course instances each course has had! Show the course's code, the course's name, and the count!","display_sequence":"C","result":{"columns":["course_code","name","count"],"values":[["DBM1","Database Methodology",4],["Java1","Java, Basic Course",5],["Java2","Java, Advanced Course",3],["LDD","Logical Database Design",3],["LOG1","Logic",3],["PDB","Physical Database Design",1]]},"alternative_results":[{"columns":["course_code","name","count"],"values":[["DBM1","Database Methodology",4],["Java1","Java, Basic Course",5],["Java2","Java, Advanced Course",3],["LDD","Logical Database Design",3],["LOG1","Logic",3],["PDB","Physical Database Design",1]]}]},{"id":65,"description":"Retrieve the number of course instances each teacher has held! Show the teacher's person_id, the teacher's name, and the count!","display_sequence":"D","result":{"columns":["person_id","name","count"],"values":[["EN-001","James Smith",0],["EN-002","John Brown",6],["EN-003","William Jones",3],["EN-004","Mary Wilson",4],["EN-005","Sarah Taylor",4],["EN-018","William White",2]]},"alternative_results":[{"columns":["person_id","name","count"],"values":[["EN-002","John Brown",6],["EN-003","William Jones",3],["EN-004","Mary Wilson",4],["EN-005","Sarah Taylor",4],["EN-018","William White",2]]}]},{"id":66,"description":"Retrieve the number of participating students for each course instance! Show the course instance's course_code and course name, the course instance's start_date, and the number of participating students!","display_sequence":"E","result":{"columns":["course","name","start_date","count"],"values":[["DBM1","Database Methodology","2008-04-02T00:00:00.000Z",4],["DBM1","Database Methodology","2009-01-28T00:00:00.000Z",3],["DBM1","Database Methodology","2010-02-15T00:00:00.000Z",3],["DBM1","Database Methodology","2010-09-22T00:00:00.000Z",4],["Java1","Java, Basic Course","2008-03-06T00:00:00.000Z",6],["Java1","Java, Basic Course","2008-05-06T00:00:00.000Z",2],["Java1","Java, Basic Course","2008-09-02T00:00:00.000Z",2],["Java1","Java, Basic Course","2010-05-01T00:00:00.000Z",3],["Java1","Java, Basic Course","2011-05-01T00:00:00.000Z",0],["Java2","Java, Advanced Course","2008-04-16T00:00:00.000Z",4],["Java2","Java, Advanced Course","2009-01-22T00:00:00.000Z",4],["Java2","Java, Advanced Course","2010-04-11T00:00:00.000Z",4],["LDD","Logical Database Design","2008-05-06T00:00:00.000Z",2],["LDD","Logical Database Design","2008-09-02T00:00:00.000Z",3],["LDD","Logical Database Design","2010-09-24T00:00:00.000Z",3],["LOG1","Logic","2008-04-16T00:00:00.000Z",2],["LOG1","Logic","2009-09-17T00:00:00.000Z",2],["LOG1","Logic","2010-05-01T00:00:00.000Z",4],["PDB","Physical Database Design","2008-05-09T00:00:00.000Z",3]]},"alternative_results":[{"columns":["course","name","start_date","count"],"values":[["DBM1","Database Methodology","2008-04-02T00:00:00.000Z",4],["DBM1","Database Methodology","2009-01-28T00:00:00.000Z",3],["DBM1","Database Methodology","2010-02-15T00:00:00.000Z",3],["DBM1","Database Methodology","2010-09-22T00:00:00.000Z",4],["Java1","Java, Basic Course","2008-03-06T00:00:00.000Z",6],["Java1","Java, Basic Course","2008-05-06T00:00:00.000Z",2],["Java1","Java, Basic Course","2008-09-02T00:00:00.000Z",2],["Java1","Java, Basic Course","2010-05-01T00:00:00.000Z",3],["Java2","Java, Advanced Course","2008-04-16T00:00:00.000Z",4],["Java2","Java, Advanced Course","2009-01-22T00:00:00.000Z",4],["Java2","Java, Advanced Course","2010-04-11T00:00:00.000Z",4],["LDD","Logical Database Design","2008-05-06T00:00:00.000Z",2],["LDD","Logical Database Design","2008-09-02T00:00:00.000Z",3],["LDD","Logical Database Design","2010-09-24T00:00:00.000Z",3],["LOG1","Logic","2008-04-16T00:00:00.000Z",2],["LOG1","Logic","2009-09-17T00:00:00.000Z",2],["LOG1","Logic","2010-05-01T00:00:00.000Z",4],["PDB","Physical Database Design","2008-05-09T00:00:00.000Z",3]]}]}]},{"category_id":9,"display_number":9,"questions":[{"id":67,"description":"I. Retrieve person_id, name, and phone as well as the number of course instances each teacher has held! II. Retrieve person_id, name, and phone for the teacher who has held the most course instances!","display_sequence":"A","result":{"columns":["person_id","name","phone"],"values":[["EN-002","John Brown","01234567891"]]}},{"id":68,"description":"I. Retrieve person_id, name, and phone as well as the number of course instances per student! II. Retrieve person_id, name, and phone for the student who has participated in the most course instances!","display_sequence":"B","result":{"columns":["person_id","name","phone"],"values":[["EN-011","Susan Blair","01234567900"],["EN-013","Peter Grant","01234567902"]]}},{"id":69,"description":"I. Retrieve course_code, name, and duration as well as the number of course instances per course! II. Retrieve course_code, name, and duration for the course that has had the most course instances!","display_sequence":"C","result":{"columns":["course_code","name","duration"],"values":[["Java1","Java, Basic Course",5]]}},{"id":70,"description":"I. Retrieve name and capacity as well as the number of course instances per room! II. Retrieve name and capacity for the room that has been used for the most course instances!","display_sequence":"D","result":{"columns":["name","capacity"],"values":[["Jupiter",12]]}},{"id":71,"description":"I. Retrieve course_code, course name, and start_date as well as the number of participants per course instance! II. Retrieve course_code, course name, and start_date for the course instance that has had the most participants!","display_sequence":"E","result":{"columns":["course","name","start_date"],"values":[["Java1","Java, Basic Course","2008-03-06T00:00:00.000Z"]]}}]},{"category_id":10,"display_number":10,"questions":[{"id":72,"description":"Retrieve person_id, name, and city for students who have participated in at least three DIFFERENT courses!","display_sequence":"A","result":{"columns":["person_id","name","city"],"values":[["EN-006","John Clark","Brighton"],["EN-007","Anne Hall","Bristol"],["EN-008","Emily Ford","Brighton"],["EN-009","Robert Stone","Bristol"],["EN-010","David Wood","York"],["EN-011","Susan Blair","Bristol"],["EN-012","George Hunt","Bristol"],["EN-013","Peter Grant","Bath"],["EN-015","Laura Miles","Cambridge"],["EN-016","Alice Cole","Oxford"],["EN-017","Jane Palmer","Oxford"],["EN-019","Jane Bell","York"]]}},{"id":73,"description":"Retrieve person_id, name, and phone for teachers who have held at least three DIFFERENT courses!","display_sequence":"B","result":{"columns":["person_id","name","phone"],"values":[["EN-002","John Brown","01234567891"],["EN-004","Mary Wilson","01234567893"],["EN-005","Sarah Taylor","01234567894"]]}},{"id":74,"description":"Retrieve person_id, name, and city for teachers who have held course instances in at least three DIFFERENT rooms!","display_sequence":"C","result":{"columns":["person_id","name","city"],"values":[["EN-002","John Brown","Reading"],["EN-003","William Jones","Oxford"],["EN-004","Mary Wilson","Cambridge"]]}},{"id":75,"description":"Retrieve name and capacity for rooms that have been used by at least three DIFFERENT teachers!","display_sequence":"D","result":{"columns":["name","capacity"],"values":[["Jupiter",12],["Sirius",16],["Tellus",32],["Saturn",24]]}},{"id":76,"description":"Retrieve name and capacity for rooms that have been used for course instances of at least three DIFFERENT courses!","display_sequence":"E","result":{"columns":["name","capacity"],"values":[["Jupiter",12]]}},{"id":77,"description":"Retrieve code, name, and price for courses that have been held in at least three DIFFERENT rooms!","display_sequence":"F","result":{"columns":["course_code","name","price"],"values":[["Java1","Java, Basic Course",6700],["LDD","Logical Database Design",6000]]}},{"id":78,"description":"Retrieve code, name, and price for courses that have been held by at least three DIFFERENT teachers!","display_sequence":"G","result":{"columns":["course_code","name","price"],"values":[["DBM1","Database Methodology",2800],["LOG1","Logic",4500]]}}]},{"category_id":11,"display_number":11,"questions":[{"id":79,"description":"Retrieve name and city for people who are not teachers!","display_sequence":"A","result":{"columns":["name","city"],"values":[["John Clark","Brighton"],["Anne Hall","Bristol"],["Emily Ford","Brighton"],["Robert Stone","Bristol"],["David Wood","York"],["Susan Blair","Bristol"],["George Hunt","Bristol"],["Peter Grant","Bath"],["Jane Bell","York"],["Laura Miles","Cambridge"],["Alice Cole","Oxford"],["Jane Palmer","Oxford"],["Jane Bell","York"],["David Wood","York"],["John Clark","Cambridge"]]}},{"id":80,"description":"Retrieve name and city for students who did not participate in any course instance with a start date during 2010!","display_sequence":"B","result":{"columns":["name","city"],"values":[["James Smith","Guildford"],["John Clark","Brighton"],["Anne Hall","Bristol"],["Jane Bell","York"],["William White","York"],["Jane Bell","York"]]}},{"id":81,"description":"Retrieve name and city for students who have not taken the course with code Java1!","display_sequence":"C","result":{"columns":["name","city"],"values":[["James Smith","Guildford"],["Robert Stone","Bristol"],["David Wood","York"],["Alice Cole","Oxford"],["Jane Palmer","Oxford"],["William White","York"],["David Wood","York"],["John Clark","Cambridge"]]}},{"id":82,"description":"Retrieve name and city for students who have not taken the course with code LOG1!","display_sequence":"D","result":{"columns":["name","city"],"values":[["James Smith","Guildford"],["John Clark","Brighton"],["Anne Hall","Bristol"],["Emily Ford","Brighton"],["Susan Blair","Bristol"],["George Hunt","Bristol"],["Jane Bell","York"],["Laura Miles","Cambridge"],["William White","York"],["Jane Bell","York"],["David Wood","York"]]}}]},{"category_id":12,"display_number":12,"questions":[{"id":83,"description":"Retrieve person_id, name, office_room, and phone for teachers who have never held a course instance for the course \"Java, Advanced Course\"!","display_sequence":"A","result":{"columns":["person_id","name","office_room","phone"],"values":[["EN-001","James Smith",634,"01234567890"],["EN-003","William Jones",603,"01234567892"],["EN-004","Mary Wilson",605,"01234567893"],["EN-005","Sarah Taylor",622,"01234567894"]]}},{"id":84,"description":"Retrieve person_id, name, and city for students with disabilities who have not taken the course \"Logical Database Design\"!","display_sequence":"B","result":{"columns":["person_id","name","city"],"values":[["EN-007","Anne Hall","Bristol"],["EN-015","Laura Miles","Cambridge"],["EN-020","David Wood","York"]]}},{"id":85,"description":"Retrieve name and capacity for rooms that have never been used for a course instance of the course \"Logical Database Design\"!","display_sequence":"C","result":{"columns":["name","capacity"],"values":[["Jupiter",12],["Tellus",32]]}},{"id":86,"description":"Retrieve name and capacity for rooms that have never been used by the teacher John Brown!","display_sequence":"D","result":{"columns":["name","capacity"],"values":[["Sirius",16]]}}]},{"category_id":13,"display_number":13,"questions":[{"id":87,"description":"Retrieve person_id, name, and phone for students who have taken the course \"Physical Database Design\" or the course \"Logical Database Design\" (or both)!","display_sequence":"A","result":{"columns":["person_id","name","phone"],"values":[["EN-006","John Clark","01234567895"],["EN-008","Emily Ford","01234567897"],["EN-011","Susan Blair","01234567900"],["EN-012","George Hunt","01234567901"],["EN-013","Peter Grant","01234567902"],["EN-016","Alice Cole","01234567905"],["EN-017","Jane Palmer","01234567906"],["EN-018","William White","01234567907"]]}},{"id":88,"description":"Retrieve person_id, name, and city for students who have participated in course instances in room Orion or in room Jupiter (or in both)!","display_sequence":"B","result":{"columns":["person_id","name","city"],"values":[["EN-007","Anne Hall","Bristol"],["EN-008","Emily Ford","Brighton"],["EN-009","Robert Stone","Bristol"],["EN-010","David Wood","York"],["EN-011","Susan Blair","Bristol"],["EN-012","George Hunt","Bristol"],["EN-013","Peter Grant","Bath"],["EN-014","Jane Bell","York"],["EN-015","Laura Miles","Cambridge"],["EN-016","Alice Cole","Oxford"],["EN-017","Jane Palmer","Oxford"],["EN-018","William White","York"],["EN-019","Jane Bell","York"],["EN-021","John Clark","Cambridge"]]}},{"id":89,"description":"Retrieve person_id, name, and phone for teachers who have held the course \"Logic\" or the course \"Database Methodology\" (or both)!","display_sequence":"C","result":{"columns":["person_id","name","phone"],"values":[["EN-002","John Brown","01234567891"],["EN-003","William Jones","01234567892"],["EN-004","Mary Wilson","01234567893"],["EN-005","Sarah Taylor","01234567894"],["EN-018","William White","01234567907"]]}},{"id":90,"description":"Retrieve name and capacity for rooms that have been used by teacher John Brown or by teacher William Jones (or by both)!","display_sequence":"D","result":{"columns":["name","capacity"],"values":[["Jupiter",12],["Orion",24],["Saturn",24],["Tellus",32]]}},{"id":91,"description":"Retrieve name and capacity for rooms that have been used for the course \"Logic\" or for the course \"Java, Advanced Course\" (or for both)!","display_sequence":"E","result":{"columns":["name","capacity"],"values":[["Jupiter",12],["Orion",24],["Tellus",32]]}}]},{"category_id":14,"display_number":14,"questions":[{"id":92,"description":"Retrieve person_id, name, and city for students who have taken both the course \"Physical Database Design\" and the course \"Logical Database Design\"!","display_sequence":"A","result":{"columns":["person_id","name","city"],"values":[["EN-011","Susan Blair","Bristol"],["EN-013","Peter Grant","Bath"]]}},{"id":93,"description":"Retrieve person_id, name, and phone for students who have participated in course instances in both room Orion and room Jupiter!","display_sequence":"B","result":{"columns":["person_id","name","phone"],"values":[["EN-007","Anne Hall","01234567896"],["EN-010","David Wood","01234567899"],["EN-011","Susan Blair","01234567900"],["EN-013","Peter Grant","01234567902"],["EN-019","Jane Bell","01234567908"]]}},{"id":94,"description":"Retrieve person_id, name, and office_room for teachers who have held both the course \"Logical Database Design\" and the course \"Database Methodology\"!","display_sequence":"C","result":{"columns":["person_id","name","office_room"],"values":[["EN-004","Mary Wilson",605],["EN-005","Sarah Taylor",622]]}},{"id":95,"description":"Retrieve name and capacity for rooms that have been used by both teacher Mary Wilson and teacher John Brown!","display_sequence":"D","result":{"columns":["name","capacity"],"values":[["Jupiter",12],["Orion",24],["Saturn",24]]}},{"id":96,"description":"Retrieve name and capacity for rooms that have been used for both the course \"Logic\" and the course \"Java, Basic Course\"!","display_sequence":"E","result":{"columns":["name","capacity"],"values":[["Jupiter",12]]}},{"id":97,"description":"Retrieve person_id, name, office_room, and phone for teachers who have held course instances in both room Jupiter and room Sirius!","display_sequence":"F","result":{"columns":["person_id","name","office_room","phone"],"values":[["EN-004","Mary Wilson",605,"01234567893"],["EN-005","Sarah Taylor",622,"01234567894"]]}}]},{"category_id":15,"display_number":15,"questions":[{"id":98,"description":"Retrieve person_id, name, and phone for students who have participated in course instances led by all teachers from Oxford!","display_sequence":"A","result":{"columns":["person_id","name","phone"],"values":[["EN-006","John Clark","01234567895"],["EN-010","David Wood","01234567899"],["EN-012","George Hunt","01234567901"],["EN-009","Robert Stone","01234567898"]]}},{"id":99,"description":"Retrieve name and capacity for rooms that have been used by all teachers from Oxford!","display_sequence":"B","result":{"columns":["name","capacity"],"values":[["Jupiter",12]]}},{"id":100,"description":"Retrieve name and capacity for rooms that have been used for all courses that cost under 5000!","display_sequence":"C","result":{"columns":["name","capacity"],"values":[["Jupiter",12]]}},{"id":101,"description":"Retrieve person_id, name, and phone for teachers who have held course instances of all courses of at most three weeks!","display_sequence":"D","result":{"columns":["person_id","name","phone"],"values":[["EN-005","Sarah Taylor","01234567894"]]}}]},{"category_id":16,"display_number":16,"questions":[{"id":102,"description":"Retrieve the number of students from Bristol for each course instance! Show course_code, start_date, and the number of students! Course instances without students from Bristol should also be shown!","display_sequence":"A","result":{"columns":["course","start_date","count"],"values":[["DBM1","2008-04-02T00:00:00.000Z",1],["DBM1","2009-01-28T00:00:00.000Z",0],["DBM1","2010-02-15T00:00:00.000Z",1],["DBM1","2010-09-22T00:00:00.000Z",1],["Java1","2008-03-06T00:00:00.000Z",0],["Java1","2008-05-06T00:00:00.000Z",2],["Java1","2008-09-02T00:00:00.000Z",0],["Java1","2010-05-01T00:00:00.000Z",2],["Java1","2011-05-01T00:00:00.000Z",0],["Java2","2008-04-16T00:00:00.000Z",3],["Java2","2009-01-22T00:00:00.000Z",1],["Java2","2010-04-11T00:00:00.000Z",2],["LDD","2008-05-06T00:00:00.000Z",1],["LDD","2008-09-02T00:00:00.000Z",1],["LDD","2010-09-24T00:00:00.000Z",0],["LOG1","2008-04-16T00:00:00.000Z",1],["LOG1","2009-09-17T00:00:00.000Z",1],["LOG1","2010-05-01T00:00:00.000Z",0],["PDB","2008-05-09T00:00:00.000Z",1]]}},{"id":103,"description":"Retrieve the number of times each student has participated in the course \"Logical Database Design\"! Show the student's person_id, name, and city as well as the count! Students who have not participated in the course should also be shown!","display_sequence":"B","result":{"columns":["person_id","name","city","count"],"values":[["EN-001","James Smith","Guildford",0],["EN-006","John Clark","Brighton",1],["EN-007","Anne Hall","Bristol",0],["EN-008","Emily Ford","Brighton",0],["EN-009","Robert Stone","Bristol",0],["EN-010","David Wood","York",0],["EN-011","Susan Blair","Bristol",1],["EN-012","George Hunt","Bristol",1],["EN-013","Peter Grant","Bath",2],["EN-014","Jane Bell","York",0],["EN-015","Laura Miles","Cambridge",0],["EN-016","Alice Cole","Oxford",1],["EN-017","Jane Palmer","Oxford",1],["EN-018","William White","York",1],["EN-019","Jane Bell","York",0],["EN-020","David Wood","York",0],["EN-021","John Clark","Cambridge",0]]}},{"id":104,"description":"Retrieve the number of times each student has participated in the course \"Java, Basic Course\"! Show the student's person_id, name, and city as well as the count! Students who have not participated in the course should also be shown!","display_sequence":"C","result":{"columns":["person_id","name","city","count"],"values":[["EN-001","James Smith","Guildford",0],["EN-006","John Clark","Brighton",2],["EN-007","Anne Hall","Bristol",1],["EN-008","Emily Ford","Brighton",1],["EN-009","Robert Stone","Bristol",0],["EN-010","David Wood","York",0],["EN-011","Susan Blair","Bristol",2],["EN-012","George Hunt","Bristol",1],["EN-013","Peter Grant","Bath",2],["EN-014","Jane Bell","York",2],["EN-015","Laura Miles","Cambridge",1],["EN-016","Alice Cole","Oxford",0],["EN-017","Jane Palmer","Oxford",0],["EN-018","William White","York",0],["EN-019","Jane Bell","York",1],["EN-020","David Wood","York",0],["EN-021","John Clark","Cambridge",0]]}},{"id":105,"description":"Retrieve the number of times each teacher has held the course \"Java, Basic Course\"! Show the teacher's person_id, name, phone, and office_room as well as the count! Teachers who have not held the course should also be shown!","display_sequence":"D","result":{"columns":["person_id","name","phone","office_room","count"],"values":[["EN-001","James Smith","01234567890",634,0],["EN-002","John Brown","01234567891",604,3],["EN-003","William Jones","01234567892",603,2],["EN-004","Mary Wilson","01234567893",605,0],["EN-005","Sarah Taylor","01234567894",622,0],["EN-018","William White","01234567907",558,0]]}},{"id":106,"description":"Retrieve the number of course instances each teacher has held with a start date during the year 2010! Show the teacher's person_id, name, phone, and office_room as well as the count! Teachers who have not held course instances during 2010 should also be shown!","display_sequence":"E","result":{"columns":["person_id","name","phone","office_room","count"],"values":[["EN-001","James Smith","01234567890",634,0],["EN-002","John Brown","01234567891",604,1],["EN-003","William Jones","01234567892",603,1],["EN-004","Mary Wilson","01234567893",605,2],["EN-005","Sarah Taylor","01234567894",622,0],["EN-018","William White","01234567907",558,2]]}},{"id":107,"description":"Retrieve the number of course instances with a start date during the year 2008 for each student! Show the student's person_id, name, phone, and city as well as the count! Students who have not participated in course instances during 2008 should also be shown!","display_sequence":"F","result":{"columns":["person_id","name","phone","city","count"],"values":[["EN-001","James Smith","01234567890","Guildford",0],["EN-006","John Clark","01234567895","Brighton",4],["EN-007","Anne Hall","01234567896","Bristol",3],["EN-008","Emily Ford","01234567897","Brighton",3],["EN-009","Robert Stone","01234567898","Bristol",1],["EN-010","David Wood","01234567899","York",2],["EN-011","Susan Blair","01234567900","Bristol",4],["EN-012","George Hunt","01234567901","Bristol",2],["EN-013","Peter Grant","01234567902","Bath",3],["EN-014","Jane Bell","01234567903","York",2],["EN-015","Laura Miles","01234567904","Cambridge",2],["EN-016","Alice Cole","01234567905","Oxford",0],["EN-017","Jane Palmer","01234567906","Oxford",0],["EN-018","William White","01234567907","York",1],["EN-019","Jane Bell","01234567908","York",1],["EN-020","David Wood","01234567909","York",0],["EN-021","John Clark","01234567910","Cambridge",0]]}}]},{"category_id":17,"display_number":17,"questions":[{"id":108,"description":"Retrieve information about course instances in which no student from York has participated! Show course_code, course name, start_date, room name, and teacher name!","display_sequence":"A","result":{"columns":["course","name","start_date","name","name"],"values":[["DBM1","Database Methodology","2008-04-02T00:00:00.000Z","Sirius","Sarah Taylor"],["Java1","Java, Basic Course","2008-05-06T00:00:00.000Z","Jupiter","John Brown"],["LDD","Logical Database Design","2008-05-06T00:00:00.000Z","Sirius","Sarah Taylor"],["PDB","Physical Database Design","2008-05-09T00:00:00.000Z","Jupiter","Mary Wilson"],["LOG1","Logic","2009-09-17T00:00:00.000Z","Jupiter","Sarah Taylor"],["DBM1","Database Methodology","2010-02-15T00:00:00.000Z","Sirius","Mary Wilson"],["Java1","Java, Basic Course","2010-05-01T00:00:00.000Z","Saturn","William Jones"],["LDD","Logical Database Design","2010-09-24T00:00:00.000Z","Saturn","Mary Wilson"],["Java1","Java, Basic Course","2011-05-01T00:00:00.000Z","Saturn","John Brown"]]}},{"id":109,"description":"Retrieve information about course instances in which no student from Bristol has participated! Show course_code, course name, start_date, room name, and teacher name!","display_sequence":"B","result":{"columns":["course","name","start_date","name","name"],"values":[["Java1","Java, Basic Course","2008-03-06T00:00:00.000Z","Tellus","John Brown"],["Java1","Java, Basic Course","2008-09-02T00:00:00.000Z","Tellus","William Jones"],["DBM1","Database Methodology","2009-01-28T00:00:00.000Z","Jupiter","Sarah Taylor"],["LOG1","Logic","2010-05-01T00:00:00.000Z","Jupiter","John Brown"],["LDD","Logical Database Design","2010-09-24T00:00:00.000Z","Saturn","Mary Wilson"],["Java1","Java, Basic Course","2011-05-01T00:00:00.000Z","Saturn","John Brown"]]}},{"id":110,"description":"Retrieve information about course instances in which no student with a disability has participated! Show course_code, course name, start_date, room name, and teacher name!","display_sequence":"C","result":{"columns":["course","name","start_date","name","name"],"values":[["LOG1","Logic","2008-04-16T00:00:00.000Z","Jupiter","William Jones"],["LDD","Logical Database Design","2008-05-06T00:00:00.000Z","Sirius","Sarah Taylor"],["Java1","Java, Basic Course","2008-09-02T00:00:00.000Z","Tellus","William Jones"],["DBM1","Database Methodology","2009-01-28T00:00:00.000Z","Jupiter","Sarah Taylor"],["LOG1","Logic","2010-05-01T00:00:00.000Z","Jupiter","John Brown"],["Java1","Java, Basic Course","2011-05-01T00:00:00.000Z","Saturn","John Brown"]]}}]}]} \ No newline at end of file +{"language":"en","engine":"sqlite","defaultQuery":"SELECT * FROM Student;","questions":[{"category_id":1,"display_number":1,"questions":[{"id":1,"description":"Retrieve person_id, name, address, and postal_code for people living in York!","display_sequence":"A","result":{"columns":["person_id","name","address","postal_code"],"values":[["EN-010","David Wood","School Lane 3","BA1 1AJ"],["EN-014","Jane Bell","Bridge Street 5","BA2 5AN"],["EN-018","William White","Station Road 4","BA3 9AR"],["EN-019","Jane Bell","School Lane 12","BA4 1AS"],["EN-020","David Wood","School Lane 1","BA5 2AT"],["EN-022","George Grant","Lake Drive 14","YO5 4AV"]]}},{"id":2,"description":"Retrieve person_id, name, and phone for people living in York!","display_sequence":"B","result":{"columns":["person_id","name","phone"],"values":[["EN-010","David Wood","01234567899"],["EN-014","Jane Bell","01234567903"],["EN-018","William White","01234567907"],["EN-019","Jane Bell","01234567908"],["EN-020","David Wood","01234567909"],["EN-022","George Grant","01234567911"]]}},{"id":3,"description":"Retrieve person_id, name, address, and postal_code for people living in Bristol!","display_sequence":"C","result":{"columns":["person_id","name","address","postal_code"],"values":[["EN-007","Anne Hall","Elm Drive 3","YO1 7AG"],["EN-009","Robert Stone","Lake Drive 1","YO2 9AI"],["EN-011","Susan Blair","Birch Way 2","YO3 2AK"],["EN-012","George Hunt","Birch Way 24","YO4 3AL"]]}},{"id":4,"description":"Retrieve person_id, name, and phone for people living in Bristol!","display_sequence":"D","result":{"columns":["person_id","name","phone"],"values":[["EN-007","Anne Hall","01234567896"],["EN-009","Robert Stone","01234567898"],["EN-011","Susan Blair","01234567900"],["EN-012","George Hunt","01234567901"]]}},{"id":5,"description":"Retrieve name, address, postal_code, and phone for people living in York!","display_sequence":"E","result":{"columns":["name","address","postal_code","phone"],"values":[["David Wood","School Lane 3","BA1 1AJ","01234567899"],["Jane Bell","Bridge Street 5","BA2 5AN","01234567903"],["William White","Station Road 4","BA3 9AR","01234567907"],["Jane Bell","School Lane 12","BA4 1AS","01234567908"],["David Wood","School Lane 1","BA5 2AT","01234567909"],["George Grant","Lake Drive 14","YO5 4AV","01234567911"]]}},{"id":6,"description":"Retrieve name, address, postal_code, and phone for people living in Bristol!","display_sequence":"F","result":{"columns":["name","address","postal_code","phone"],"values":[["Anne Hall","Elm Drive 3","YO1 7AG","01234567896"],["Robert Stone","Lake Drive 1","YO2 9AI","01234567898"],["Susan Blair","Birch Way 2","YO3 2AK","01234567900"],["George Hunt","Birch Way 24","YO4 3AL","01234567901"]]}},{"id":7,"description":"Retrieve course_code, name, and price for courses of 3 weeks!","display_sequence":"G","result":{"columns":["course_code","name","price"],"values":[["LOG1","Logic",4500]]}},{"id":8,"description":"Retrieve course_code, name, and price for courses of 4 weeks!","display_sequence":"H","result":{"columns":["course_code","name","price"],"values":[["Java2","Java, Advanced Course",6000],["LDD","Logical Database Design",6000]]}}]},{"category_id":2,"display_number":2,"questions":[{"id":9,"description":"Retrieve person_id, name, and city for people living in York or in Bristol!","display_sequence":"A","result":{"columns":["person_id","name","city"],"values":[["EN-007","Anne Hall","Bristol"],["EN-009","Robert Stone","Bristol"],["EN-010","David Wood","York"],["EN-011","Susan Blair","Bristol"],["EN-012","George Hunt","Bristol"],["EN-014","Jane Bell","York"],["EN-018","William White","York"],["EN-019","Jane Bell","York"],["EN-020","David Wood","York"],["EN-022","George Grant","York"]]}},{"id":10,"description":"Retrieve person_id, name, and phone for people living in York or in Brighton!","display_sequence":"B","result":{"columns":["person_id","name","phone"],"values":[["EN-006","John Clark","01234567895"],["EN-008","Emily Ford","01234567897"],["EN-010","David Wood","01234567899"],["EN-014","Jane Bell","01234567903"],["EN-018","William White","01234567907"],["EN-019","Jane Bell","01234567908"],["EN-020","David Wood","01234567909"],["EN-022","George Grant","01234567911"],["EN-024","Laura Palmer","01234567913"]]}},{"id":11,"description":"Retrieve person_id, name, and city for people living in Bristol or in Cambridge!","display_sequence":"C","result":{"columns":["person_id","name","city"],"values":[["EN-004","Mary Wilson","Cambridge"],["EN-007","Anne Hall","Bristol"],["EN-009","Robert Stone","Bristol"],["EN-011","Susan Blair","Bristol"],["EN-012","George Hunt","Bristol"],["EN-015","Laura Miles","Cambridge"],["EN-021","John Clark","Cambridge"]]}},{"id":12,"description":"Retrieve person_id, name, and phone for people living in Bristol or in Brighton!","display_sequence":"D","result":{"columns":["person_id","name","phone"],"values":[["EN-006","John Clark","01234567895"],["EN-007","Anne Hall","01234567896"],["EN-008","Emily Ford","01234567897"],["EN-009","Robert Stone","01234567898"],["EN-011","Susan Blair","01234567900"],["EN-012","George Hunt","01234567901"],["EN-024","Laura Palmer","01234567913"]]}},{"id":13,"description":"Retrieve name, address, postal_code, and city for people living in York or in Cambridge!","display_sequence":"E","result":{"columns":["name","address","postal_code","city"],"values":[["Mary Wilson","High Street 4","CB2 4AD","Cambridge"],["David Wood","School Lane 3","BA1 1AJ","York"],["Jane Bell","Bridge Street 5","BA2 5AN","York"],["Laura Miles","Valley Road 3","CB3 6AO","Cambridge"],["William White","Station Road 4","BA3 9AR","York"],["Jane Bell","School Lane 12","BA4 1AS","York"],["David Wood","School Lane 1","BA5 2AT","York"],["John Clark","High Street 63","CB4 3AU","Cambridge"],["George Grant","Lake Drive 14","YO5 4AV","York"]]}},{"id":14,"description":"Retrieve name, address, postal_code, and city for people living in Bristol or in York!","display_sequence":"F","result":{"columns":["name","address","postal_code","city"],"values":[["Anne Hall","Elm Drive 3","YO1 7AG","Bristol"],["Robert Stone","Lake Drive 1","YO2 9AI","Bristol"],["David Wood","School Lane 3","BA1 1AJ","York"],["Susan Blair","Birch Way 2","YO3 2AK","Bristol"],["George Hunt","Birch Way 24","YO4 3AL","Bristol"],["Jane Bell","Bridge Street 5","BA2 5AN","York"],["William White","Station Road 4","BA3 9AR","York"],["Jane Bell","School Lane 12","BA4 1AS","York"],["David Wood","School Lane 1","BA5 2AT","York"],["George Grant","Lake Drive 14","YO5 4AV","York"]]}},{"id":15,"description":"Retrieve person_id, name, and phone for people living in Cambridge or in Brighton!","display_sequence":"G","result":{"columns":["person_id","name","phone"],"values":[["EN-004","Mary Wilson","01234567893"],["EN-006","John Clark","01234567895"],["EN-008","Emily Ford","01234567897"],["EN-015","Laura Miles","01234567904"],["EN-021","John Clark","01234567910"],["EN-024","Laura Palmer","01234567913"]]}},{"id":16,"description":"Retrieve person_id, name, and city for people living in York or in Cambridge!","display_sequence":"H","result":{"columns":["person_id","name","city"],"values":[["EN-004","Mary Wilson","Cambridge"],["EN-010","David Wood","York"],["EN-014","Jane Bell","York"],["EN-015","Laura Miles","Cambridge"],["EN-018","William White","York"],["EN-019","Jane Bell","York"],["EN-020","David Wood","York"],["EN-021","John Clark","Cambridge"],["EN-022","George Grant","York"]]}},{"id":17,"description":"Retrieve person_id, name, and phone for people living in Cambridge or in Oxford!","display_sequence":"I","result":{"columns":["person_id","name","phone"],"values":[["EN-003","William Jones","01234567892"],["EN-004","Mary Wilson","01234567893"],["EN-005","Sarah Taylor","01234567894"],["EN-015","Laura Miles","01234567904"],["EN-016","Alice Cole","01234567905"],["EN-017","Jane Palmer","01234567906"],["EN-021","John Clark","01234567910"],["EN-023","Peter Miles","01234567912"]]}},{"id":18,"description":"Retrieve name, address, postal_code, and city for people living in York or in Oxford!","display_sequence":"J","result":{"columns":["name","address","postal_code","city"],"values":[["William Jones","Park Road 3","OX1 3AC","Oxford"],["Sarah Taylor","Mill Lane 5","BN1 5AE","Oxford"],["David Wood","School Lane 3","BA1 1AJ","York"],["Jane Bell","Bridge Street 5","BA2 5AN","York"],["Alice Cole","King Street 44","OX3 7AP","Oxford"],["Jane Palmer","Harbour Lane 15b","OX4 8AQ","Oxford"],["William White","Station Road 4","BA3 9AR","York"],["Jane Bell","School Lane 12","BA4 1AS","York"],["David Wood","School Lane 1","BA5 2AT","York"],["George Grant","Lake Drive 14","YO5 4AV","York"],["Peter Miles","Birch Way 7","CB6 5AW","Oxford"]]}},{"id":19,"description":"Retrieve course_code, name, and price for courses of 3 or 4 weeks!","display_sequence":"K","result":{"columns":["course_code","name","price"],"values":[["Java2","Java, Advanced Course",6000],["LDD","Logical Database 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Java2!","display_sequence":"E","result":{"columns":["teacher"],"values":[["EN-002"],["EN-018"]]}},{"id":25,"description":"Retrieve person_id for teachers who have taught on the course with code DBM1!","display_sequence":"F","result":{"columns":["teacher"],"values":[["EN-005"],["EN-004"],["EN-018"]]}},{"id":26,"description":"Retrieve person_id for teachers who have taught on the course with code LDD!","display_sequence":"G","result":{"columns":["teacher"],"values":[["EN-005"],["EN-004"]]}},{"id":27,"description":"Retrieve person_id for students who have participated in the course with code Java1!","display_sequence":"H","result":{"columns":["student"],"values":[["EN-006"],["EN-008"],["EN-013"],["EN-014"],["EN-015"],["EN-019"],["EN-007"],["EN-011"],["EN-012"]]}},{"id":28,"description":"Retrieve person_id for students who have participated in the course with code DBM1!","display_sequence":"I","result":{"columns":["student"],"values":[["EN-006"],["EN-007"],["EN-008"],["EN-015"],["EN-010"],["EN-019"],["EN-011"],["EN-009"],["EN-016"],["EN-017"],["EN-020"]]}},{"id":29,"description":"Retrieve person_id for students who have participated in the course with code Java2!","display_sequence":"J","result":{"columns":["student"],"values":[["EN-007"],["EN-010"],["EN-011"],["EN-012"],["EN-014"],["EN-015"],["EN-019"],["EN-009"]]}},{"id":30,"description":"Retrieve person_id for students who have participated in the course with code LDD!","display_sequence":"K","result":{"columns":["student"],"values":[["EN-006"],["EN-012"],["EN-011"],["EN-013"],["EN-018"],["EN-016"],["EN-017"]]}}]},{"category_id":4,"display_number":4,"questions":[{"id":31,"description":"Retrieve person_id, name, and phone for teachers who have taught in the room with id 1!","display_sequence":"A","result":{"columns":["person_id","name","phone"],"values":[["EN-003","William 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Java1!","display_sequence":"D","result":{"columns":["person_id","name","phone"],"values":[["EN-002","John Brown","01234567891"],["EN-003","William Jones","01234567892"]]}},{"id":35,"description":"Retrieve person_id, name, and city for teachers who have taught on the course with code Java2!","display_sequence":"E","result":{"columns":["person_id","name","city"],"values":[["EN-002","John Brown","Reading"],["EN-018","William White","York"]]}},{"id":36,"description":"Retrieve name, address, postal_code, and city for teachers who have taught on the course with code DBM1!","display_sequence":"F","result":{"columns":["name","address","postal_code","city"],"values":[["Sarah Taylor","Mill Lane 5","BN1 5AE","Oxford"],["Mary Wilson","High Street 4","CB2 4AD","Cambridge"],["William White","Station Road 4","BA3 9AR","York"]]}},{"id":37,"description":"Retrieve person_id, name, and phone for teachers who have taught on the course with code LDD!","display_sequence":"G","result":{"columns":["person_id","name","phone"],"values":[["EN-005","Sarah Taylor","01234567894"],["EN-004","Mary Wilson","01234567893"]]}},{"id":38,"description":"Retrieve person_id, name, and city for teachers who have taught in the room with id 1!","display_sequence":"H","result":{"columns":["person_id","name","city"],"values":[["EN-003","William Jones","Oxford"],["EN-002","John Brown","Reading"],["EN-004","Mary Wilson","Cambridge"],["EN-005","Sarah Taylor","Oxford"]]}},{"id":39,"description":"Retrieve person_id, name, address, and postal_code for teachers who have taught in the room with id 2!","display_sequence":"I","result":{"columns":["person_id","name","address","postal_code"],"values":[["EN-002","John Brown","Oak Avenue 2","RG1 2AB"],["EN-004","Mary Wilson","High Street 4","CB2 4AD"]]}},{"id":40,"description":"Retrieve person_id, name, and phone for teachers who have taught on the course with code Java2!","display_sequence":"J","result":{"columns":["person_id","name","phone"],"values":[["EN-002","John Brown","01234567891"],["EN-018","William White","01234567907"]]}},{"id":41,"description":"Retrieve person_id, name, and city for teachers who have taught on the course with code LDD!","display_sequence":"K","result":{"columns":["person_id","name","city"],"values":[["EN-005","Sarah Taylor","Oxford"],["EN-004","Mary Wilson","Cambridge"]]}},{"id":42,"description":"Retrieve name, address, postal_code, and city for teachers who have taught on the course with code Java1!","display_sequence":"L","result":{"columns":["name","address","postal_code","city"],"values":[["John Brown","Oak Avenue 2","RG1 2AB","Reading"],["William Jones","Park Road 3","OX1 3AC","Oxford"]]}}]},{"category_id":5,"display_number":5,"questions":[{"id":43,"description":"Retrieve person_id, name, and office_room for teachers who have taught in the room with id 1!","display_sequence":"A","result":{"columns":["person_id","name","office_room"],"values":[["EN-003","William Jones",603],["EN-002","John Brown",604],["EN-004","Mary Wilson",605],["EN-005","Sarah Taylor",622]]}},{"id":44,"description":"Retrieve person_id, name, and office_room for teachers who have taught in the room with id 2!","display_sequence":"B","result":{"columns":["person_id","name","office_room"],"values":[["EN-002","John Brown",604],["EN-004","Mary Wilson",605]]}},{"id":45,"description":"Retrieve person_id, name, and office_room for teachers who have taught in the room with id 3!","display_sequence":"C","result":{"columns":["person_id","name","office_room"],"values":[["EN-005","Sarah Taylor",622],["EN-004","Mary Wilson",605],["EN-018","William White",558]]}},{"id":46,"description":"Retrieve person_id, name, and office_room for teachers who have taught on the course with code Java1!","display_sequence":"D","result":{"columns":["person_id","name","office_room"],"values":[["EN-002","John Brown",604],["EN-003","William Jones",603]]}},{"id":47,"description":"Retrieve person_id, name, and office_room for teachers who have taught on the course with code Java2!","display_sequence":"E","result":{"columns":["person_id","name","office_room"],"values":[["EN-002","John Brown",604],["EN-018","William White",558]]}},{"id":48,"description":"Retrieve person_id, name, and office_room for teachers who have taught on the course with code DBM1!","display_sequence":"F","result":{"columns":["person_id","name","office_room"],"values":[["EN-005","Sarah Taylor",622],["EN-004","Mary Wilson",605],["EN-018","William White",558]]}},{"id":49,"description":"Retrieve person_id, name, and office_room for teachers who have taught on the course with code LDD!","display_sequence":"G","result":{"columns":["person_id","name","office_room"],"values":[["EN-005","Sarah Taylor",622],["EN-004","Mary Wilson",605]]}}]},{"category_id":6,"display_number":6,"questions":[{"id":50,"description":"Retrieve person_id for students who have participated in a course instance in Jupiter!","display_sequence":"A","result":{"columns":["student"],"values":[["EN-009"],["EN-010"],["EN-007"],["EN-011"],["EN-008"],["EN-013"],["EN-019"],["EN-017"],["EN-016"],["EN-021"]]}},{"id":51,"description":"Retrieve person_id for students who have participated in a course instance in Orion!","display_sequence":"B","result":{"columns":["student"],"values":[["EN-007"],["EN-010"],["EN-011"],["EN-012"],["EN-013"],["EN-018"],["EN-014"],["EN-015"],["EN-019"]]}},{"id":52,"description":"Retrieve person_id for students who have participated in a course instance in Tellus!","display_sequence":"C","result":{"columns":["student"],"values":[["EN-006"],["EN-008"],["EN-013"],["EN-014"],["EN-015"],["EN-019"],["EN-009"],["EN-010"],["EN-012"]]}},{"id":53,"description":"Retrieve person_id for students who have participated in a course instance in Sirius!","display_sequence":"D","result":{"columns":["student"],"values":[["EN-006"],["EN-007"],["EN-008"],["EN-015"],["EN-012"],["EN-011"],["EN-009"],["EN-016"],["EN-017"],["EN-020"]]}}]},{"category_id":7,"display_number":7,"questions":[{"id":54,"description":"Retrieve person_id, name, and phone for students who have participated in a course instance in Jupiter!","display_sequence":"A","result":{"columns":["person_id","name","phone"],"values":[["EN-009","Robert Stone","01234567898"],["EN-010","David Wood","01234567899"],["EN-007","Anne Hall","01234567896"],["EN-011","Susan Blair","01234567900"],["EN-008","Emily Ford","01234567897"],["EN-013","Peter Grant","01234567902"],["EN-019","Jane Bell","01234567908"],["EN-017","Jane Palmer","01234567906"],["EN-016","Alice Cole","01234567905"],["EN-021","John Clark","01234567910"]]}},{"id":55,"description":"Retrieve person_id, name, and city for students who have participated in a course instance in Orion!","display_sequence":"B","result":{"columns":["person_id","name","city"],"values":[["EN-007","Anne Hall","Bristol"],["EN-010","David Wood","York"],["EN-011","Susan Blair","Bristol"],["EN-012","George Hunt","Bristol"],["EN-013","Peter Grant","Bath"],["EN-018","William White","York"],["EN-014","Jane Bell","York"],["EN-015","Laura Miles","Cambridge"],["EN-019","Jane Bell","York"]]}},{"id":56,"description":"Retrieve person_id, name, and phone for students who have participated in a course instance in Tellus!","display_sequence":"C","result":{"columns":["person_id","name","phone"],"values":[["EN-006","John Clark","01234567895"],["EN-008","Emily Ford","01234567897"],["EN-013","Peter Grant","01234567902"],["EN-014","Jane Bell","01234567903"],["EN-015","Laura Miles","01234567904"],["EN-019","Jane Bell","01234567908"],["EN-009","Robert Stone","01234567898"],["EN-010","David Wood","01234567899"],["EN-012","George Hunt","01234567901"]]}},{"id":57,"description":"Retrieve person_id, name, and city for students who have participated in a course instance in Sirius!","display_sequence":"D","result":{"columns":["person_id","name","city"],"values":[["EN-006","John Clark","Brighton"],["EN-007","Anne Hall","Bristol"],["EN-008","Emily Ford","Brighton"],["EN-015","Laura Miles","Cambridge"],["EN-012","George Hunt","Bristol"],["EN-011","Susan Blair","Bristol"],["EN-009","Robert Stone","Bristol"],["EN-016","Alice Cole","Oxford"],["EN-017","Jane Palmer","Oxford"],["EN-020","David Wood","York"]]}},{"id":58,"description":"Retrieve name, address, city, and phone for students who have participated in a course instance in Jupiter!","display_sequence":"E","result":{"columns":["name","address","city","phone"],"values":[["Robert Stone","Lake Drive 1","Bristol","01234567898"],["David Wood","School Lane 3","York","01234567899"],["Anne Hall","Elm Drive 3","Bristol","01234567896"],["Susan Blair","Birch Way 2","Bristol","01234567900"],["Emily Ford","River Road 4","Brighton","01234567897"],["Peter 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city, and phone for students who have participated in a course instance in Tellus!","display_sequence":"G","result":{"columns":["name","address","city","phone"],"values":[["John Clark","Church Road 6","Brighton","01234567895"],["Emily Ford","River Road 4","Brighton","01234567897"],["Peter Grant","Hill Road 112","Bath","01234567902"],["Jane Bell","Bridge Street 5","York","01234567903"],["Laura Miles","Valley Road 3","Cambridge","01234567904"],["Jane Bell","School Lane 12","York","01234567908"],["Robert Stone","Lake Drive 1","Bristol","01234567898"],["David Wood","School Lane 3","York","01234567899"],["George Hunt","Birch Way 24","Bristol","01234567901"]]}},{"id":61,"description":"Retrieve name, address, postal_code, and city for students who have participated in a course instance in Sirius!","display_sequence":"H","result":{"columns":["name","address","postal_code","city"],"values":[["John Clark","Church Road 6","BS1 6AF","Brighton"],["Anne Hall","Elm Drive 3","YO1 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Show the student's person_id, the student's name, and the count!","display_sequence":"A","result":{"columns":["person_id","name","count"],"values":[["EN-001","James Smith",0],["EN-006","John Clark",4],["EN-007","Anne Hall",4],["EN-008","Emily Ford",5],["EN-009","Robert Stone",4],["EN-010","David Wood",5],["EN-011","Susan Blair",6],["EN-012","George Hunt",4],["EN-013","Peter Grant",6],["EN-014","Jane Bell",3],["EN-015","Laura Miles",5],["EN-016","Alice Cole",3],["EN-017","Jane Palmer",3],["EN-018","William White",1],["EN-019","Jane Bell",3],["EN-020","David Wood",1],["EN-021","John Clark",1]]},"alternative_results":[{"columns":["person_id","name","count"],"values":[["EN-006","John Clark",4],["EN-007","Anne Hall",4],["EN-008","Emily Ford",5],["EN-009","Robert Stone",4],["EN-010","David Wood",5],["EN-011","Susan Blair",6],["EN-012","George Hunt",4],["EN-013","Peter Grant",6],["EN-014","Jane Bell",3],["EN-015","Laura Miles",5],["EN-016","Alice Cole",3],["EN-017","Jane Palmer",3],["EN-018","William White",1],["EN-019","Jane Bell",3],["EN-020","David Wood",1],["EN-021","John Clark",1]]}]},{"id":63,"description":"Retrieve the number of course instances each room has been used for! Show the room's name, the room's capacity, and the count!","display_sequence":"B","result":{"columns":["name","capacity","count"],"values":[["Jupiter",12,6],["Orion",24,3],["Sirius",16,4],["Tellus",32,3],["Saturn",24,3]]},"alternative_results":[{"columns":["name","capacity","count"],"values":[["Jupiter",12,6],["Orion",24,3],["Sirius",16,4],["Tellus",32,3],["Saturn",24,3]]}]},{"id":64,"description":"Retrieve the number of course instances each course has had! Show the course's code, the course's name, and the count!","display_sequence":"C","result":{"columns":["course_code","name","count"],"values":[["DBM1","Database Methodology",4],["Java1","Java, Basic Course",5],["Java2","Java, Advanced Course",3],["LDD","Logical Database Design",3],["LOG1","Logic",3],["PDB","Physical Database Design",1]]},"alternative_results":[{"columns":["course_code","name","count"],"values":[["DBM1","Database Methodology",4],["Java1","Java, Basic Course",5],["Java2","Java, Advanced Course",3],["LDD","Logical Database Design",3],["LOG1","Logic",3],["PDB","Physical Database Design",1]]}]},{"id":65,"description":"Retrieve the number of course instances each teacher has held! Show the teacher's person_id, the teacher's name, and the count!","display_sequence":"D","result":{"columns":["person_id","name","count"],"values":[["EN-001","James Smith",0],["EN-002","John Brown",6],["EN-003","William Jones",3],["EN-004","Mary Wilson",4],["EN-005","Sarah Taylor",4],["EN-018","William White",2]]},"alternative_results":[{"columns":["person_id","name","count"],"values":[["EN-002","John Brown",6],["EN-003","William Jones",3],["EN-004","Mary Wilson",4],["EN-005","Sarah Taylor",4],["EN-018","William White",2]]}]},{"id":66,"description":"Retrieve the number of participating students for each course instance! Show the course instance's course_code and course name, the course instance's start_date, and the number of participating students!","display_sequence":"E","result":{"columns":["course","name","start_date","count"],"values":[["DBM1","Database Methodology","2008-04-02T00:00:00.000Z",4],["DBM1","Database Methodology","2009-01-28T00:00:00.000Z",3],["DBM1","Database Methodology","2010-02-15T00:00:00.000Z",3],["DBM1","Database Methodology","2010-09-22T00:00:00.000Z",4],["Java1","Java, Basic Course","2008-03-06T00:00:00.000Z",6],["Java1","Java, Basic Course","2008-05-06T00:00:00.000Z",2],["Java1","Java, Basic Course","2008-09-02T00:00:00.000Z",2],["Java1","Java, Basic Course","2010-05-01T00:00:00.000Z",3],["Java1","Java, Basic Course","2011-05-01T00:00:00.000Z",0],["Java2","Java, Advanced Course","2008-04-16T00:00:00.000Z",4],["Java2","Java, Advanced Course","2009-01-22T00:00:00.000Z",4],["Java2","Java, Advanced Course","2010-04-11T00:00:00.000Z",4],["LDD","Logical Database Design","2008-05-06T00:00:00.000Z",2],["LDD","Logical Database Design","2008-09-02T00:00:00.000Z",3],["LDD","Logical Database Design","2010-09-24T00:00:00.000Z",3],["LOG1","Logic","2008-04-16T00:00:00.000Z",2],["LOG1","Logic","2009-09-17T00:00:00.000Z",2],["LOG1","Logic","2010-05-01T00:00:00.000Z",4],["PDB","Physical Database Design","2008-05-09T00:00:00.000Z",3]]},"alternative_results":[{"columns":["course","name","start_date","count"],"values":[["DBM1","Database Methodology","2008-04-02T00:00:00.000Z",4],["DBM1","Database Methodology","2009-01-28T00:00:00.000Z",3],["DBM1","Database Methodology","2010-02-15T00:00:00.000Z",3],["DBM1","Database Methodology","2010-09-22T00:00:00.000Z",4],["Java1","Java, Basic Course","2008-03-06T00:00:00.000Z",6],["Java1","Java, Basic Course","2008-05-06T00:00:00.000Z",2],["Java1","Java, Basic Course","2008-09-02T00:00:00.000Z",2],["Java1","Java, Basic Course","2010-05-01T00:00:00.000Z",3],["Java2","Java, Advanced Course","2008-04-16T00:00:00.000Z",4],["Java2","Java, Advanced Course","2009-01-22T00:00:00.000Z",4],["Java2","Java, Advanced Course","2010-04-11T00:00:00.000Z",4],["LDD","Logical Database Design","2008-05-06T00:00:00.000Z",2],["LDD","Logical Database Design","2008-09-02T00:00:00.000Z",3],["LDD","Logical Database Design","2010-09-24T00:00:00.000Z",3],["LOG1","Logic","2008-04-16T00:00:00.000Z",2],["LOG1","Logic","2009-09-17T00:00:00.000Z",2],["LOG1","Logic","2010-05-01T00:00:00.000Z",4],["PDB","Physical Database Design","2008-05-09T00:00:00.000Z",3]]}]}]},{"category_id":9,"display_number":9,"questions":[{"id":67,"description":"I. Retrieve person_id, name, and phone as well as the number of course instances each teacher has held! II. Retrieve person_id, name, and phone for the teacher who has held the most course instances!","display_sequence":"A","result":{"columns":["person_id","name","phone"],"values":[["EN-002","John Brown","01234567891"]]}},{"id":68,"description":"I. Retrieve person_id, name, and phone as well as the number of course instances per student! II. Retrieve person_id, name, and phone for the student who has participated in the most course instances!","display_sequence":"B","result":{"columns":["person_id","name","phone"],"values":[["EN-011","Susan Blair","01234567900"],["EN-013","Peter Grant","01234567902"]]}},{"id":69,"description":"I. Retrieve course_code, name, and duration as well as the number of course instances per course! II. Retrieve course_code, name, and duration for the course that has had the most course instances!","display_sequence":"C","result":{"columns":["course_code","name","duration"],"values":[["Java1","Java, Basic Course",5]]}},{"id":70,"description":"I. Retrieve name and capacity as well as the number of course instances per room! II. Retrieve name and capacity for the room that has been used for the most course instances!","display_sequence":"D","result":{"columns":["name","capacity"],"values":[["Jupiter",12]]}},{"id":71,"description":"I. Retrieve course_code, course name, and start_date as well as the number of participants per course instance! II. Retrieve course_code, course name, and start_date for the course instance that has had the most participants!","display_sequence":"E","result":{"columns":["course","name","start_date"],"values":[["Java1","Java, Basic Course","2008-03-06T00:00:00.000Z"]]}}]},{"category_id":10,"display_number":10,"questions":[{"id":72,"description":"Retrieve person_id, name, and city for students who have participated in at least three DIFFERENT courses!","display_sequence":"A","result":{"columns":["person_id","name","city"],"values":[["EN-006","John Clark","Brighton"],["EN-007","Anne Hall","Bristol"],["EN-008","Emily Ford","Brighton"],["EN-009","Robert Stone","Bristol"],["EN-010","David Wood","York"],["EN-011","Susan Blair","Bristol"],["EN-012","George Hunt","Bristol"],["EN-013","Peter Grant","Bath"],["EN-015","Laura Miles","Cambridge"],["EN-016","Alice Cole","Oxford"],["EN-017","Jane Palmer","Oxford"],["EN-019","Jane Bell","York"]]}},{"id":73,"description":"Retrieve person_id, name, and phone for teachers who have held at least three DIFFERENT courses!","display_sequence":"B","result":{"columns":["person_id","name","phone"],"values":[["EN-002","John Brown","01234567891"],["EN-004","Mary Wilson","01234567893"],["EN-005","Sarah Taylor","01234567894"]]}},{"id":74,"description":"Retrieve person_id, name, and city for teachers who have held course instances in at least three DIFFERENT rooms!","display_sequence":"C","result":{"columns":["person_id","name","city"],"values":[["EN-002","John Brown","Reading"],["EN-003","William Jones","Oxford"],["EN-004","Mary Wilson","Cambridge"]]}},{"id":75,"description":"Retrieve name and capacity for rooms that have been used by at least three DIFFERENT teachers!","display_sequence":"D","result":{"columns":["name","capacity"],"values":[["Jupiter",12],["Sirius",16],["Tellus",32],["Saturn",24]]}},{"id":76,"description":"Retrieve name and capacity for rooms that have been used for course instances of at least three DIFFERENT courses!","display_sequence":"E","result":{"columns":["name","capacity"],"values":[["Jupiter",12]]}},{"id":77,"description":"Retrieve code, name, and price for courses that have been held in at least three DIFFERENT rooms!","display_sequence":"F","result":{"columns":["course_code","name","price"],"values":[["Java1","Java, Basic Course",6700],["LDD","Logical Database Design",6000]]}},{"id":78,"description":"Retrieve code, name, and price for courses that have been held by at least three DIFFERENT teachers!","display_sequence":"G","result":{"columns":["course_code","name","price"],"values":[["DBM1","Database Methodology",2800],["LOG1","Logic",4500]]}}]},{"category_id":11,"display_number":11,"questions":[{"id":79,"description":"Retrieve name and city for people who are not teachers!","display_sequence":"A","result":{"columns":["name","city"],"values":[["John Clark","Brighton"],["Anne Hall","Bristol"],["Emily Ford","Brighton"],["Robert Stone","Bristol"],["David Wood","York"],["Susan Blair","Bristol"],["George Hunt","Bristol"],["Peter Grant","Bath"],["Jane Bell","York"],["Laura Miles","Cambridge"],["Alice Cole","Oxford"],["Jane Palmer","Oxford"],["Jane Bell","York"],["David Wood","York"],["John Clark","Cambridge"],["George Grant","York"],["Peter Miles","Oxford"],["Laura Palmer","Brighton"],["Susan Stone","Guildford"]]}},{"id":80,"description":"Retrieve name and city for students who did not participate in any course instance with a start date during 2010!","display_sequence":"B","result":{"columns":["name","city"],"values":[["James Smith","Guildford"],["John Clark","Brighton"],["Anne Hall","Bristol"],["Jane Bell","York"],["William White","York"],["Jane Bell","York"]]}},{"id":81,"description":"Retrieve name and city for students who have not taken the course with code Java1!","display_sequence":"C","result":{"columns":["name","city"],"values":[["James Smith","Guildford"],["Robert Stone","Bristol"],["David Wood","York"],["Alice Cole","Oxford"],["Jane Palmer","Oxford"],["William White","York"],["David Wood","York"],["John Clark","Cambridge"]]}},{"id":82,"description":"Retrieve name and city for students who have not taken the course with code LOG1!","display_sequence":"D","result":{"columns":["name","city"],"values":[["James Smith","Guildford"],["John Clark","Brighton"],["Anne Hall","Bristol"],["Emily Ford","Brighton"],["Susan Blair","Bristol"],["George Hunt","Bristol"],["Jane Bell","York"],["Laura Miles","Cambridge"],["William White","York"],["Jane Bell","York"],["David Wood","York"]]}}]},{"category_id":12,"display_number":12,"questions":[{"id":83,"description":"Retrieve person_id, name, office_room, and phone for teachers who have never held a course instance for the course \"Java, Advanced Course\"!","display_sequence":"A","result":{"columns":["person_id","name","office_room","phone"],"values":[["EN-001","James Smith",634,"01234567890"],["EN-003","William Jones",603,"01234567892"],["EN-004","Mary Wilson",605,"01234567893"],["EN-005","Sarah Taylor",622,"01234567894"]]}},{"id":84,"description":"Retrieve person_id, name, and city for students with disabilities who have not taken the course \"Logical Database Design\"!","display_sequence":"B","result":{"columns":["person_id","name","city"],"values":[["EN-007","Anne Hall","Bristol"],["EN-015","Laura Miles","Cambridge"],["EN-020","David Wood","York"]]}},{"id":85,"description":"Retrieve name and capacity for rooms that have never been used for a course instance of the course \"Logical Database Design\"!","display_sequence":"C","result":{"columns":["name","capacity"],"values":[["Jupiter",12],["Tellus",32]]}},{"id":86,"description":"Retrieve name and capacity for rooms that have never been used by the teacher John Brown!","display_sequence":"D","result":{"columns":["name","capacity"],"values":[["Sirius",16]]}}]},{"category_id":13,"display_number":13,"questions":[{"id":87,"description":"Retrieve person_id, name, and phone for students who have taken the course \"Physical Database Design\" or the course \"Logical Database Design\" (or both)!","display_sequence":"A","result":{"columns":["person_id","name","phone"],"values":[["EN-006","John Clark","01234567895"],["EN-008","Emily Ford","01234567897"],["EN-011","Susan Blair","01234567900"],["EN-012","George Hunt","01234567901"],["EN-013","Peter Grant","01234567902"],["EN-016","Alice Cole","01234567905"],["EN-017","Jane Palmer","01234567906"],["EN-018","William White","01234567907"]]}},{"id":88,"description":"Retrieve person_id, name, and city for students who have participated in course instances in room Orion or in room Jupiter (or in both)!","display_sequence":"B","result":{"columns":["person_id","name","city"],"values":[["EN-007","Anne Hall","Bristol"],["EN-008","Emily Ford","Brighton"],["EN-009","Robert Stone","Bristol"],["EN-010","David Wood","York"],["EN-011","Susan Blair","Bristol"],["EN-012","George Hunt","Bristol"],["EN-013","Peter Grant","Bath"],["EN-014","Jane Bell","York"],["EN-015","Laura Miles","Cambridge"],["EN-016","Alice Cole","Oxford"],["EN-017","Jane Palmer","Oxford"],["EN-018","William White","York"],["EN-019","Jane Bell","York"],["EN-021","John Clark","Cambridge"]]}},{"id":89,"description":"Retrieve person_id, name, and phone for teachers who have held the course \"Logic\" or the course \"Database Methodology\" (or both)!","display_sequence":"C","result":{"columns":["person_id","name","phone"],"values":[["EN-002","John Brown","01234567891"],["EN-003","William Jones","01234567892"],["EN-004","Mary Wilson","01234567893"],["EN-005","Sarah Taylor","01234567894"],["EN-018","William White","01234567907"]]}},{"id":90,"description":"Retrieve name and capacity for rooms that have been used by teacher John Brown or by teacher William Jones (or by both)!","display_sequence":"D","result":{"columns":["name","capacity"],"values":[["Jupiter",12],["Orion",24],["Saturn",24],["Tellus",32]]}},{"id":91,"description":"Retrieve name and capacity for rooms that have been used for the course \"Logic\" or for the course \"Java, Advanced Course\" (or for both)!","display_sequence":"E","result":{"columns":["name","capacity"],"values":[["Jupiter",12],["Orion",24],["Tellus",32]]}}]},{"category_id":14,"display_number":14,"questions":[{"id":92,"description":"Retrieve person_id, name, and city for students who have taken both the course \"Physical Database Design\" and the course \"Logical Database Design\"!","display_sequence":"A","result":{"columns":["person_id","name","city"],"values":[["EN-011","Susan Blair","Bristol"],["EN-013","Peter Grant","Bath"]]}},{"id":93,"description":"Retrieve person_id, name, and phone for students who have participated in course instances in both room Orion and room Jupiter!","display_sequence":"B","result":{"columns":["person_id","name","phone"],"values":[["EN-007","Anne Hall","01234567896"],["EN-010","David Wood","01234567899"],["EN-011","Susan Blair","01234567900"],["EN-013","Peter Grant","01234567902"],["EN-019","Jane Bell","01234567908"]]}},{"id":94,"description":"Retrieve person_id, name, and office_room for teachers who have held both the course \"Logical Database Design\" and the course \"Database Methodology\"!","display_sequence":"C","result":{"columns":["person_id","name","office_room"],"values":[["EN-004","Mary Wilson",605],["EN-005","Sarah Taylor",622]]}},{"id":95,"description":"Retrieve name and capacity for rooms that have been used by both teacher Mary Wilson and teacher John Brown!","display_sequence":"D","result":{"columns":["name","capacity"],"values":[["Jupiter",12],["Orion",24],["Saturn",24]]}},{"id":96,"description":"Retrieve name and capacity for rooms that have been used for both the course \"Logic\" and the course \"Java, Basic Course\"!","display_sequence":"E","result":{"columns":["name","capacity"],"values":[["Jupiter",12]]}},{"id":97,"description":"Retrieve person_id, name, office_room, and phone for teachers who have held course instances in both room Jupiter and room Sirius!","display_sequence":"F","result":{"columns":["person_id","name","office_room","phone"],"values":[["EN-004","Mary Wilson",605,"01234567893"],["EN-005","Sarah Taylor",622,"01234567894"]]}}]},{"category_id":15,"display_number":15,"questions":[{"id":98,"description":"Retrieve person_id, name, and phone for students who have participated in course instances led by all teachers from Oxford!","display_sequence":"A","result":{"columns":["person_id","name","phone"],"values":[["EN-006","John Clark","01234567895"],["EN-010","David Wood","01234567899"],["EN-012","George Hunt","01234567901"],["EN-009","Robert Stone","01234567898"]]}},{"id":99,"description":"Retrieve name and capacity for rooms that have been used by all teachers from Oxford!","display_sequence":"B","result":{"columns":["name","capacity"],"values":[["Jupiter",12]]}},{"id":100,"description":"Retrieve name and capacity for rooms that have been used for all courses that cost under 5000!","display_sequence":"C","result":{"columns":["name","capacity"],"values":[["Jupiter",12]]}},{"id":101,"description":"Retrieve person_id, name, and phone for teachers who have held course instances of all courses of at most three weeks!","display_sequence":"D","result":{"columns":["person_id","name","phone"],"values":[["EN-005","Sarah Taylor","01234567894"]]}}]},{"category_id":16,"display_number":16,"questions":[{"id":102,"description":"Retrieve the number of students from Bristol for each course instance! Show course_code, start_date, and the number of students! Course instances without students from Bristol should also be shown!","display_sequence":"A","result":{"columns":["course","start_date","count"],"values":[["DBM1","2008-04-02T00:00:00.000Z",1],["DBM1","2009-01-28T00:00:00.000Z",0],["DBM1","2010-02-15T00:00:00.000Z",1],["DBM1","2010-09-22T00:00:00.000Z",1],["Java1","2008-03-06T00:00:00.000Z",0],["Java1","2008-05-06T00:00:00.000Z",2],["Java1","2008-09-02T00:00:00.000Z",0],["Java1","2010-05-01T00:00:00.000Z",2],["Java1","2011-05-01T00:00:00.000Z",0],["Java2","2008-04-16T00:00:00.000Z",3],["Java2","2009-01-22T00:00:00.000Z",1],["Java2","2010-04-11T00:00:00.000Z",2],["LDD","2008-05-06T00:00:00.000Z",1],["LDD","2008-09-02T00:00:00.000Z",1],["LDD","2010-09-24T00:00:00.000Z",0],["LOG1","2008-04-16T00:00:00.000Z",1],["LOG1","2009-09-17T00:00:00.000Z",1],["LOG1","2010-05-01T00:00:00.000Z",0],["PDB","2008-05-09T00:00:00.000Z",1]]}},{"id":103,"description":"Retrieve the number of times each student has participated in the course \"Logical Database Design\"! Show the student's person_id, name, and city as well as the count! Students who have not participated in the course should also be shown!","display_sequence":"B","result":{"columns":["person_id","name","city","count"],"values":[["EN-001","James Smith","Guildford",0],["EN-006","John Clark","Brighton",1],["EN-007","Anne Hall","Bristol",0],["EN-008","Emily Ford","Brighton",0],["EN-009","Robert Stone","Bristol",0],["EN-010","David Wood","York",0],["EN-011","Susan Blair","Bristol",1],["EN-012","George Hunt","Bristol",1],["EN-013","Peter Grant","Bath",2],["EN-014","Jane Bell","York",0],["EN-015","Laura Miles","Cambridge",0],["EN-016","Alice Cole","Oxford",1],["EN-017","Jane Palmer","Oxford",1],["EN-018","William White","York",1],["EN-019","Jane Bell","York",0],["EN-020","David Wood","York",0],["EN-021","John Clark","Cambridge",0]]}},{"id":104,"description":"Retrieve the number of times each student has participated in the course \"Java, Basic Course\"! Show the student's person_id, name, and city as well as the count! Students who have not participated in the course should also be shown!","display_sequence":"C","result":{"columns":["person_id","name","city","count"],"values":[["EN-001","James Smith","Guildford",0],["EN-006","John Clark","Brighton",2],["EN-007","Anne Hall","Bristol",1],["EN-008","Emily Ford","Brighton",1],["EN-009","Robert Stone","Bristol",0],["EN-010","David Wood","York",0],["EN-011","Susan Blair","Bristol",2],["EN-012","George Hunt","Bristol",1],["EN-013","Peter Grant","Bath",2],["EN-014","Jane Bell","York",2],["EN-015","Laura Miles","Cambridge",1],["EN-016","Alice Cole","Oxford",0],["EN-017","Jane Palmer","Oxford",0],["EN-018","William White","York",0],["EN-019","Jane Bell","York",1],["EN-020","David Wood","York",0],["EN-021","John Clark","Cambridge",0]]}},{"id":105,"description":"Retrieve the number of times each teacher has held the course \"Java, Basic Course\"! Show the teacher's person_id, name, phone, and office_room as well as the count! Teachers who have not held the course should also be shown!","display_sequence":"D","result":{"columns":["person_id","name","phone","office_room","count"],"values":[["EN-001","James Smith","01234567890",634,0],["EN-002","John Brown","01234567891",604,3],["EN-003","William Jones","01234567892",603,2],["EN-004","Mary Wilson","01234567893",605,0],["EN-005","Sarah Taylor","01234567894",622,0],["EN-018","William White","01234567907",558,0]]}},{"id":106,"description":"Retrieve the number of course instances each teacher has held with a start date during the year 2010! Show the teacher's person_id, name, phone, and office_room as well as the count! Teachers who have not held course instances during 2010 should also be shown!","display_sequence":"E","result":{"columns":["person_id","name","phone","office_room","count"],"values":[["EN-001","James Smith","01234567890",634,0],["EN-002","John Brown","01234567891",604,1],["EN-003","William Jones","01234567892",603,1],["EN-004","Mary Wilson","01234567893",605,2],["EN-005","Sarah Taylor","01234567894",622,0],["EN-018","William White","01234567907",558,2]]}},{"id":107,"description":"Retrieve the number of course instances with a start date during the year 2008 for each student! Show the student's person_id, name, phone, and city as well as the count! Students who have not participated in course instances during 2008 should also be shown!","display_sequence":"F","result":{"columns":["person_id","name","phone","city","count"],"values":[["EN-001","James Smith","01234567890","Guildford",0],["EN-006","John Clark","01234567895","Brighton",4],["EN-007","Anne Hall","01234567896","Bristol",3],["EN-008","Emily Ford","01234567897","Brighton",3],["EN-009","Robert Stone","01234567898","Bristol",1],["EN-010","David Wood","01234567899","York",2],["EN-011","Susan Blair","01234567900","Bristol",4],["EN-012","George Hunt","01234567901","Bristol",2],["EN-013","Peter Grant","01234567902","Bath",3],["EN-014","Jane Bell","01234567903","York",2],["EN-015","Laura Miles","01234567904","Cambridge",2],["EN-016","Alice Cole","01234567905","Oxford",0],["EN-017","Jane Palmer","01234567906","Oxford",0],["EN-018","William White","01234567907","York",1],["EN-019","Jane Bell","01234567908","York",1],["EN-020","David Wood","01234567909","York",0],["EN-021","John Clark","01234567910","Cambridge",0]]}}]},{"category_id":17,"display_number":17,"questions":[{"id":108,"description":"Retrieve information about course instances in which no student from York has participated! Show course_code, course name, start_date, room name, and teacher name!","display_sequence":"A","result":{"columns":["course","name","start_date","name","name"],"values":[["DBM1","Database Methodology","2008-04-02T00:00:00.000Z","Sirius","Sarah Taylor"],["Java1","Java, Basic Course","2008-05-06T00:00:00.000Z","Jupiter","John Brown"],["LDD","Logical Database Design","2008-05-06T00:00:00.000Z","Sirius","Sarah Taylor"],["PDB","Physical Database Design","2008-05-09T00:00:00.000Z","Jupiter","Mary Wilson"],["LOG1","Logic","2009-09-17T00:00:00.000Z","Jupiter","Sarah Taylor"],["DBM1","Database Methodology","2010-02-15T00:00:00.000Z","Sirius","Mary Wilson"],["Java1","Java, Basic Course","2010-05-01T00:00:00.000Z","Saturn","William Jones"],["LDD","Logical Database Design","2010-09-24T00:00:00.000Z","Saturn","Mary Wilson"],["Java1","Java, Basic Course","2011-05-01T00:00:00.000Z","Saturn","John Brown"]]}},{"id":109,"description":"Retrieve information about course instances in which no student from Bristol has participated! Show course_code, course name, start_date, room name, and teacher name!","display_sequence":"B","result":{"columns":["course","name","start_date","name","name"],"values":[["Java1","Java, Basic Course","2008-03-06T00:00:00.000Z","Tellus","John Brown"],["Java1","Java, Basic Course","2008-09-02T00:00:00.000Z","Tellus","William Jones"],["DBM1","Database Methodology","2009-01-28T00:00:00.000Z","Jupiter","Sarah Taylor"],["LOG1","Logic","2010-05-01T00:00:00.000Z","Jupiter","John Brown"],["LDD","Logical Database Design","2010-09-24T00:00:00.000Z","Saturn","Mary Wilson"],["Java1","Java, Basic Course","2011-05-01T00:00:00.000Z","Saturn","John Brown"]]}},{"id":110,"description":"Retrieve information about course instances in which no student with a disability has participated! Show course_code, course name, start_date, room name, and teacher name!","display_sequence":"C","result":{"columns":["course","name","start_date","name","name"],"values":[["LOG1","Logic","2008-04-16T00:00:00.000Z","Jupiter","William Jones"],["LDD","Logical Database Design","2008-05-06T00:00:00.000Z","Sirius","Sarah Taylor"],["Java1","Java, Basic Course","2008-09-02T00:00:00.000Z","Tellus","William Jones"],["DBM1","Database Methodology","2009-01-28T00:00:00.000Z","Jupiter","Sarah Taylor"],["LOG1","Logic","2010-05-01T00:00:00.000Z","Jupiter","John Brown"],["Java1","Java, Basic Course","2011-05-01T00:00:00.000Z","Saturn","John Brown"]]}}]}]} \ No newline at end of file diff --git a/public/languages/sv-pg/data.sql b/public/languages/sv-pg/data.sql new file mode 100644 index 0000000..8ba2430 --- /dev/null +++ b/public/languages/sv-pg/data.sql @@ -0,0 +1,145 @@ +CREATE TABLE Person (personnummer TEXT NOT NULL, namn TEXT NOT NULL, adress TEXT NOT NULL, postnr TEXT NOT NULL, ort TEXT NOT NULL, telefon TEXT NOT NULL, PRIMARY KEY (personnummer)); +CREATE TABLE Rum (id INTEGER NOT NULL, namn TEXT NOT NULL, antalplatser INTEGER NOT NULL, PRIMARY KEY (id)); +CREATE UNIQUE INDEX rum_namn ON Rum (namn); +CREATE TABLE Student (personnummer TEXT NOT NULL, funktionshindrad BOOLEAN NOT NULL, CONSTRAINT STUDENT_PK PRIMARY KEY (personnummer), CONSTRAINT Student_Person_FK FOREIGN KEY (personnummer) REFERENCES Person (personnummer) ON DELETE RESTRICT ON UPDATE CASCADE); +CREATE TABLE Lärare (personnummer TEXT NOT NULL, tjänsterum INTEGER NOT NULL, CONSTRAINT teacher_pk PRIMARY KEY (personnummer), CONSTRAINT fk_teacher_person FOREIGN KEY (personnummer) REFERENCES Person (personnummer) ON DELETE RESTRICT ON UPDATE CASCADE); +CREATE TABLE Kurs (kurskod TEXT NOT NULL, namn TEXT NOT NULL, längd INTEGER NOT NULL, pris INTEGER NOT NULL, beskrivning TEXT NOT NULL, PRIMARY KEY (kurskod)); +CREATE UNIQUE INDEX kurs_ben ON Kurs (namn); +CREATE TABLE Kurstillfälle (kurs TEXT NOT NULL, startdatum DATE NOT NULL, lärare TEXT NOT NULL, rum INTEGER NOT NULL, CONSTRAINT courseinstance_pk PRIMARY KEY (kurs, startdatum), CONSTRAINT fk_courseinstance_course FOREIGN KEY (kurs) REFERENCES Kurs (kurskod) ON DELETE RESTRICT ON UPDATE CASCADE, CONSTRAINT fk_courseinstance_teacher FOREIGN KEY (lärare) REFERENCES Lärare (personnummer) ON DELETE RESTRICT ON UPDATE CASCADE, CONSTRAINT fk_courseinstance_room FOREIGN KEY (rum) REFERENCES Rum (id) ON DELETE RESTRICT ON UPDATE CASCADE); +CREATE TABLE Deltagande (student TEXT NOT NULL, kurs TEXT NOT NULL, startdatum DATE NOT NULL, CONSTRAINT participation_pk PRIMARY KEY (kurs, startdatum, student), CONSTRAINT fk_participation_courseinstance FOREIGN KEY (kurs, startdatum) REFERENCES Kurstillfälle (kurs, startdatum) ON DELETE RESTRICT ON UPDATE CASCADE, CONSTRAINT fk_participation_student FOREIGN KEY (student) REFERENCES Student (personnummer) ON DELETE RESTRICT ON UPDATE CASCADE); +INSERT INTO Person VALUES ('111017-0001', 'Anders Ödman', 'Centralvägen 1', '19122', 'Sollentuna', '151576'); +INSERT INTO Person VALUES ('111017-0002', 'Bo Åkerman', 'Villagatan 2', '18491', 'Åkersberga', '151526'); +INSERT INTO Person VALUES ('111017-0003', 'Carl Nordin', 'Dalgatan 3', '15106', 'Södertälje', '151553'); +INSERT INTO Person VALUES ('111017-0004', 'Lena Svensson', 'Nygatan 4', '18754', 'Täby', '151556'); +INSERT INTO Person VALUES ('111017-0005', 'Sofia Wilsson', 'Björkgatan 5', '15136', 'Södertälje', '151585'); +INSERT INTO Person VALUES ('121017-0001', 'Bo Dahl', 'Ahlgatan 6', '16102', 'Bromma', '163578'); +INSERT INTO Person VALUES ('121017-0002', 'Ann Stål', 'Lindvägen 3', '16429', 'Kista', '373789'); +INSERT INTO Person VALUES ('121017-0003', 'Ebba Ryd', 'Ankvägen 4', '16107', 'Bromma', '325305'); +INSERT INTO Person VALUES ('121017-0004', 'Robert Ahl', 'Ekvägen 1', '16425', 'Kista', '123435'); +INSERT INTO Person VALUES ('121017-0005', 'Lars Holm', 'Skolgatan 3', '16966', 'Solna', '203045'); +INSERT INTO Person VALUES ('121017-0006', 'Siw Björk', 'Bokvägen 2', '16431', 'Kista', '452678'); +INSERT INTO Person VALUES ('121017-0007', 'Sigge Ehn', 'Bokvägen 24', '16429', 'Kista', '245578'); +INSERT INTO Person VALUES ('121017-0008', 'Kurt Grahn', 'Byvägen 112', '19735', 'Bro', '192292'); +INSERT INTO Person VALUES ('121017-0009', 'Eva Jung', 'Storgatan 5', '16966', 'Solna', '131187'); +INSERT INTO Person VALUES ('121017-0010', 'Lola Frid', 'Lillgatan 3', '18754', 'Täby', '723384'); +INSERT INTO Person VALUES ('121018-0040', 'Britt Maj', 'Karlvägen 44', '15106', 'Södertälje', '982355'); +INSERT INTO Person VALUES ('121117-0041', 'Eva Berglund', 'Hamngatan 15b', '15107', 'Södertälje', '774355'); +INSERT INTO Person VALUES ('131017-0050', 'Carl Nilsson', 'Strogatan 4', '16966', 'Solna', '332356'); +INSERT INTO Person VALUES ('131017-0051', 'Eva Jung', 'Skolgatan 12', '16966', 'Solna', '449867'); +INSERT INTO Person VALUES ('131017-0052', 'Lars Holm', 'Skolgatan 1', '16966', 'Solna', '665844'); +INSERT INTO Person VALUES ('131017-0053', 'Bo Dahl', 'Nygatan 63', '18753', 'Täby', '770691'); +INSERT INTO Person VALUES ('131017-0054', 'Sigge Grahn', 'Ekvägen 14', '16955', 'Solna', '112233'); +INSERT INTO Person VALUES ('131017-0055', 'Kurt Frid', 'Bokvägen 7', '17012', 'Södertälje', '445566'); +INSERT INTO Person VALUES ('131017-0056', 'Lola Berglund', 'Storgatan 22', '18760', 'Bromma', '778899'); +INSERT INTO Person VALUES ('131017-0057', 'Siw Ahl', 'Ahlgatan 3', '19044', 'Sollentuna', '223344'); +INSERT INTO Rum VALUES (1, 'Jupiter', 12); +INSERT INTO Rum VALUES (2, 'Orion', 24); +INSERT INTO Rum VALUES (3, 'Sirius', 16); +INSERT INTO Rum VALUES (4, 'Tellus', 32); +INSERT INTO Rum VALUES (5, 'Saturnus', 24); +INSERT INTO Student VALUES ('111017-0001', FALSE); +INSERT INTO Student VALUES ('121017-0001', FALSE); +INSERT INTO Student VALUES ('121017-0002', TRUE); +INSERT INTO Student VALUES ('121017-0003', FALSE); +INSERT INTO Student VALUES ('121017-0004', FALSE); +INSERT INTO Student VALUES 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lärare som har hållit kurstillfällen av samtliga kurser på högst tre veckor!","display_sequence":"D","result":{"columns":["personnummer","namn","telefon"],"values":[["111017-0005","Sofia Wilsson","151585"]]}}]},{"category_id":16,"display_number":16,"questions":[{"id":102,"description":"Ta fram antal studenter från Kista för varje kurstillfälle! Visa kurskod, startdatum och antal studenter! Även kurstillfällen utan studenter från Kista ska visas!","display_sequence":"A","result":{"columns":["kurs","startdatum","count"],"values":[["Java1","2008-03-06",0],["LDBD","2010-09-24",0],["LDBD","2008-09-02",1],["Java1","2008-05-06",2],["Log1","2009-09-17",1],["Java2","2010-04-11",2],["FDBD","2008-05-09",1],["DBM1","2008-04-02",1],["Java2","2008-04-16",3],["LDBD","2008-05-06",1],["Log1","2010-05-01",0],["Java1","2010-05-01",2],["DBM1","2010-09-22",1],["DBM1","2009-01-28",0],["Java2","2009-01-22",1],["Java1","2011-05-01",0],["Log1","2008-04-16",1],["Java1","2008-09-02",0],["DBM1","2010-02-15",1]]}},{"id":103,"description":"Ta fram antal gånger som varje student har deltagit i kursen \"Logisk databasdesign\"! Visa studentens personnummer, namn och ort samt antalet! Även studenter som inte har deltagit i kursen ska visas!","display_sequence":"B","result":{"columns":["personnummer","namn","ort","count"],"values":[["121017-0006","Siw Björk","Kista",1],["121017-0003","Ebba Ryd","Bromma",0],["121117-0041","Eva Berglund","Södertälje",1],["131017-0053","Bo Dahl","Täby",0],["121017-0004","Robert Ahl","Kista",0],["131017-0051","Eva Jung","Solna",0],["121017-0002","Ann Stål","Kista",0],["121017-0001","Bo Dahl","Bromma",1],["121017-0008","Kurt Grahn","Bro",2],["121018-0040","Britt Maj","Södertälje",1],["121017-0009","Eva Jung","Solna",0],["121017-0010","Lola Frid","Täby",0],["121017-0005","Lars Holm","Solna",0],["131017-0052","Lars Holm","Solna",0],["111017-0001","Anders Ödman","Sollentuna",0],["121017-0007","Sigge Ehn","Kista",1],["131017-0050","Carl Nilsson","Solna",1]]}},{"id":104,"description":"Ta fram antal gånger som varje student har deltagit i kursen \"Java, grundkurs\"! Visa studentens personnummer, namn och ort samt antalet! Även studenter som inte har deltagit i kursen ska visas!","display_sequence":"C","result":{"columns":["personnummer","namn","ort","count"],"values":[["121017-0006","Siw Björk","Kista",2],["121017-0003","Ebba Ryd","Bromma",1],["121117-0041","Eva Berglund","Södertälje",0],["131017-0053","Bo Dahl","Täby",0],["121017-0004","Robert Ahl","Kista",0],["131017-0051","Eva Jung","Solna",1],["121017-0002","Ann Stål","Kista",1],["121017-0001","Bo Dahl","Bromma",2],["121017-0008","Kurt Grahn","Bro",2],["121018-0040","Britt Maj","Södertälje",0],["121017-0009","Eva Jung","Solna",2],["121017-0010","Lola Frid","Täby",1],["121017-0005","Lars Holm","Solna",0],["131017-0052","Lars Holm","Solna",0],["111017-0001","Anders Ödman","Sollentuna",0],["121017-0007","Sigge Ehn","Kista",1],["131017-0050","Carl Nilsson","Solna",0]]}},{"id":105,"description":"Ta fram antal gånger som varje lärare har hållit kursen \"Java, grundkurs\"! Visa lärarens personnummer, namn, telefon och tjänsterum samt antalet! Även lärare som inte har hållit kursen ska visas!","display_sequence":"D","result":{"columns":["personnummer","namn","telefon","tjänsterum","count"],"values":[["131017-0050","Carl Nilsson","332356",558,0],["111017-0003","Carl Nordin","151553",603,2],["111017-0001","Anders Ödman","151576",634,0],["111017-0002","Bo Åkerman","151526",604,3],["111017-0005","Sofia Wilsson","151585",622,0],["111017-0004","Lena Svensson","151556",605,0]]}},{"id":106,"description":"Ta fram antal kurstillfällen som varje lärare har hållit med start under år 2010! Visa lärarens personnummer, namn, telefon och tjänsterum samt antalet! Även lärare som inte har hållit kurstillfällen under 2010 ska visas!","display_sequence":"E","result":{"columns":["personnummer","namn","telefon","tjänsterum","count"],"values":[["131017-0050","Carl Nilsson","332356",558,2],["111017-0003","Carl Nordin","151553",603,1],["111017-0001","Anders Ödman","151576",634,0],["111017-0002","Bo Åkerman","151526",604,1],["111017-0005","Sofia Wilsson","151585",622,0],["111017-0004","Lena Svensson","151556",605,2]]}},{"id":107,"description":"Ta fram antal kurstillfällen med start under år 2008 för varje student! Visa studentens personnummer, namn, telefon och ort samt antalet! 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Visa lärarens personnummer, namn, telefon och tjänsterum samt antalet! Även lärare som inte har hållit kursen ska visas!","display_sequence":"D","result":{"columns":["personnummer","namn","telefon","tjänsterum","antal"],"values":[["111017-0001","Anders Ödman","151576",634,0],["111017-0002","Bo Åkerman","151526",604,3],["111017-0003","Carl Nordin","151553",603,2],["111017-0004","Lena Svensson","151556",605,0],["111017-0005","Sofia Wilsson","151585",622,0],["131017-0050","Carl Nilsson","332356",558,0]]}},{"id":106,"description":"Ta fram antal kurstillfällen som varje lärare har hållit med start under år 2010! Visa lärarens personnummer, namn, telefon och tjänsterum samt antalet! Även lärare som inte har hållit kurstillfällen under 2010 ska visas!","display_sequence":"E","result":{"columns":["personnummer","namn","telefon","tjänsterum","antal"],"values":[["111017-0001","Anders Ödman","151576",634,0],["111017-0002","Bo Åkerman","151526",604,1],["111017-0003","Carl Nordin","151553",603,1],["111017-0004","Lena Svensson","151556",605,2],["111017-0005","Sofia Wilsson","151585",622,0],["131017-0050","Carl Nilsson","332356",558,2]]}},{"id":107,"description":"Ta fram antal kurstillfällen med start under år 2008 för varje student! Visa studentens personnummer, namn, telefon och ort samt antalet! Även studenter som inte har deltagit i kurstillfällen under 2008 ska visas!","display_sequence":"F","result":{"columns":["personnummer","namn","telefon","ort","antal"],"values":[["111017-0001","Anders Ödman","151576","Sollentuna",0],["121017-0001","Bo Dahl","163578","Bromma",4],["121017-0002","Ann Stål","373789","Kista",3],["121017-0003","Ebba Ryd","325305","Bromma",3],["121017-0004","Robert Ahl","123435","Kista",1],["121017-0005","Lars Holm","203045","Solna",2],["121017-0006","Siw Björk","452678","Kista",4],["121017-0007","Sigge Ehn","245578","Kista",2],["121017-0008","Kurt Grahn","192292","Bro",3],["121017-0009","Eva Jung","131187","Solna",2],["121017-0010","Lola Frid","723384","Täby",2],["121018-0040","Britt Maj","982355","Södertälje",0],["121117-0041","Eva Berglund","774355","Södertälje",0],["131017-0050","Carl Nilsson","332356","Solna",1],["131017-0051","Eva Jung","449867","Solna",1],["131017-0052","Lars Holm","665844","Solna",0],["131017-0053","Bo Dahl","770691","Täby",0]]}}]},{"category_id":17,"display_number":17,"questions":[{"id":108,"description":"Ta fram information om kurstillfällen som ingen student från Solna har deltagit i! Visa kurskod, kursnamn, startdatum, rumsnamn och lärarnamn!","display_sequence":"A","result":{"columns":["kurs","namn","startdatum","namn","namn"],"values":[["DBM1","Databasmetodik","2008-04-02T00:00:00.000Z","Sirius","Sofia Wilsson"],["Java1","Java, grundkurs","2008-05-06T00:00:00.000Z","Jupiter","Bo Åkerman"],["LDBD","Logisk databasdesign","2008-05-06T00:00:00.000Z","Sirius","Sofia Wilsson"],["FDBD","Fysisk databasdesign","2008-05-09T00:00:00.000Z","Jupiter","Lena Svensson"],["Log1","Logik","2009-09-17T00:00:00.000Z","Jupiter","Sofia Wilsson"],["DBM1","Databasmetodik","2010-02-15T00:00:00.000Z","Sirius","Lena Svensson"],["Java1","Java, grundkurs","2010-05-01T00:00:00.000Z","Saturnus","Carl Nordin"],["LDBD","Logisk databasdesign","2010-09-24T00:00:00.000Z","Saturnus","Lena Svensson"],["Java1","Java, grundkurs","2011-05-01T00:00:00.000Z","Saturnus","Bo Åkerman"]]}},{"id":109,"description":"Ta fram information om kurstillfällen som ingen student från Kista har deltagit i! Visa kurskod, kursnamn, startdatum, rumsnamn och lärarnamn!","display_sequence":"B","result":{"columns":["kurs","namn","startdatum","namn","namn"],"values":[["Java1","Java, grundkurs","2008-03-06T00:00:00.000Z","Tellus","Bo Åkerman"],["Java1","Java, grundkurs","2008-09-02T00:00:00.000Z","Tellus","Carl Nordin"],["DBM1","Databasmetodik","2009-01-28T00:00:00.000Z","Jupiter","Sofia Wilsson"],["Log1","Logik","2010-05-01T00:00:00.000Z","Jupiter","Bo Åkerman"],["LDBD","Logisk databasdesign","2010-09-24T00:00:00.000Z","Saturnus","Lena Svensson"],["Java1","Java, grundkurs","2011-05-01T00:00:00.000Z","Saturnus","Bo Åkerman"]]}},{"id":110,"description":"Ta fram information om kurstillfällen som ingen funktionshindrad student har deltagit i! Visa kurskod, kursnamn, startdatum, rumsnamn och lärarnamn!","display_sequence":"C","result":{"columns":["kurs","namn","startdatum","namn","namn"],"values":[["Log1","Logik","2008-04-16T00:00:00.000Z","Jupiter","Carl Nordin"],["LDBD","Logisk databasdesign","2008-05-06T00:00:00.000Z","Sirius","Sofia Wilsson"],["Java1","Java, grundkurs","2008-09-02T00:00:00.000Z","Tellus","Carl Nordin"],["DBM1","Databasmetodik","2009-01-28T00:00:00.000Z","Jupiter","Sofia Wilsson"],["Log1","Logik","2010-05-01T00:00:00.000Z","Jupiter","Bo Åkerman"],["Java1","Java, grundkurs","2011-05-01T00:00:00.000Z","Saturnus","Bo Åkerman"]]}}]}]} \ No newline at end of file diff --git a/scripts/generate-erd.ts b/scripts/generate-erd.ts index 8d53ef0..c4028bc 100644 --- a/scripts/generate-erd.ts +++ b/scripts/generate-erd.ts @@ -1,5 +1,6 @@ /** - * ERD generator: produces light/dark SVG ERD diagrams from a .sqlite3 file. + * ERD generator: produces light/dark SVG ERD diagrams from database files. + * Supports both SQLite (.sqlite3 binary) and PostgreSQL (.sql text via PGLite). * Uses the Edwinexd/sqlite-erd package for schema extraction, DOT generation, * and themed SVG coloring, with jsdom providing browser APIs in Node.js. * @@ -11,6 +12,8 @@ import { readFileSync, writeFileSync, existsSync, mkdirSync, readdirSync } from import { join } from "path"; import { JSDOM } from "jsdom"; import type { SqlJsStatic } from "sql.js"; +import type { PGlite } from "@electric-sql/pglite"; +import type { EngineType } from "../src/i18n/languages"; // ── CLI args ─────────────────────────────────────────────────── const args = process.argv.slice(2); @@ -29,24 +32,42 @@ if ((!dbPath || !outDir) && !generateAll) { process.exit(1); } -/** Discover all language directories that contain data.sqlite3 */ -function discoverLanguageDirs(): { db: string; out: string }[] { +interface Target { + db: string; + out: string; + engine: EngineType; +} + +/** Discover all language directories that contain data.sqlite3 or data.sql */ +function discoverLanguageDirs(): Target[] { const langRoot = join(__dirname, "..", "public", "languages"); if (!existsSync(langRoot)) return []; return readdirSync(langRoot, { withFileTypes: true }) .filter(d => d.isDirectory()) - .map(d => ({ - db: join(langRoot, d.name, "data.sqlite3"), - out: join(langRoot, d.name), - })) - .filter(({ db }) => existsSync(db)); + .flatMap((d): Target[] => { + const sqlitePath = join(langRoot, d.name, "data.sqlite3"); + const sqlPath = join(langRoot, d.name, "data.sql"); + if (existsSync(sqlitePath)) { + return [{ db: sqlitePath, out: join(langRoot, d.name), engine: "sqlite" }]; + } + if (existsSync(sqlPath)) { + return [{ db: sqlPath, out: join(langRoot, d.name), engine: "postgresql" }]; + } + return []; + }); } -// ── Generate ERD for a single database ──────────────────────── -async function generateErd( +type ErdDeps = { + executorToLayout: typeof import("sqlite-erd/src/utils").executorToLayout; + dotToSvg: typeof import("sqlite-erd/src/utils").dotToSvg; + colorErdSVG: typeof import("sqlite-erd/src/utils").colorErdSVG; +}; + +// ── Generate ERD for a SQLite database ───────────────────────── +async function generateErdSqlite( dbFilePath: string, outputDir: string, - deps: { SQL: SqlJsStatic; executorToLayout: typeof import("sqlite-erd/src/utils").executorToLayout; dotToSvg: typeof import("sqlite-erd/src/utils").dotToSvg; colorErdSVG: typeof import("sqlite-erd/src/utils").colorErdSVG }, + deps: ErdDeps & { SQL: SqlJsStatic }, ) { const { SQL, executorToLayout, dotToSvg, colorErdSVG } = deps; const dbData = readFileSync(dbFilePath); @@ -58,7 +79,7 @@ async function generateErd( return res[0]; }; - console.log(`Building layout from ${dbFilePath}...`); + console.log(`Building layout from ${dbFilePath} (sqlite)...`); const layout = executorToLayout(executor); const dot = layout.getDot(); @@ -79,6 +100,269 @@ async function generateErd( db.close(); } +// ── PostgreSQL PRAGMA translation layer ──────────────────────── +/** + * Pre-populates the PG executor cache with all data needed by executorToLayout. + * This is necessary because executorToLayout expects a synchronous executor, + * but PGlite is async. + */ +async function buildPgExecutorCache(pgDb: PGlite): Promise<(query: string) => { columns: string[]; values: unknown[][] }> { + const cache: Record = {}; + + function cacheResult(key: string, columns: string[], values: unknown[][]) { + cache[key] = { columns, values }; + } + + // 1. Get all table names (equivalent to sqlite_master query) + const tablesQuery = "SELECT name FROM sqlite_master WHERE type='table' AND name NOT LIKE 'sqlite_%'"; + const tablesRes = await pgDb.query<{ table_name: string }>( + "SELECT table_name FROM information_schema.tables WHERE table_schema = 'public' AND table_type = 'BASE TABLE' ORDER BY table_name" + ); + const tableNames = tablesRes.rows.map(r => r.table_name); + cacheResult(tablesQuery, ["name"], tableNames.map(n => [n])); + + for (const tableName of tableNames) { + const escapedName = `"${tableName.replace(/"/g, '""')}"`; + + // 2. PRAGMA table_info equivalent + const tableInfoKey = `PRAGMA table_info(${escapedName})`; + const colsRes = await pgDb.query<{ + column_name: string; + ordinal_position: number; + data_type: string; + is_nullable: string; + column_default: string | null; + }>( + `SELECT column_name, ordinal_position, UPPER(data_type) as data_type, is_nullable, column_default + FROM information_schema.columns + WHERE table_schema = 'public' AND table_name = $1 + ORDER BY ordinal_position`, + [tableName] + ); + + // Get primary key columns for this table + const pkRes = await pgDb.query<{ column_name: string; ordinal_position: number }>( + `SELECT kcu.column_name, kcu.ordinal_position + FROM information_schema.table_constraints tc + JOIN information_schema.key_column_usage kcu + ON tc.constraint_name = kcu.constraint_name AND tc.table_schema = kcu.table_schema + WHERE tc.table_schema = 'public' AND tc.table_name = $1 AND tc.constraint_type = 'PRIMARY KEY' + ORDER BY kcu.ordinal_position`, + [tableName] + ); + const pkColumns = new Set(pkRes.rows.map(r => r.column_name)); + + // table_info columns: cid, name, type, notnull, dflt_value, pk + cacheResult(tableInfoKey, + ["cid", "name", "type", "notnull", "dflt_value", "pk"], + colsRes.rows.map((r, i) => [ + i, // cid + r.column_name, // name + r.data_type, // type + r.is_nullable === "NO" ? 1 : 0, // notnull + r.column_default, // dflt_value + pkColumns.has(r.column_name) ? 1 : 0 // pk + ]) + ); + + // 3. PRAGMA foreign_key_list equivalent + const fkListKey = `PRAGMA foreign_key_list(${escapedName})`; + const fkRes = await pgDb.query<{ + constraint_name: string; + ref_table: string; + column_name: string; + ref_column: string; + update_rule: string; + delete_rule: string; + }>( + `SELECT + tc.constraint_name, + ccu.table_name AS ref_table, + kcu.column_name, + ccu.column_name AS ref_column, + rc.update_rule, + rc.delete_rule + FROM information_schema.table_constraints tc + JOIN information_schema.key_column_usage kcu + ON tc.constraint_name = kcu.constraint_name AND tc.table_schema = kcu.table_schema + JOIN information_schema.constraint_column_usage ccu + ON tc.constraint_name = ccu.constraint_name AND tc.table_schema = ccu.table_schema + JOIN information_schema.referential_constraints rc + ON tc.constraint_name = rc.constraint_name AND tc.table_schema = rc.constraint_schema + WHERE tc.table_schema = 'public' AND tc.table_name = $1 AND tc.constraint_type = 'FOREIGN KEY' + ORDER BY tc.constraint_name, kcu.ordinal_position`, + [tableName] + ); + + // Group by constraint name to assign sequential IDs + const fkGroups: Record = {}; + for (const row of fkRes.rows) { + if (!fkGroups[row.constraint_name]) fkGroups[row.constraint_name] = []; + fkGroups[row.constraint_name].push(row); + } + + const fkValues: unknown[][] = []; + let fkId = 0; + for (const [, rows] of Object.entries(fkGroups)) { + for (let seq = 0; seq < rows.length; seq++) { + const r = rows[seq]; + fkValues.push([ + fkId, // id + seq, // seq + r.ref_table, // table + r.column_name, // from + r.ref_column, // to + mapPgAction(r.update_rule), // on_update + mapPgAction(r.delete_rule), // on_delete + "NONE", // match + ]); + } + fkId++; + } + cacheResult(fkListKey, + ["id", "seq", "table", "from", "to", "on_update", "on_delete", "match"], + fkValues + ); + + // 4. PRAGMA index_list equivalent + const indexListKey = `PRAGMA index_list(${escapedName})`; + const idxRes = await pgDb.query<{ + indexname: string; + indexdef: string; + }>( + "SELECT indexname, indexdef FROM pg_indexes WHERE schemaname = 'public' AND tablename = $1", + [tableName] + ); + + // Also check which indexes are unique and which are pk + const idxDetailRes = await pgDb.query<{ + index_name: string; + is_unique: boolean; + is_primary: boolean; + }>( + `SELECT + i.relname AS index_name, + ix.indisunique AS is_unique, + ix.indisprimary AS is_primary + FROM pg_index ix + JOIN pg_class t ON t.oid = ix.indrelid + JOIN pg_class i ON i.oid = ix.indexrelid + JOIN pg_namespace n ON n.oid = t.relnamespace + WHERE n.nspname = 'public' AND t.relname = $1`, + [tableName] + ); + + const idxDetails: Record = {}; + for (const r of idxDetailRes.rows) { + idxDetails[r.index_name] = { isUnique: r.is_unique, isPrimary: r.is_primary }; + } + + const indexListValues: unknown[][] = []; + for (let seq = 0; seq < idxRes.rows.length; seq++) { + const r = idxRes.rows[seq]; + const detail = idxDetails[r.indexname] || { isUnique: false, isPrimary: false }; + indexListValues.push([ + seq, // seq + r.indexname, // name + detail.isUnique ? 1 : 0, // unique + detail.isPrimary ? "pk" : "c", // origin + 0, // partial + ]); + } + cacheResult(indexListKey, + ["seq", "name", "unique", "origin", "partial"], + indexListValues + ); + + // 5. PRAGMA index_info for each index + for (const idxRow of idxRes.rows) { + const indexName = idxRow.indexname; + const escapedIdx = `"${indexName.replace(/"/g, '""')}"`; + const indexInfoKey = `PRAGMA index_info(${escapedIdx})`; + + const indexColsRes = await pgDb.query<{ + attnum: number; + attname: string; + }>( + `SELECT a.attnum, a.attname + FROM pg_index ix + JOIN pg_class i ON i.oid = ix.indexrelid + JOIN pg_attribute a ON a.attrelid = ix.indrelid AND a.attnum = ANY(ix.indkey) + JOIN pg_namespace n ON n.oid = i.relnamespace + WHERE n.nspname = 'public' AND i.relname = $1 + ORDER BY a.attnum`, + [indexName] + ); + + cacheResult(indexInfoKey, + ["seqno", "cid", "name"], + indexColsRes.rows.map((r, seq) => [ + seq, // seqno + r.attnum - 1, // cid (0-based) + r.attname, // name + ]) + ); + } + } + + return (query: string) => { + const cached = cache[query]; + if (cached) return cached; + // Return empty result for unknown queries + console.warn(`PG executor: uncached query, returning empty: ${query}`); + return { columns: [] as string[], values: [] as unknown[][] }; + }; +} + +/** Map PostgreSQL referential action names to SQLite-style action names */ +function mapPgAction(action: string): string { + switch (action) { + case "CASCADE": return "CASCADE"; + case "SET NULL": return "SET NULL"; + case "SET DEFAULT": return "SET DEFAULT"; + case "RESTRICT": return "RESTRICT"; + case "NO ACTION": return "NO ACTION"; + default: return action; + } +} + +// ── Generate ERD for a PostgreSQL database ───────────────────── +async function generateErdPostgresql( + sqlFilePath: string, + outputDir: string, + deps: ErdDeps, +) { + const { executorToLayout, dotToSvg, colorErdSVG } = deps; + + const { PGlite } = await import("@electric-sql/pglite"); + const pgDb = new PGlite(); + + const sqlContent = readFileSync(sqlFilePath, "utf-8"); + console.log(`Loading SQL into PGLite from ${sqlFilePath}...`); + await pgDb.exec(sqlContent); + + console.log(`Building layout from ${sqlFilePath} (postgresql)...`); + const executor = await buildPgExecutorCache(pgDb); + const layout = executorToLayout(executor); + const dot = layout.getDot(); + + const rawSvg = await dotToSvg(dot); + + if (!existsSync(outputDir)) { + mkdirSync(outputDir, { recursive: true }); + } + + const lightSvg = colorErdSVG(rawSvg, false); + writeFileSync(join(outputDir, "db_layout_light.svg"), lightSvg); + console.log("Wrote db_layout_light.svg"); + + const darkSvg = colorErdSVG(rawSvg, true); + writeFileSync(join(outputDir, "db_layout_dark.svg"), darkSvg); + console.log("Wrote db_layout_dark.svg"); + + await pgDb.close(); +} + // ── Main ─────────────────────────────────────────────────────── async function main() { // Polyfill browser globals via jsdom (needed by sqlite-erd's colorErdSVG) @@ -105,16 +389,25 @@ async function main() { g.SVGSVGElement = makeSvgCheck("svg"); const { executorToLayout, dotToSvg, colorErdSVG } = await import("sqlite-erd/src/utils"); - const initSqlJs = (await import("sql.js")).default; - const SQL = await initSqlJs(); - const deps = { SQL, executorToLayout, dotToSvg, colorErdSVG }; + const erdDeps = { executorToLayout, dotToSvg, colorErdSVG }; - const targets = generateAll + const targets: Target[] = generateAll ? discoverLanguageDirs() - : [{ db: dbPath!, out: outDir! }]; + : [{ db: dbPath!, out: outDir!, engine: (dbPath!.endsWith(".sql") ? "postgresql" : "sqlite") as EngineType }]; + + // Only init sql.js if we have sqlite targets + let SQL: SqlJsStatic | null = null; + if (targets.some(t => t.engine === "sqlite")) { + const initSqlJs = (await import("sql.js")).default; + SQL = await initSqlJs(); + } - for (const { db, out } of targets) { - await generateErd(db, out, deps); + for (const target of targets) { + if (target.engine === "postgresql") { + await generateErdPostgresql(target.db, target.out, erdDeps); + } else { + await generateErdSqlite(target.db, target.out, { ...erdDeps, SQL: SQL! }); + } } console.log("Done!"); diff --git a/scripts/generate-language.ts b/scripts/generate-language.ts index 9c216d1..c0a5d1d 100644 --- a/scripts/generate-language.ts +++ b/scripts/generate-language.ts @@ -1,5 +1,8 @@ /** - * Language generator: produces per-language questionpool.json and data.sqlite3. + * Language generator: produces per-language questionpool.json and database data files. + * + * For SQLite-engine languages: outputs data.sqlite3 (binary). + * For PostgreSQL-engine languages: outputs data.sql (text dump). * * Usage: npx tsx scripts/generate-language.ts --lang [--password | --plain] * or: npx tsx scripts/generate-language.ts --all [--password | --plain] @@ -11,6 +14,7 @@ import { join } from "path"; import type { SqlJsStatic } from "sql.js"; import type { OracleData } from "../data/oracle-types"; import type { LanguageDefinition, CanonicalTable } from "../languages/types"; +import { normalizePgValue } from "../src/database/pgNormalize"; // ── CLI argument parsing ─────────────────────────────────────── const args = process.argv.slice(2); @@ -88,12 +92,11 @@ function getPersonAddress(lang: LanguageDefinition, personIndex: number): string return `${lang.streets[person.streetIndex]} ${person.streetSuffix}`; } -// ── SQL generation ───────────────────────────────────────────── +// ── SQL generation (SQLite) ───────────────────────────────────── function generateCreateTableSQL(lang: LanguageDefinition): string { const t = lang.tables; const c = lang.columns; - // We need to reproduce the exact same schema structure with translated names const statements: string[] = []; // Person @@ -122,6 +125,41 @@ function generateCreateTableSQL(lang: LanguageDefinition): string { return statements.join("\n"); } +// ── SQL generation (PostgreSQL) ───────────────────────────────── +function generateCreateTablePgSQL(lang: LanguageDefinition): string { + const t = lang.tables; + const c = lang.columns; + + // No double-quoting: PG lowercases unquoted identifiers, which matches how + // oracle queries reference tables/columns (also unquoted). + const statements: string[] = []; + + // Person + statements.push(`CREATE TABLE ${t.Person} (${c.Person.id} TEXT NOT NULL, ${c.Person.name} TEXT NOT NULL, ${c.Person.address} TEXT NOT NULL, ${c.Person.postalCode} TEXT NOT NULL, ${c.Person.city} TEXT NOT NULL, ${c.Person.phone} TEXT NOT NULL, PRIMARY KEY (${c.Person.id}));`); + + // Room + statements.push(`CREATE TABLE ${t.Room} (${c.Room.id} INTEGER NOT NULL, ${c.Room.name} TEXT NOT NULL, ${c.Room.capacity} INTEGER NOT NULL, PRIMARY KEY (${c.Room.id}));`); + statements.push(`CREATE UNIQUE INDEX rum_namn ON ${t.Room} (${c.Room.name});`); + + // Student — hasDisability uses BOOLEAN + statements.push(`CREATE TABLE ${t.Student} (${c.Student.id} TEXT NOT NULL, ${c.Student.hasDisability} BOOLEAN NOT NULL, CONSTRAINT STUDENT_PK PRIMARY KEY (${c.Student.id}), CONSTRAINT Student_Person_FK FOREIGN KEY (${c.Student.id}) REFERENCES ${t.Person} (${c.Person.id}) ON DELETE RESTRICT ON UPDATE CASCADE);`); + + // Teacher + statements.push(`CREATE TABLE ${t.Teacher} (${c.Teacher.id} TEXT NOT NULL, ${c.Teacher.officeRoom} INTEGER NOT NULL, CONSTRAINT teacher_pk PRIMARY KEY (${c.Teacher.id}), CONSTRAINT fk_teacher_person FOREIGN KEY (${c.Teacher.id}) REFERENCES ${t.Person} (${c.Person.id}) ON DELETE RESTRICT ON UPDATE CASCADE);`); + + // Course + statements.push(`CREATE TABLE ${t.Course} (${c.Course.code} TEXT NOT NULL, ${c.Course.name} TEXT NOT NULL, ${c.Course.duration} INTEGER NOT NULL, ${c.Course.price} INTEGER NOT NULL, ${c.Course.description} TEXT NOT NULL, PRIMARY KEY (${c.Course.code}));`); + statements.push(`CREATE UNIQUE INDEX kurs_ben ON ${t.Course} (${c.Course.name});`); + + // CourseInstance — startDate uses DATE + statements.push(`CREATE TABLE ${t.CourseInstance} (${c.CourseInstance.course} TEXT NOT NULL, ${c.CourseInstance.startDate} DATE NOT NULL, ${c.CourseInstance.teacher} TEXT NOT NULL, ${c.CourseInstance.room} INTEGER NOT NULL, CONSTRAINT courseinstance_pk PRIMARY KEY (${c.CourseInstance.course}, ${c.CourseInstance.startDate}), CONSTRAINT fk_courseinstance_course FOREIGN KEY (${c.CourseInstance.course}) REFERENCES ${t.Course} (${c.Course.code}) ON DELETE RESTRICT ON UPDATE CASCADE, CONSTRAINT fk_courseinstance_teacher FOREIGN KEY (${c.CourseInstance.teacher}) REFERENCES ${t.Teacher} (${c.Teacher.id}) ON DELETE RESTRICT ON UPDATE CASCADE, CONSTRAINT fk_courseinstance_room FOREIGN KEY (${c.CourseInstance.room}) REFERENCES ${t.Room} (${c.Room.id}) ON DELETE RESTRICT ON UPDATE CASCADE);`); + + // Participation — startDate uses DATE + statements.push(`CREATE TABLE ${t.Participation} (${c.Participation.student} TEXT NOT NULL, ${c.Participation.course} TEXT NOT NULL, ${c.Participation.startDate} DATE NOT NULL, CONSTRAINT participation_pk PRIMARY KEY (${c.Participation.course}, ${c.Participation.startDate}, ${c.Participation.student}), CONSTRAINT fk_participation_courseinstance FOREIGN KEY (${c.Participation.course}, ${c.Participation.startDate}) REFERENCES ${t.CourseInstance} (${c.CourseInstance.course}, ${c.CourseInstance.startDate}) ON DELETE RESTRICT ON UPDATE CASCADE, CONSTRAINT fk_participation_student FOREIGN KEY (${c.Participation.student}) REFERENCES ${t.Student} (${c.Student.id}) ON DELETE RESTRICT ON UPDATE CASCADE);`); + + return statements.join("\n"); +} + function generateInsertSQL(lang: LanguageDefinition): string { const t = lang.tables; const esc = (s: string) => s.replace(/'/g, "''"); @@ -181,6 +219,65 @@ function generateInsertSQL(lang: LanguageDefinition): string { return statements.join("\n"); } +function generateInsertPgSQL(lang: LanguageDefinition): string { + const t = lang.tables; + const esc = (s: string) => s.replace(/'/g, "''"); + const statements: string[] = []; + + // Persons + for (let i = 0; i < oracle.persons.length; i++) { + const p = oracle.persons[i]; + const name = getPersonName(lang, i); + const address = getPersonAddress(lang, i); + statements.push(`INSERT INTO ${t.Person} VALUES ('${esc(lang.personIds[i])}', '${esc(name)}', '${esc(address)}', '${esc(lang.postalCodes[i])}', '${esc(lang.cities[p.cityIndex])}', '${esc(lang.phones[i])}');`); + } + + // Rooms + for (let i = 0; i < oracle.rooms.length; i++) { + const r = oracle.rooms[i]; + statements.push(`INSERT INTO ${t.Room} VALUES (${r.id}, '${esc(lang.roomNames[i])}', ${r.capacity});`); + } + + // Students — BOOLEAN values + for (let i = 0; i < oracle.persons.length; i++) { + const p = oracle.persons[i]; + if (p.isStudent) { + statements.push(`INSERT INTO ${t.Student} VALUES ('${esc(lang.personIds[i])}', ${p.disability ? "TRUE" : "FALSE"});`); + } + } + + // Teachers + for (let i = 0; i < oracle.persons.length; i++) { + const p = oracle.persons[i]; + if (p.isTeacher) { + statements.push(`INSERT INTO ${t.Teacher} VALUES ('${esc(lang.personIds[i])}', ${p.officeRoom});`); + } + } + + // Courses + for (let i = 0; i < oracle.courses.length; i++) { + const cr = oracle.courses[i]; + const key = cr.key as keyof typeof lang.courseCodes; + statements.push(`INSERT INTO ${t.Course} VALUES ('${esc(lang.courseCodes[key])}', '${esc(lang.courseNames[key])}', ${cr.duration}, ${cr.price}, '${esc(lang.courseDescriptions[key])}');`); + } + + // Course Instances — DATE values + for (const ci of oracle.courseInstances) { + const courseKey = oracle.courses[ci.courseIndex].key as keyof typeof lang.courseCodes; + const teacherId = lang.personIds[ci.teacherPersonIndex]; + statements.push(`INSERT INTO ${t.CourseInstance} VALUES ('${esc(lang.courseCodes[courseKey])}', '${esc(ci.startDate)}', '${esc(teacherId)}', ${oracle.rooms[ci.roomIndex].id});`); + } + + // Participations — DATE values + for (const p of oracle.participations) { + const courseKey = oracle.courses[p.courseIndex].key as keyof typeof lang.courseCodes; + const studentId = lang.personIds[p.studentPersonIndex]; + statements.push(`INSERT INTO ${t.Participation} VALUES ('${esc(studentId)}', '${esc(lang.courseCodes[courseKey])}', '${esc(p.startDate)}');`); + } + + return statements.join("\n"); +} + // ── Query template resolution ────────────────────────────────── function resolveQuery(template: string, lang: LanguageDefinition): string { return template.replace(/\{\{(\w+):([^}]+)\}\}/g, (_, type: string, ref: string) => { @@ -219,20 +316,18 @@ function resolveQuery(template: string, lang: LanguageDefinition): string { }); } -// ── Generate a single language ──────────────────────────────── +// ── Generate: SQLite ──────────────────────────────────────────── type ResultData = { columns: string[]; values: (string | number | null)[][] }; -async function generateForLanguage(code: string, SQL: SqlJsStatic): Promise { - const lang = await loadLanguage(code); - console.log(`Generating language data for: ${lang.displayName} (${lang.code})`); +async function generateSqliteLanguage(lang: LanguageDefinition, SQL: SqlJsStatic): Promise { + console.log(`Generating SQLite data for: ${lang.displayName} (${lang.code})`); const db = new SQL.Database(); - // Create schema and insert data const createSQL = generateCreateTableSQL(lang); const insertSQL = generateInsertSQL(lang); - db.run("PRAGMA foreign_keys = OFF;"); // OFF during bulk insert for performance + db.run("PRAGMA foreign_keys = OFF;"); for (const stmt of createSQL.split(";\n").filter(s => s.trim())) { db.run(stmt + ";"); } @@ -241,31 +336,14 @@ async function generateForLanguage(code: string, SQL: SqlJsStatic): Promise new Date(date).getFullYear()); db.create_function("MONTH", (date: string) => new Date(date).getMonth() + 1); db.create_function("DAY", (date: string) => new Date(date).getDate()); - // Build question pool by running reference queries - const categoryMap = new Map; - }>(); - - let errorCount = 0; - function runQuery(queryTemplate: string): ResultData { const resolvedQuery = resolveQuery(queryTemplate, lang); const res = db.exec(resolvedQuery); if (res.length > 0) { - // Replace expression column names (e.g. "COUNT(student)") with the language's aggregate label const columns = res[0].columns.map(col => /[()]/.test(col) ? lang.aggregateLabel : col ); @@ -274,9 +352,90 @@ async function generateForLanguage(code: string, SQL: SqlJsStatic): Promise { + console.log(`Generating PostgreSQL data for: ${lang.displayName} (${outputCode})`); + + const { PGlite } = await import("@electric-sql/pglite"); + const db = new PGlite(); + + const createSQL = generateCreateTablePgSQL(lang); + const insertSQL = generateInsertPgSQL(lang); + + const fullSQL = createSQL + "\n" + insertSQL; + await db.exec(fullSQL); + + async function runQueryAsync(queryTemplate: string): Promise { + const resolvedQuery = resolveQuery(queryTemplate, lang); + // rowMode "array" preserves duplicate column names; normalization is shared with + // the live engine (src/database/pgNormalize) so the oracle and student results + // are produced identically. + const res = await db.query(resolvedQuery, [], { rowMode: "array" }); + if (res.rows.length > 0 || res.fields.length > 0) { + const columns = res.fields.map(f => + /[()]/.test(f.name) ? lang.aggregateLabel : f.name + ); + const values = (res.rows as unknown[][]).map(row => + row.map((val, i) => normalizePgValue(val, res.fields[i].dataTypeID) as string | number | null) + ); + return { columns, values }; + } + return { columns: [], values: [] }; + } + + const { categories, errorCount } = await buildQuestionPoolAsync(lang, runQueryAsync); + + const outputDir = join(__dirname, "..", "public", "languages", outputCode); + if (!existsSync(outputDir)) mkdirSync(outputDir, { recursive: true }); + + writeQuestionPool(outputDir, lang, categories, errorCount, "postgresql"); + + // SQL dump file + writeFileSync(join(outputDir, "data.sql"), fullSQL, "utf-8"); + console.log(`Wrote data.sql (${fullSQL.length} bytes)`); + + await db.close(); + return errorCount === 0; +} + +// ── Shared question pool building ────────────────────────────── +interface CategoryEntry { + category_id: number; + display_number: number; + questions: Array<{ + id: number; + description: string; + display_sequence: string; + result: ResultData; + alternative_results?: ResultData[]; + }>; +} + +function buildQuestionPool( + lang: LanguageDefinition, + runQuery: (template: string) => ResultData, +): { categories: CategoryEntry[]; errorCount: number } { + const categoryMap = new Map(); + let errorCount = 0; + for (const q of oracle.questions) { const description = lang.questionDescriptions[q.id]; - if (!description) { console.error(`Missing question description for Q${q.id} in language ${lang.code}`); errorCount++; @@ -293,7 +452,6 @@ async function generateForLanguage(code: string, SQL: SqlJsStatic): Promise 0) { alternative_results = []; @@ -302,13 +460,10 @@ async function generateForLanguage(code: string, SQL: SqlJsStatic): Promise 0) { - console.error(`\n${errorCount} error(s) occurred. Generated data may be incomplete.`); + const categories = Array.from(categoryMap.values()).sort((a, b) => a.category_id - b.category_id); + for (const cat of categories) { + cat.questions.sort((a, b) => a.display_sequence.localeCompare(b.display_sequence)); + } + + return { categories, errorCount }; +} + +async function buildQuestionPoolAsync( + lang: LanguageDefinition, + runQuery: (template: string) => Promise, + isPg = true, +): Promise<{ categories: CategoryEntry[]; errorCount: number }> { + const categoryMap = new Map(); + let errorCount = 0; + + for (const q of oracle.questions) { + const description = lang.questionDescriptions[q.id]; + if (!description) { + console.error(`Missing question description for Q${q.id} in language ${lang.code}`); + errorCount++; + continue; + } + + const queryTemplate = (isPg && q.pgQuery) ? q.pgQuery : q.query; + let result: ResultData; + try { + result = await runQuery(queryTemplate); + } catch (e) { + console.error(`Error running query for Q${q.id}: ${(e as Error).message}`); + console.error(` Resolved query: ${resolveQuery(queryTemplate, lang)}`); + errorCount++; + continue; + } + + const altQueries = (isPg && q.pgAlternativeQueries) ? q.pgAlternativeQueries : q.alternativeQueries; + let alternative_results: ResultData[] | undefined; + if (altQueries && altQueries.length > 0) { + alternative_results = []; + for (let i = 0; i < altQueries.length; i++) { + try { + alternative_results.push(await runQuery(altQueries[i])); + } catch (e) { + console.error(`Error running alternative query ${i + 1} for Q${q.id}: ${(e as Error).message}`); + errorCount++; + } + } + if (alternative_results.length === 0) alternative_results = undefined; + } + + if (!categoryMap.has(q.categoryId)) { + categoryMap.set(q.categoryId, { + category_id: q.categoryId, + display_number: q.displayNumber, + questions: [], + }); + } + + categoryMap.get(q.categoryId)!.questions.push({ + id: q.id, + description, + display_sequence: q.displaySequence, + result, + ...(alternative_results ? { alternative_results } : {}), + }); } - // Sort categories and questions - const categories = Array.from(categoryMap.values()) - .sort((a, b) => a.category_id - b.category_id); + const categories = Array.from(categoryMap.values()).sort((a, b) => a.category_id - b.category_id); for (const cat of categories) { cat.questions.sort((a, b) => a.display_sequence.localeCompare(b.display_sequence)); } - // Write output - const outputDir = join(__dirname, "..", "public", "languages", code); - if (!existsSync(outputDir)) { - mkdirSync(outputDir, { recursive: true }); - } + return { categories, errorCount }; +} - // Question pool JSON +function writeQuestionPool( + outputDir: string, + lang: LanguageDefinition, + categories: CategoryEntry[], + errorCount: number, + engine: "sqlite" | "postgresql" = "sqlite", +): void { + const totalQuestions = categories.reduce((sum, c) => sum + c.questions.length, 0); const questionPool = { language: lang.code, + engine, defaultQuery: `SELECT * FROM ${lang.tables.Student};`, questions: categories, }; @@ -356,16 +577,7 @@ async function generateForLanguage(code: string, SQL: SqlJsStatic): Promise 0 ? `, ${errorCount} errors` : ""})`); } // ── Main ─────────────────────────────────────────────────────── @@ -377,7 +589,16 @@ async function main() { let allOk = true; for (const code of codes) { - const ok = await generateForLanguage(code, SQL); + const lang = await loadLanguage(code); + // Skip engine-variant packs (e.g. sv-pg) — we generate those automatically + if (lang.engine === "postgresql") continue; + + // Generate SQLite data + let ok = await generateSqliteLanguage(lang, SQL); + if (!ok) allOk = false; + + // Generate PostgreSQL data (into {code}-pg/ directory) + ok = await generatePgLanguage(lang, `${code}-pg`); if (!ok) allOk = false; } diff --git a/scripts/generate-licenses.ts b/scripts/generate-licenses.ts new file mode 100644 index 0000000..c6a77bb --- /dev/null +++ b/scripts/generate-licenses.ts @@ -0,0 +1,76 @@ +/** + * Generates a JSON file with license information for all production dependencies. + * Output: public/licenses.json + */ + +import { readFileSync, writeFileSync, existsSync } from "fs"; +import { join, dirname } from "path"; + +const ROOT = join(dirname(new URL(import.meta.url).pathname), ".."); +const NODE_MODULES = join(ROOT, "node_modules"); + +interface LicenseEntry { + name: string; + version: string; + license: string; + repository?: string; + author?: string; +} + +// Read the root package.json to get production dependencies +const rootPkg = JSON.parse(readFileSync(join(ROOT, "package.json"), "utf-8")); +const prodDeps = Object.keys(rootPkg.dependencies || {}); + +function resolvePackage(name: string): LicenseEntry | null { + const pkgDir = join(NODE_MODULES, name); + const pkgJsonPath = join(pkgDir, "package.json"); + if (!existsSync(pkgJsonPath)) return null; + + const pkg = JSON.parse(readFileSync(pkgJsonPath, "utf-8")); + const license = typeof pkg.license === "string" + ? pkg.license + : typeof pkg.license === "object" + ? pkg.license.type + : Array.isArray(pkg.licenses) + ? pkg.licenses.map((l: { type: string }) => l.type).join(", ") + : "Unknown"; + + const repo = typeof pkg.repository === "string" + ? pkg.repository + : typeof pkg.repository === "object" + ? pkg.repository.url + : undefined; + + const cleanRepo = repo + ?.replace(/^git\+/, "") + ?.replace(/^git:\/\//, "https://") + ?.replace(/\.git$/, "") + ?.replace(/^ssh:\/\/git@github\.com/, "https://github.com"); + + const author = typeof pkg.author === "string" + ? pkg.author + : typeof pkg.author === "object" + ? pkg.author.name + : undefined; + + return { + name: pkg.name, + version: pkg.version, + license, + repository: cleanRepo, + author, + }; +} + +const entries: LicenseEntry[] = []; + +for (const dep of prodDeps) { + const entry = resolvePackage(dep); + if (entry) entries.push(entry); +} + +// Sort alphabetically +entries.sort((a, b) => a.name.localeCompare(b.name)); + +writeFileSync(join(ROOT, "public", "licenses.json"), JSON.stringify(entries, null, 2)); +console.log(`Generated licenses.json with ${entries.length} dependencies`); diff --git a/src/App.css b/src/App.css index 2b02d64..f69272f 100644 --- a/src/App.css +++ b/src/App.css @@ -45,3 +45,23 @@ body { .dark .diff-added-line { background-color: rgba(34, 197, 94, 0.15); } + +/* RA Preview styling — light mode */ +.ra-prev-op { color: #a78bfa; font-weight: bold; } +.ra-prev-assign { color: #a78bfa; font-weight: bold; } +.ra-prev-logic { color: #1d4ed8; font-weight: bold; } +.ra-prev-str { color: #047857; } +.ra-prev-num { color: #b45309; } +.ra-prev-comment { color: #6b7280; font-style: italic; } +.ra-prev-sub { font-size: 0.9em; color: #4c1d95; } +.ra-prev-paren { color: #9ca3af; } + +/* RA Preview styling — dark mode */ +.dark .ra-prev-op { color: #a78bfa; } +.dark .ra-prev-assign { color: #a78bfa; } +.dark .ra-prev-logic { color: #60a5fa; } +.dark .ra-prev-str { color: #34d399; } +.dark .ra-prev-num { color: #fbbf24; } +.dark .ra-prev-comment { color: #9ca3af; } +.dark .ra-prev-sub { color: #c4b5fd; } +.dark .ra-prev-paren { color: #6b7280; } diff --git a/src/App.test.tsx b/src/App.test.tsx deleted file mode 100644 index 9382b9a..0000000 --- a/src/App.test.tsx +++ /dev/null @@ -1,8 +0,0 @@ -import { render, screen } from "@testing-library/react"; -import App from "./App"; - -test("renders learn react link", () => { - render(); - const linkElement = screen.getByText(/learn react/i); - expect(linkElement).toBeInTheDocument(); -}); diff --git a/src/App.tsx b/src/App.tsx index eb2170d..6b59cc0 100644 --- a/src/App.tsx +++ b/src/App.tsx @@ -15,21 +15,20 @@ GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . */ -import { useCallback, useEffect, useRef, useState } from "react"; -import Editor from "react-simple-code-editor"; +import { useCallback, useEffect, useMemo, useRef, useState } from "react"; import "./App.css"; import ResultTable from "./ResultTable"; import ExportRenderer from "./ExportRenderer"; import QuestionSelector, { Question } from "./QuestionSelector"; -// @ts-expect-error - No types available -import { highlight, languages } from "prismjs/components/prism-core"; -import "prismjs/components/prism-sql"; -import "prismjs/themes/prism.css"; import { format } from "sql-formatter"; import initSqlJs from "sql.js"; import ViewsTable, { View } from "./ViewsTable"; +import { raToSQL, RAError } from "./ra-engine/relationalAlgebra"; +import RAReference from "./ra-engine/RAReference"; +import RAPreview from "./ra-engine/RAPreview"; +import SqlEditor, { type SqlEditorHandle } from "./SqlEditor"; import { Info, Settings, XCircle, CheckCircle2, Eye, EyeOff } from "lucide-react"; import ChangelogDialog from "./ChangelogDialog"; @@ -44,6 +43,7 @@ import sha256 from "crypto-js/sha256"; import { format as formatFns } from "date-fns"; import { toPng } from "html-to-image"; import PrivacyNoticeToggle from "./PrivacyNoticeToggle"; +import LicenseDialog from "./LicenseDialog"; import ThemeToggle from "./ThemeToggle"; import useTheme from "./useTheme"; import { isCorrectResult, Result } from "./utils"; @@ -53,12 +53,42 @@ import ImportDialog, { ImportDialogHandle } from "./ImportDialog"; import { ParsedSaveData, parseImportFile, getLocalData, detectConflicts } from "./mergeUtils"; import { useLanguage, langKey, getUrlParam, setUrlParam } from "./i18n/context"; import LanguageSelector from "./LanguageSelector"; +import EngineSelector from "./EngineSelector"; import { getQuestion } from "./QuestionSelector"; +import type { DatabaseEngine } from "./database/types"; +import { SqliteEngine } from "./database/sqliteEngine"; +import { PgliteEngine } from "./database/pgliteEngine"; +import { useEditorSettings } from "./useEditorSettings"; +import EditorSettingsDialog from "./EditorSettingsDialog"; + +/** Storage key namespaced by editor mode */ +function modeKey(base: string, mode: "sql" | "ra"): string { + return mode === "ra" ? `ra-${base}` : base; +} + +/** Build a localStorage key namespaced by language and engine */ +function engineKey(lang: string, engine: string, key: string): string { + return langKey(lang, `${engine}:${key}`); +} + +/** Get a JSON-parsed list from localStorage, with language+engine+mode namespacing */ +function getStoredList(lang: string, engine: string, key: string): number[] { + const raw = localStorage.getItem(engineKey(lang, engine, key)); + return raw ? JSON.parse(raw) : []; +} + +/** Set a JSON list in localStorage, with language+engine namespacing */ +function setStoredList(lang: string, engine: string, key: string, value: number[]): void { + localStorage.setItem(engineKey(lang, engine, key), JSON.stringify(value)); +} + function App() { - const { lang, t, questions, dbArrayBuffer, defaultQuery } = useLanguage(); + const { lang, t, questions, dbData, defaultQuery, engine, setEngine } = useLanguage(); + const { settings: editorSettings, setSettings: setEditorSettings } = useEditorSettings(); const [question, setQuestion] = useState(); - const [database, setDatabase] = useState(); + const [database, setDatabase] = useState(); + const [dbSchema, setDbSchema] = useState>({}); const [error, setError] = useState(null); // flag for correct result query being present but current (which might not be evaluated) is not the same const [correctQueryMismatch, setCorrectQueryMismatch] = useState(false); @@ -78,21 +108,29 @@ function App() { const [exportQuery, setExportQuery] = useState(); const [exportingStatus, setExportingStatus] = useState(0); const [loadedQuestionCorrect, setLoadedQuestionCorrect] = useState(false); + const [editorMode, setEditorMode] = useState<"sql" | "ra">(() => { + const param = getUrlParam("mode"); + return param === "ra" ? "ra" : "sql"; + }); + const exportRendererRef = useRef(null); - const editorRef = useRef(null); + const sqlEditorRef = useRef(null); const exportModalRef = useRef(null); const importDialogRef = useRef(null); const [pendingImportData, setPendingImportData] = useState(null); // QuestionSelector needs writtenQuestions and correctQuestions to be able to display the correct state - const [writtenQuestions, setWrittenQuestions] = useState( - localStorage.getItem(langKey(lang, "writtenQuestions")) ? JSON.parse(localStorage.getItem(langKey(lang, "writtenQuestions"))!) : [] + const [writtenQuestions, setWrittenQuestions] = useState(() => + getStoredList(lang, engine, modeKey("writtenQuestions", editorMode)) ); - const [correctQuestions, setCorrectQuestions] = useState( - localStorage.getItem(langKey(lang, "correctQuestions")) ? JSON.parse(localStorage.getItem(langKey(lang, "correctQuestions"))!) : [] + const [correctQuestions, setCorrectQuestions] = useState(() => + getStoredList(lang, engine, modeKey("correctQuestions", editorMode)) ); + /** sql-formatter language based on engine */ + const formatterLang = engine === "postgresql" ? "postgresql" : "sqlite"; + // One-time migration: copy old unnamespaced keys to sv: prefix useEffect(() => { if (localStorage.getItem("i18n-migrated")) return; @@ -121,19 +159,11 @@ function App() { localStorage.setItem("i18n-migrated", "1"); }, []); - // Reload written/correct questions when language changes + // Reload written/correct questions when language or mode changes useEffect(() => { - setWrittenQuestions( - localStorage.getItem(langKey(lang, "writtenQuestions")) - ? JSON.parse(localStorage.getItem(langKey(lang, "writtenQuestions"))!) - : [] - ); - setCorrectQuestions( - localStorage.getItem(langKey(lang, "correctQuestions")) - ? JSON.parse(localStorage.getItem(langKey(lang, "correctQuestions"))!) - : [] - ); - }, [lang]); + setWrittenQuestions(getStoredList(lang, engine, modeKey("writtenQuestions", editorMode))); + setCorrectQuestions(getStoredList(lang, engine, modeKey("correctQuestions", editorMode))); + }, [lang, editorMode]); const resetResult = useCallback(() => { setResult(undefined); @@ -144,19 +174,67 @@ function App() { setQueryedView(null); }, []); + const switchEditorMode = useCallback((mode: "sql" | "ra") => { + // Save current query before switching + if (question && query !== undefined) { + const currentKey = modeKey(`questionId-${question.id}`, editorMode); + if (query === defaultQuery || query === "") { + localStorage.removeItem(engineKey(lang, engine, currentKey)); + } else { + localStorage.setItem(engineKey(lang, engine, currentKey), query); + } + } + setEditorMode(mode); + + setError(null); + resetResult(); + // Load query for the new mode + if (question) { + const newKey = modeKey(`questionId-${question.id}`, mode); + setQuery(localStorage.getItem(engineKey(lang, engine, newKey)) || (mode === "ra" ? "" : defaultQuery)); + } + // Reload progress for the new mode + setWrittenQuestions(getStoredList(lang, engine, modeKey("writtenQuestions", mode))); + setCorrectQuestions(getStoredList(lang, engine, modeKey("correctQuestions", mode))); + }, [resetResult, question, query, editorMode, lang, defaultQuery]); + const initDb = useCallback(async () => { - if (!dbArrayBuffer) return; + if (!dbData) return; resetResult(); - const SQL = await initSqlJs({ - locateFile: (file) => `/dist/sql.js/${file}`, - }); - const db = new SQL.Database(new Uint8Array(dbArrayBuffer)); - db.create_function("YEAR", (date: string) => new Date(date).getFullYear()); - db.create_function("MONTH", (date: string) => new Date(date).getMonth() + 1); - db.create_function("DAY", (date: string) => new Date(date).getDate()); - db.exec("PRAGMA foreign_keys = ON;"); + + let db: DatabaseEngine; + if (engine === "postgresql") { + try { + const { PGlite } = await import("@electric-sql/pglite"); + const pg = new PGlite(); + await pg.exec(dbData as string); + db = new PgliteEngine(pg); + } catch (e) { + // PGlite is a multi-MB WASM bundle loaded on demand; a failed fetch/init must + // not leave the app stuck with no usable database. Surface it and fall back to + // the always-available SQLite engine. + console.error("Failed to initialize the PostgreSQL engine:", e); + setError(t("engineLoadFailed")); + setEngine("sqlite"); + return; + } + } else { + const SQL = await initSqlJs({ + locateFile: (file) => `/dist/sql.js/${file}`, + }); + const sqliteDb = new SQL.Database(new Uint8Array(dbData as ArrayBuffer)); + sqliteDb.create_function("YEAR", (date: string) => new Date(date).getFullYear()); + sqliteDb.create_function("MONTH", (date: string) => new Date(date).getMonth() + 1); + sqliteDb.create_function("DAY", (date: string) => new Date(date).getDate()); + sqliteDb.exec("PRAGMA foreign_keys = ON;"); + db = new SqliteEngine(sqliteDb); + } + + // Extract schema for autocomplete + const schema = await db.getSchema(); + setDbSchema(schema); setDatabase(db); - }, [resetResult, dbArrayBuffer]); + }, [resetResult, dbData, engine, t, setEngine]); useEffect(() => { initDb(); @@ -175,6 +253,21 @@ function App() { setUrlParam("q", null); }, [lang, resetResult]); + // On engine change, keep the question but reload query and reset results + const prevEngineRef = useRef(engine); + useEffect(() => { + if (prevEngineRef.current === engine) return; + prevEngineRef.current = engine; + // Reload the query for this question under the new engine context + if (question) { + const key = modeKey(`questionId-${question.id}`, editorMode); + setQuery(localStorage.getItem(engineKey(lang, engine, key)) || (editorMode === "ra" ? "" : defaultQuery)); + } + setViews([]); + setDisplayViewsTable(false); + resetResult(); + }, [engine, question, editorMode, lang, defaultQuery, resetResult]); + // Restore question from URL param when questions become available const urlRestoredRef = useRef(false); useEffect(() => { @@ -190,7 +283,7 @@ function App() { const resolved = getQuestion(q.id, questions); if (resolved) { setQuestion(resolved); - setQuery(localStorage.getItem(langKey(lang, "questionId-" + resolved.id)) || defaultQuery); + setQuery(localStorage.getItem(engineKey(lang, engine, modeKey(`questionId-${resolved.id}`, editorMode))) || (editorMode === "ra" ? "" : defaultQuery)); } } } @@ -201,87 +294,100 @@ function App() { if (question) { setUrlParam("q", `${question.category.display_number}${question.display_sequence}`); } else if (urlRestoredRef.current) { - // Only clear ?q= after initial restore, not during it setUrlParam("q", null); } }, [question]); + // Sync editor mode to URL + useEffect(() => { + setUrlParam("mode", editorMode === "ra" ? "ra" : null); + }, [editorMode]); + // Track which language the current question was loaded in const questionLangRef = useRef(lang); useEffect(() => { if (question) questionLangRef.current = lang; }, [question, lang]); + // Validate query on change useEffect(() => { if (!database || !question || query === undefined) { return; } - // Don't write to localStorage if lang changed but question hasn't been cleared yet if (questionLangRef.current !== lang) { return; } - let wq = JSON.parse(localStorage.getItem(langKey(lang, "writtenQuestions")) || "[]"); + const wqStorageKey = modeKey("writtenQuestions", editorMode); + let wq = getStoredList(lang, engine, wqStorageKey); const initialLength = wq.length; + const storageKey = modeKey(`questionId-${question.id}`, editorMode); if (query === defaultQuery || query === "") { - localStorage.removeItem(langKey(lang, "questionId-" + question.id)); - // remove from writtenQuestions if it exists there as well - const filtered = wq.filter((id: number) => id !== question.id); - wq = filtered; + localStorage.removeItem(engineKey(lang, engine, storageKey)); + wq = wq.filter((id: number) => id !== question.id); } else { - localStorage.setItem(langKey(lang, "questionId-" + question.id), query); - // ensure that questionid is in localstorage writtenQuestions + localStorage.setItem(engineKey(lang, engine, storageKey), query); if (!wq.includes(question.id)) { wq.push(question.id); } } if (wq.length !== initialLength) { - localStorage.setItem(langKey(lang, "writtenQuestions"), JSON.stringify(wq)); + setStoredList(lang, engine, wqStorageKey, wq); setWrittenQuestions(wq); } - try { - // Check for multiple statements - let stmtCount = 0; - for (const stmt of database.iterateStatements(query)) { - stmtCount++; - stmt.free(); - if (stmtCount > 1) { + // Stale check for async validation + let stale = false; + const validate = async () => { + if (editorMode === "sql") { + const errorMsg = await database.validateStatements(query); + if (stale) return; + if (errorMsg === "multiple_statements") { setError(t("multipleStatements")); - return; + } else if (errorMsg) { + setError(errorMsg); + } else { + setError(null); + } + } else { + // In RA mode, try to parse and validate against database + try { + await raToSQL(query, database); + if (stale) return; + setError(null); + } catch (e) { + if (stale) return; + if (e instanceof RAError) { + setError(t("raParseError", { message: e.message })); + } else { + setError((e as Error).message); + } } } - setError(null); - } catch (e) { - // @ts-expect-error - Error.message is a string - setError(e.message); - } - }, [database, query, question, lang, defaultQuery, t]); + }; + validate(); + return () => { stale = true; }; + }, [database, query, question, lang, defaultQuery, t, editorMode]); - const refreshViews = useCallback((upsert: boolean) => { + const refreshViews = useCallback(async (upsert: boolean) => { if (!database) { return; } - const res = database.exec('SELECT name, sql FROM sqlite_master WHERE type="view"'); - let fetchedViews: View[] = []; - if (res.length !== 0) { - const fetched = res[0].values as string[][]; - fetchedViews = fetched.map(([name, query]) => ({ name, query })); - } + const fetchedViews = await database.getViews(); if (fetchedViews.length - views.length !== 0) { setDisplayViewsTable(true); } if (upsert) { - localStorage.setItem(langKey(lang, "views"), JSON.stringify(fetchedViews)); + localStorage.setItem(engineKey(lang, engine, "views"), JSON.stringify(fetchedViews)); } setViews(fetchedViews); // Recreate missing views from localStorage - const storedViews = localStorage.getItem(langKey(lang, "views")); + const storedViews = localStorage.getItem(engineKey(lang, engine, "views")); if (storedViews) { const savedViews: View[] = JSON.parse(storedViews); const missingViews = savedViews.filter( @@ -290,7 +396,7 @@ function App() { let recreated = 0; for (const view of missingViews) { try { - database.exec(view.query); + await database.exec(view.query); recreated++; } catch (e) { console.warn(`Failed to recreate view "${view.name}":`, (e as Error).message); @@ -302,72 +408,79 @@ function App() { } }, [database, views.length, lang]); - const runQuery = useCallback(() => { + const runQuery = useCallback(async () => { if (!database || query === undefined) { return; } try { - const res = database.exec(query); + let sqlToRun = query; + if (editorMode === "ra") { + try { + sqlToRun = await raToSQL(query, database); + } catch (e) { + if (e instanceof RAError) { + setError(t("raParseError", { message: e.message })); + } else { + setError((e as Error).message); + } + return; + } + } + const res = await database.exec(sqlToRun); setIsViewResult(false); setQueryedView(null); setEvaluatedQuery(query); if (res.length !== 0) { const { columns, values } = res[0]; - setResult({ columns, data: values }); + setResult({ columns, data: values as (string | number | Uint8Array | null)[][] }); } else { setResult({columns: [], data: []}); } - refreshViews(true); + await refreshViews(true); } catch (e) { - // @ts-expect-error - Error.message is a string - setError(e.message); + setError((e as Error).message); } - }, [database, query, refreshViews]); + }, [database, query, refreshViews, editorMode, t]); - const evalSql = useCallback((sql: string): Result => { + const evalSql = useCallback(async (sql: string): Promise => { if (!database) { return { columns: [], data: [] }; } try { - const res = database.exec(sql); - let result: Result; + const res = await database.exec(sql); if (res.length !== 0) { const { columns, values } = res[0]; - result = { columns, data: values }; - } else { - result = {columns: [], data: []}; + return { columns, data: values as (string | number | Uint8Array | null)[][] }; } - return result; + return { columns: [], data: [] }; } catch (e) { - // @ts-expect-error - Error.message is a string - alert("Error occurred while evaluating SQL Query internally: " + e.message); + alert("Error occurred while evaluating SQL Query internally: " + (e as Error).message); return { columns: [], data: [] }; } }, [database]); - const getViewResult = useCallback((name: string) => { + const getViewResult = useCallback(async (name: string) => { if (!database) { return; } try { const viewQuery = `SELECT * FROM ${name}`; - const res = database.exec(viewQuery); + const res = await database.exec(viewQuery); setIsViewResult(true); setQueryedView(name); setEvaluatedQuery(viewQuery); if (res.length !== 0) { const { columns, values } = res[0]; - setResult({ columns, data: values }); + setResult({ columns, data: values as (string | number | Uint8Array | null)[][] }); } else { setResult({columns: [], data: []}); } } catch (e) { - // @ts-expect-error - Error.message is a string - setError(e.message); + setError((e as Error).message); } }, [database]); - const deleteView = useCallback((name: string) => { + const deleteView = useCallback(async (name: string) => { if (!database) { return; } @@ -376,8 +489,8 @@ function App() { return; } - database.exec(`DROP VIEW ${name}`); - refreshViews(true); + await database.exec(`DROP VIEW ${name}`); + await refreshViews(true); if (isViewResult && queryedView === name) { resetResult(); @@ -406,26 +519,28 @@ function App() { setIsCorrect(true); setMatchedResult(matchedAlt ?? question.evaluable_result); - localStorage.setItem(langKey(lang, `correctQuestionId-${question.id}`), query); + const cKey = modeKey(`correctQuestionId-${question.id}`, editorMode); + localStorage.setItem(engineKey(lang, engine, cKey), query); setCorrectQueryMismatch(false); setLoadedQuestionCorrect(true); - const cq = JSON.parse(localStorage.getItem(langKey(lang, "correctQuestions")) || "[]"); + const cqStorageKey = modeKey("correctQuestions", editorMode); + const cq = getStoredList(lang, engine, cqStorageKey); if (!cq.includes(question.id)) { cq.push(question.id); - localStorage.setItem(langKey(lang, "correctQuestions"), JSON.stringify(cq)); + setStoredList(lang, engine, cqStorageKey, cq); setCorrectQuestions(cq); } - }, [result, question, query, evaluatedQuery, exportingStatus, lang]); + }, [result, question, query, evaluatedQuery, exportingStatus, lang, editorMode]); // Save query based on question const loadQuery = useCallback((_oldQuestion: Question | undefined, newQuestion: Question) => { - setQuery(localStorage.getItem(langKey(lang, "questionId-" + newQuestion.id)) || defaultQuery); - // This prevents user from ctrl-z'ing to a different question - if (editorRef.current) { - editorRef.current!.session = {history: { stack: [], offset: 0 }}; + const key = modeKey(`questionId-${newQuestion.id}`, editorMode); + setQuery(localStorage.getItem(engineKey(lang, engine, key)) || (editorMode === "ra" ? "" : defaultQuery)); + if (sqlEditorRef.current) { + sqlEditorRef.current.clearHistory(); } - }, [setQuery, lang, defaultQuery]); + }, [setQuery, lang, defaultQuery, editorMode]); // Update mismatch & loadedQuestionCorrect flags when query is changed useEffect(() => { @@ -433,7 +548,8 @@ function App() { return; } - const correctQuery = localStorage.getItem(langKey(lang, `correctQuestionId-${question.id}`)); + const cKey = modeKey(`correctQuestionId-${question.id}`, editorMode); + const correctQuery = localStorage.getItem(engineKey(lang, engine, cKey)); if (!correctQuery) { setCorrectQueryMismatch(false); setLoadedQuestionCorrect(false); @@ -442,30 +558,34 @@ function App() { setLoadedQuestionCorrect(true); - let currentQuery = ""; - try { - currentQuery = format(query + (query.endsWith(";") ? "" : ";"), { - language: "sqlite", + if (editorMode === "ra") { + setCorrectQueryMismatch(query.trim() !== correctQuery.trim()); + } else { + let currentQuery = ""; + try { + currentQuery = format(query + (query.endsWith(";") ? "" : ";"), { + language: formatterLang, + tabWidth: 2, + useTabs: false, + keywordCase: "upper", + dataTypeCase: "upper", + functionCase: "upper", + }); + } catch { + setCorrectQueryMismatch(true); + return; + } + const correctQueryFormatted = format(correctQuery + (correctQuery?.endsWith(";") ? "" : ";"), { + language: formatterLang, tabWidth: 2, useTabs: false, keywordCase: "upper", dataTypeCase: "upper", functionCase: "upper", }); - } catch { - setCorrectQueryMismatch(true); - return; + setCorrectQueryMismatch(currentQuery !== correctQueryFormatted); } - const correctQueryFormatted = format(correctQuery + (correctQuery?.endsWith(";") ? "" : ";"), { - language: "sqlite", - tabWidth: 2, - useTabs: false, - keywordCase: "upper", - dataTypeCase: "upper", - functionCase: "upper", - }); - setCorrectQueryMismatch(currentQuery !== correctQueryFormatted); - }, [database, question, query, lang]); + }, [database, question, query, lang, editorMode, formatterLang]); const exportData = useCallback((options?: { include?: number[]}) => { if (!database) { @@ -483,30 +603,37 @@ function App() { output += "/* --- BEGIN Metadata --- */\n"; output += "/* --- BEGIN Save Format Version --- */\n"; - output += "-- 3\n"; + output += "-- 4\n"; output += "/* --- END Save Format Version --- */\n"; output += "/* --- BEGIN Save Language --- */\n"; output += `-- ${lang}\n`; output += "/* --- END Save Language --- */\n"; + output += "/* --- BEGIN Save Engine --- */\n"; + output += `-- ${engine}\n`; + output += "/* --- END Save Engine --- */\n"; output += "/* --- END Metadata --- */\n"; output += "/* --- BEGIN Validation --- */\n"; - output += "/* --- BEGIN Submission Summary --- */\n"; - const writtenQueries = localStorage.getItem(langKey(lang, "correctQuestions")) || "[]"; - const parsed = JSON.parse(writtenQueries) as number[]; - const questionsString = parsed.filter((id) => options === undefined || (options.include && options.include.includes(id))).map((id) => { + const storedCorrectIds = getStoredList(lang, engine, "correctQuestions"); + const storedWrittenIds = getStoredList(lang, engine, "writtenQuestions"); + + const formatQuestionIds = (ids: number[]) => ids.map((id) => { const category = questions.find(c => c.questions.some(q => q.id === id))!; const q = category.questions.find(q => q.id === id)!; return { formatted: `${category.display_number}${q.display_sequence}`, number: category.display_number, sequence: q.display_sequence }; }).sort((a, b) => a.sequence.localeCompare(b.sequence)).sort((a, b) => a.number - b.number).map(q => q.formatted).join(", "); - output += `-- Written Questions: ${questionsString}\n`; + + const filterIds = (ids: number[]) => ids.filter((id) => options === undefined || (options.include && options.include.includes(id))); + + output += "/* --- BEGIN Submission Summary --- */\n"; + output += `-- Written Questions: ${formatQuestionIds(filterIds(storedCorrectIds))}\n`; output += "/* --- END Submission Summary --- */\n"; if (views.length > 0) { output += "/* --- BEGIN Views --- */\n"; const viewsString = views.map(view => { let out = format(view.query, { - language: "sqlite", + language: formatterLang, tabWidth: 2, useTabs: false, keywordCase: "upper", @@ -522,10 +649,8 @@ function App() { } output += "/* --- BEGIN Submission Queries --- */\n"; - const queriesStr = localStorage.getItem(langKey(lang, "correctQuestions")); - if (queriesStr) { - const parsed = JSON.parse(queriesStr) as number[]; - const sorted = parsed.filter((id) => options === undefined || (options.include && options.include.includes(id))).map((id) => { + if (storedCorrectIds.length > 0) { + const sorted = filterIds(storedCorrectIds).map((id) => { const category = questions.find(c => c.questions.some(q => q.id === id))!; const q = category.questions.find(q => q.id === id)!; return { category, question: q }; @@ -534,13 +659,13 @@ function App() { const questionQueries = sorted.map((id: number) => { const category = questions.find(c => c.questions.some(q => q.id === id))!; const q = category.questions.find(q => q.id === id)!; - const activeQuery = localStorage.getItem(langKey(lang, "correctQuestionId-" + id)); + const activeQuery = localStorage.getItem(engineKey(lang, engine, "correctQuestionId-" + id)); if (!activeQuery) { return ""; } let formatted = `/* --- BEGIN Question ${category.display_number}${q.display_sequence} (REFERENCE: ${q.id}) --- */\n`; formatted += format(activeQuery + (activeQuery.endsWith(";") ? "" : ";"), { - language: "sqlite", + language: formatterLang, tabWidth: 2, useTabs: false, keywordCase: "upper", @@ -556,59 +681,33 @@ function App() { output += "/* --- END Submission Queries --- */\n"; output += "/* --- BEGIN Save Summary --- */\n"; - const existingQueries = localStorage.getItem(langKey(lang, "writtenQuestions")) || "[]"; - const existingParsed = JSON.parse(existingQueries) as number[]; - const existingQuestions = existingParsed.map((id) => { - const category = questions.find(c => c.questions.some(q => q.id === id))!; - const q = category.questions.find(q => q.id === id)!; - return { formatted: `${category.display_number}${q.display_sequence}`, number: category.display_number, sequence: q.display_sequence }; - }).sort((a, b) => a.sequence.localeCompare(b.sequence)).sort((a, b) => a.number - b.number).map(q => q.formatted).join(", "); - output += `-- Written Questions: ${existingQuestions}\n`; + output += `-- Written Questions: ${formatQuestionIds(storedWrittenIds)}\n`; output += "/* --- END Save Summary --- */\n"; - output += "/* --- BEGIN Raw Queries --- */\n"; - output += "/*\n"; - const allQueries = localStorage.getItem(langKey(lang, "writtenQuestions")); - if (allQueries) { - const parsed = JSON.parse(allQueries); + const collectQueries = (ids: number[], keyPrefix: string) => { const queries: { [key: number]: string } = {}; - for (const id of parsed) { - const activeQuery = localStorage.getItem(langKey(lang, "questionId-" + id)); - if (!activeQuery) { - continue; - } - queries[id] = activeQuery; + for (const id of ids) { + const q = localStorage.getItem(engineKey(lang, engine, keyPrefix + id)); + if (q) queries[id] = q; } - output += JSON.stringify(queries, null, 0).replace(/\*\//g, "\\*/"); - } + return queries; + }; + + output += "/* --- BEGIN Raw Queries --- */\n"; + output += "/*\n"; + output += JSON.stringify(collectQueries(storedWrittenIds, "questionId-"), null, 0).replace(/\*\//g, "\\*/"); output += "\n*/\n"; output += "/* --- END Raw Queries --- */\n"; output += "/* --- BEGIN Correct Raw Queries --- */\n"; output += "/*\n"; - const allCorrectQueries = localStorage.getItem(langKey(lang, "correctQuestions")); - if (allCorrectQueries) { - const parsed = JSON.parse(allCorrectQueries); - const queries: { [key: number]: string } = {}; - for (const id of parsed) { - const activeQuery = localStorage.getItem(langKey(lang, "correctQuestionId-" + id)); - if (!activeQuery) { - continue; - } - queries[id] = activeQuery; - } - output += JSON.stringify(queries, null, 0).replace(/\*\//g, "\\*/"); - } + output += JSON.stringify(collectQueries(storedCorrectIds, "correctQuestionId-"), null, 0).replace(/\*\//g, "\\*/"); output += "\n*/\n"; output += "/* --- END Correct Raw Queries --- */\n"; output += "/* --- BEGIN Raw List Dumps --- */\n"; - output += "-- " + (localStorage.getItem(langKey(lang, "writtenQuestions")) === null ? "[]" : localStorage.getItem(langKey(lang, "writtenQuestions"))) + "\n"; - output += "-- " + (localStorage.getItem(langKey(lang, "correctQuestions")) === null ? "[]" : - JSON.stringify((JSON.parse(localStorage.getItem(langKey(lang, "correctQuestions"))!) as number[]) - .filter((id) => options === undefined || (options.include && options.include.includes(id)))) - ) + "\n"; + output += "-- " + JSON.stringify(storedWrittenIds) + "\n"; + output += "-- " + JSON.stringify(filterIds(storedCorrectIds)) + "\n"; output += "/* --- END Raw List Dumps --- */\n"; output += "/* --- END Validation --- */\n"; - // Calculate hash of everything within the validation block const hashValue = sha256(output.slice(output.indexOf("/* --- BEGIN Validation Block --- */"), output.indexOf("/* --- END Validation Block --- */"))); output += `/* --- BEGIN Hash --- */\n-- ${hashValue}\n/* --- END Hash --- */\n`; output += "/* --- END DO NOT EDIT --- */\n"; @@ -619,47 +718,47 @@ function App() { const a = document.createElement("a"); const formattedTimestamp = formatFns(new Date(), "yyyyMMdd_HHmm"); a.href = url; - a.download = `validator_${lang}_${formattedTimestamp}.sql`;; + a.download = `validator_${lang}_${engine}_${formattedTimestamp}.sql`; document.body.appendChild(a); a.click(); document.body.removeChild(a); URL.revokeObjectURL(url); - }, [database, views, lang, questions]); + }, [database, views, lang, questions, formatterLang]); - const applyMergedData = useCallback((merged: ParsedSaveData) => { + const applyMergedData = useCallback(async (merged: ParsedSaveData) => { // Clear current data - const oldWritten: number[] = JSON.parse(localStorage.getItem(langKey(lang, "writtenQuestions")) || "[]"); - oldWritten.forEach(id => localStorage.removeItem(langKey(lang, `questionId-${id}`))); - const oldCorrect: number[] = JSON.parse(localStorage.getItem(langKey(lang, "correctQuestions")) || "[]"); - oldCorrect.forEach(id => localStorage.removeItem(langKey(lang, `correctQuestionId-${id}`))); - localStorage.removeItem(langKey(lang, "writtenQuestions")); - localStorage.removeItem(langKey(lang, "correctQuestions")); + getStoredList(lang, engine, "writtenQuestions").forEach(id => localStorage.removeItem(engineKey(lang, engine, `questionId-${id}`))); + getStoredList(lang, engine, "correctQuestions").forEach(id => localStorage.removeItem(engineKey(lang, engine, `correctQuestionId-${id}`))); + localStorage.removeItem(engineKey(lang, engine, "writtenQuestions")); + localStorage.removeItem(engineKey(lang, engine, "correctQuestions")); // Write merged data for (const [key, value] of Object.entries(merged.rawQueries)) { - localStorage.setItem(langKey(lang, `questionId-${key}`), value); + localStorage.setItem(engineKey(lang, engine, `questionId-${key}`), value); if (question !== undefined && Number(key) === question.id) { setQuery(value); } } for (const [key, value] of Object.entries(merged.correctQueries)) { - localStorage.setItem(langKey(lang, `correctQuestionId-${key}`), value); + localStorage.setItem(engineKey(lang, engine, `correctQuestionId-${key}`), value); } setWrittenQuestions(merged.writtenQuestionIds); setCorrectQuestions(merged.correctQuestionIds); - localStorage.setItem(langKey(lang, "writtenQuestions"), JSON.stringify(merged.writtenQuestionIds)); - localStorage.setItem(langKey(lang, "correctQuestions"), JSON.stringify(merged.correctQuestionIds)); + setStoredList(lang, engine, "writtenQuestions", merged.writtenQuestionIds); + setStoredList(lang, engine, "correctQuestions", merged.correctQuestionIds); // Update views in database - for (const view of views) { - database!.exec(`DROP VIEW ${view.name}`); - } - for (const view of merged.views) { - database!.exec(view.query); + if (database) { + for (const view of views) { + await database.exec(`DROP VIEW ${view.name}`); + } + for (const view of merged.views) { + await database.exec(view.query); + } + await refreshViews(true); } - refreshViews(true); }, [database, question, refreshViews, views, lang]); const importData = useCallback(() => { @@ -683,7 +782,7 @@ function App() { } const parsed = parseImportFile(data); setPendingImportData(parsed); - const local = getLocalData(lang); + const local = getLocalData(lang, engine); const analysis = detectConflicts(local, parsed); importDialogRef.current?.open(analysis); }; @@ -711,14 +810,14 @@ function App() { return; } - const toExportQuery = localStorage.getItem(langKey(lang, `correctQuestionId-${question.id}`)); + const toExportQuery = localStorage.getItem(engineKey(lang, engine, modeKey(`correctQuestionId-${question.id}`, editorMode))); if (!toExportQuery) { return; } setExportQuery(toExportQuery); setExportQuestion(question); - }, [exportView, loadedQuestionCorrect, question, lang]); + }, [exportView, loadedQuestionCorrect, question, lang, editorMode]); const exportImageView = useCallback((name: string) => { if (!database || exportQuery) { @@ -738,74 +837,122 @@ function App() { setExportingStatus(1); - const triggerDownload = (dataUrl: string, filename: string) => { - const byteString = atob(dataUrl.split(",")[1]); - const mimeType = dataUrl.split(",")[0].split(":")[1].split(";")[0]; - const ab = new ArrayBuffer(byteString.length); - const ia = new Uint8Array(ab); - for (let i = 0; i < byteString.length; i++) { - ia[i] = byteString.charCodeAt(i); + // Wait for CodeMirror to render before capturing + const capture = () => { requestAnimationFrame(() => { + if (!exportRendererRef.current) { setExportingStatus(0); return; } + + const triggerDownload = (dataUrl: string, filename: string) => { + const byteString = atob(dataUrl.split(",")[1]); + const mimeType = dataUrl.split(",")[0].split(":")[1].split(";")[0]; + const ab = new ArrayBuffer(byteString.length); + const ia = new Uint8Array(ab); + for (let i = 0; i < byteString.length; i++) { + ia[i] = byteString.charCodeAt(i); + } + const blob = new Blob([ab], { type: mimeType }); + const blobUrl = URL.createObjectURL(blob); + + const link = document.createElement("a"); + link.download = filename; + link.href = blobUrl; + link.style.display = "none"; + document.body.appendChild(link); + link.click(); + + setTimeout(() => { + document.body.removeChild(link); + URL.revokeObjectURL(blobUrl); + }, 100); + }; + + // View + if (exportView) { + toPng(exportRendererRef.current, { + canvasWidth: exportRendererRef.current.scrollWidth, + width: exportRendererRef.current.scrollWidth, + canvasHeight: exportRendererRef.current.scrollHeight, + height: exportRendererRef.current.scrollHeight, + pixelRatio: 1 + }).then((dataUrl) => { + triggerDownload(dataUrl, `validator_${exportView.name}.png`); + setExportView(undefined); + setExportingStatus(0); + }); + return; + } + + // Question + if (!question || !exportQuery || !exportQuestion) { + return; } - const blob = new Blob([ab], { type: mimeType }); - const blobUrl = URL.createObjectURL(blob); - - const link = document.createElement("a"); - link.download = filename; - link.href = blobUrl; - link.style.display = "none"; - document.body.appendChild(link); - link.click(); - - setTimeout(() => { - document.body.removeChild(link); - URL.revokeObjectURL(blobUrl); - }, 100); - }; - // View - if (exportView) { - toPng(exportRendererRef.current, { - canvasWidth: exportRendererRef.current.scrollWidth, - width: exportRendererRef.current.scrollWidth, - canvasHeight: exportRendererRef.current.scrollHeight, - height: exportRendererRef.current.scrollHeight, + const exportRenderer = exportRendererRef.current; + toPng(exportRenderer, { + canvasWidth: exportRenderer.scrollWidth, + width: exportRenderer.scrollWidth, + canvasHeight: exportRenderer.scrollHeight, + height: exportRenderer.scrollHeight, pixelRatio: 1 }).then((dataUrl) => { - triggerDownload(dataUrl, `validator_${exportView.name}.png`); - setExportView(undefined); + triggerDownload(dataUrl, `validator_${editorMode === "ra" ? "ra_" : ""}${question.id}_${question.category.display_number}${question.display_sequence}.png`); + setExportQuestion(undefined); + setExportQuery(undefined); setExportingStatus(0); }); + + }); }; // end capture + rAF + capture(); + }, [evaluatedQuery, exportQuery, exportRendererRef, getTheme, isDarkMode, exportingStatus, question, resetResult, setTheme, exportQuestion, exportView]); + + // Export renderer needs sync evalSql — we compute it eagerly when export is triggered + const [exportResult, setExportResult] = useState<{ result: Result; isCorrect: boolean } | null>(null); + const [exportViewResult, setExportViewResult] = useState(null); + + useEffect(() => { + if (!exportQuestion || !exportQuery || !database) { + setExportResult(null); return; } + const compute = async () => { + let sqlForExport = exportQuery; + if (editorMode === "ra") { + try { sqlForExport = await raToSQL(exportQuery, database); } catch { /* use raw */ } + } + const result = await evalSql(sqlForExport); + const correct = isCorrectResult(exportQuestion.evaluable_result, result) || (exportQuestion.alternative_evaluable_results?.some(alt => isCorrectResult(alt, result)) ?? false); + setExportResult({ result, isCorrect: correct }); + }; + compute(); + }, [exportQuestion, exportQuery, editorMode, database, evalSql]); - // Question - if (!question || !exportQuery || !exportQuestion) { + useEffect(() => { + if (!exportView || !database) { + setExportViewResult(null); return; } - - const exportRenderer = exportRendererRef.current; - toPng(exportRenderer, { - canvasWidth: exportRenderer.scrollWidth, - width: exportRenderer.scrollWidth, - canvasHeight: exportRenderer.scrollHeight, - height: exportRenderer.scrollHeight, - pixelRatio: 1 - }).then((dataUrl) => { - triggerDownload(dataUrl, `validator_${question.id}_${question.category.display_number}${question.display_sequence}.png`); - setExportQuestion(undefined); - setExportQuery(undefined); - setExportingStatus(0); - }); - }, [evaluatedQuery, exportQuery, exportRendererRef, getTheme, isDarkMode, exportingStatus, question, resetResult, setTheme, exportQuestion, exportView]); + evalSql(`SELECT * FROM ${exportView.name}`).then(setExportViewResult); + }, [exportView, database, evalSql]); + + const exportRendererProps = useMemo(() => { + if (!exportQuestion || !exportQuery || !exportResult) return null; + return { + isCorrect: exportResult.isCorrect, + question: exportQuestion, + code: exportQuery, + result: exportResult.result, + mode: editorMode, + }; + }, [exportQuestion, exportQuery, exportResult, editorMode]); return (
- {exportQuestion && exportQuery && isCorrectResult(alt, evalSql(exportQuery))) ?? false), question: exportQuestion, code: exportQuery, result: evalSql(exportQuery)}} ref={exportRendererRef} />} - {exportView && } + {exportRendererProps && } + {exportView && exportViewResult && }
+

SQL Validator

@@ -817,55 +964,79 @@ function App() { {/* Query Section with Header */}
- {t("query")} - - - - - - exportImageQuery()} - disabled={!loadedQuestionCorrect} +
+ {t("query")} +
+ + / + +
+
+
+ + + + + + + exportImageQuery()} + disabled={!loadedQuestionCorrect} + > + {t("exportPng")} + + importData()}> + {t("importData")} + + exportModalRef.current?.openDialog()}> + {t("exportData")} + + + +
- {query === undefined ? - null} - highlight={code => highlight(code, languages.sql)} - padding={10} - tabSize={2} - className="font-mono text-base w-full dark:bg-slate-800 bg-slate-100 min-h-32 rounded-md" - ref={editorRef} - /> - : - setQuery(code)} - highlight={code => highlight(code, languages.sql)} - padding={10} - tabSize={2} - className="font-mono text-base w-full dark:bg-slate-800 bg-slate-100 border dark:border-slate-600 border-gray-300 min-h-32 rounded-md" - ref={editorRef} + ref={sqlEditorRef} + value={query ?? (t("selectQuestionComment"))} + onChange={query !== undefined ? setQuery : undefined} + schema={dbSchema} + engine={engine} + isDarkMode={isDarkMode()} + disabled={query === undefined} + readOnly={query === undefined} + editorSettings={editorSettings} + className="font-mono w-full dark:bg-slate-800 bg-slate-100 border dark:border-slate-600 border-gray-300 min-h-32 rounded-md overflow-hidden" /> - } + ) : ( + + )} + {editorMode === "ra" && query !== undefined && }
{/* Error/Warning and Action Buttons - Same Row */} @@ -884,7 +1055,12 @@ function App() { {t("queryMismatch")}
)} - {t("sqlReference")} + {editorMode === "ra" + ? + : engine === "postgresql" + ? {t("sqlReferencePostgresql")} + : {t("sqlReference")} + } {/* Right side - Buttons */} @@ -894,30 +1070,32 @@ function App() { variant="outline" onClick={() => { if (!question) return; - setQuery(localStorage.getItem(langKey(lang, `correctQuestionId-${question.id}`)) || defaultQuery); + setQuery(localStorage.getItem(engineKey(lang, engine, modeKey(`correctQuestionId-${question.id}`, editorMode))) || (editorMode === "ra" ? "" : defaultQuery)); }} className="border-yellow-500 text-yellow-600 dark:text-yellow-400 hover:bg-yellow-50 dark:hover:bg-yellow-900/20" > {t("loadSaved")} )} - + {editorMode === "sql" && ( + + )} + + + + {t("editorSettings") || "Editor Settings"} + +
+ onSettingsChange({ autocomplete: v })} + /> + onSettingsChange({ lineNumbers: v })} + /> + onSettingsChange({ highlightActiveLine: v })} + /> +
+ + + ); +}; + +function SettingToggle({ label, checked, onChange }: { label: string; checked: boolean; onChange: (v: boolean) => void }) { + const id = label.toLowerCase().replace(/\s+/g, "-"); + return ( +
+ + onChange(v === true)} + className="h-5 w-5 rounded border border-gray-300 dark:border-slate-600 data-[state=checked]:bg-blue-600 data-[state=checked]:border-blue-600 flex items-center justify-center" + > + {checked && ✓} + +
+ ); +} + +export default EditorSettingsDialog; diff --git a/src/EngineSelector.tsx b/src/EngineSelector.tsx new file mode 100644 index 0000000..a50513a --- /dev/null +++ b/src/EngineSelector.tsx @@ -0,0 +1,31 @@ +import React from "react"; +import { + Select, + SelectContent, + SelectItem, + SelectTrigger, + SelectValue, +} from "@/components/ui/select"; +import { useLanguage } from "./i18n/context"; +import { AVAILABLE_ENGINES } from "./i18n/languages"; + +const EngineSelector: React.FC = () => { + const { engine, setEngine } = useLanguage(); + + return ( + + ); +}; + +export default EngineSelector; diff --git a/src/ExportRenderer.tsx b/src/ExportRenderer.tsx index cfa48de..cd61022 100644 --- a/src/ExportRenderer.tsx +++ b/src/ExportRenderer.tsx @@ -1,13 +1,12 @@ import React from "react"; -import Editor from "react-simple-code-editor"; import { format } from "sql-formatter"; -// @ts-expect-error - No types available -import { highlight, languages } from "prismjs/components/prism-core"; import { Result } from "./utils"; import ResultTable from "./ResultTable"; import { Question } from "./QuestionSelector"; import { View } from "./ViewsTable"; import { useLanguage } from "./i18n/context"; +import { renderRAPreview } from "./ra-engine/RAPreview"; +import SqlEditor from "./SqlEditor"; interface ExportRendererProps { query?: { @@ -15,6 +14,7 @@ interface ExportRendererProps { isCorrect: boolean; code: string; result: Result; + mode?: "sql" | "ra"; }; view?: { view: View; @@ -23,7 +23,8 @@ interface ExportRendererProps { } const ExportRenderer = React.forwardRef(({ query, view }, ref) => { - const { t } = useLanguage(); + const { t, engine } = useLanguage(); + const formatterLang = engine === "postgresql" ? "postgresql" : "sqlite"; if (!query && !view) { return null; @@ -55,23 +56,30 @@ const ExportRenderer = React.forwardRef(({

{t("exportViewCodeLabel", { name: view.view.name })}

} - null} - highlight={code => highlight(code, languages.sql)} - padding={10} - tabSize={4} - className="font-mono text-xl w-full bg-slate-200 border-2 max-w-4xl min-h-40 border-none my-2" - /> + {query?.mode === "ra" ? ( +
+ ) : ( +
+ +
+ )} {query &&

{t("exportResultLabel")}

} diff --git a/src/ImportDialog.tsx b/src/ImportDialog.tsx index af181c6..1a7792d 100644 --- a/src/ImportDialog.tsx +++ b/src/ImportDialog.tsx @@ -80,7 +80,7 @@ function SqlBlock({ code, changedLines, variant }: { code: string; changedLines? const ImportDialog = forwardRef( ({ importedData, onOverwrite, onMergeApply }, ref) => { - const { t, lang, questions } = useLanguage(); + const { t, lang, engine, questions } = useLanguage(); const [isOpen, setIsOpen] = useState(false); const [step, setStep] = useState<"choose" | "resolve">("choose"); const [analysis, setAnalysis] = useState(null); @@ -169,6 +169,11 @@ const ImportDialog = forwardRef( {t("languageMismatchWarning", { fileLang: importedData.language })}

)} + {importedData && importedData.engine !== engine && ( +

+ {t("engineMismatchWarning", { fileEngine: importedData.engine })} +

+ )}
+ + +
+

Licenses

+ +
+ +
+
+

Project Licenses

+
+ {PROJECT_LICENSES.map(l => ( +
+
+ {l.name} + {l.license} +
+

{l.description}

+
+ ))} +
+
+ +
+

Third-Party Dependencies

+ {deps.length === 0 ? ( +

Loading...

+ ) : ( +
+ + + + + + + + + + {deps.map(dep => ( + + + + + + ))} + +
PackageVersionLicense
+ {dep.repository ? ( + {dep.name} + ) : dep.name} + {dep.version}{dep.license}
+
+ )} +
+
+ + + + ); +} diff --git a/src/SqlEditor.tsx b/src/SqlEditor.tsx new file mode 100644 index 0000000..db5cc4b --- /dev/null +++ b/src/SqlEditor.tsx @@ -0,0 +1,133 @@ +import { useCallback, useImperativeHandle, useMemo, useRef, forwardRef } from "react"; +import CodeMirror, { type ReactCodeMirrorRef } from "@uiw/react-codemirror"; +import { sql, PostgreSQL, SQLite } from "@codemirror/lang-sql"; +import { oneDark } from "@codemirror/theme-one-dark"; +import { EditorView, keymap } from "@codemirror/view"; +import { EditorState } from "@codemirror/state"; +import { acceptCompletion } from "@codemirror/autocomplete"; +import type { Extension } from "@codemirror/state"; +import type { EngineType } from "./i18n/languages"; +import type { EditorSettings } from "./useEditorSettings"; +import { raStreamLanguage } from "./ra-engine/raLanguage"; + +export interface SqlEditorHandle { + clearHistory(): void; +} + +interface SqlEditorProps { + value: string; + onChange?: (value: string) => void; + schema?: Record; + engine?: EngineType; + mode?: "sql" | "ra"; + isDarkMode?: boolean; + readOnly?: boolean; + disabled?: boolean; + className?: string; + id?: string; + editorSettings?: EditorSettings; +} + +const baseStyle = EditorView.theme({ + "&.cm-editor": { + fontSize: "1rem", + backgroundColor: "transparent", + }, + ".cm-content": { + fontFamily: "ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace", + padding: "10px", + }, + ".cm-gutters": { + backgroundColor: "transparent", + border: "none", + }, + ".cm-activeLine": { + backgroundColor: "transparent", + }, + "&.cm-editor.cm-focused": { + outline: "none", + }, +}); + +const SqlEditor = forwardRef(({ + value, + onChange, + schema, + engine = "sqlite", + mode = "sql", + isDarkMode = false, + readOnly = false, + disabled = false, + className = "", + id, + editorSettings, +}, ref) => { + const cmRef = useRef(null); + + const autocomplete = engine === "postgresql" && (editorSettings?.autocomplete ?? true); + const lineNumbers = editorSettings?.lineNumbers ?? false; + const highlightActiveLine = editorSettings?.highlightActiveLine ?? true; + const tabSize = editorSettings?.tabSize ?? 2; + + useImperativeHandle(ref, () => ({ + clearHistory() { + // CodeMirror manages history per-state; question switching replaces value + // which naturally resets the undo stack + }, + })); + + const handleChange = useCallback((val: string) => { + if (onChange) onChange(val); + }, [onChange]); + + const extensions = useMemo((): Extension[] => { + const exts: Extension[] = [baseStyle, EditorState.tabSize.of(tabSize)]; + + if (mode === "ra") { + exts.push(raStreamLanguage); + } else { + const dialect = engine === "postgresql" ? PostgreSQL : SQLite; + exts.push(sql({ + dialect, + schema: autocomplete ? schema : undefined, + upperCaseKeywords: true, + })); + if (autocomplete) { + exts.push(keymap.of([{ key: "Tab", run: acceptCompletion }])); + } + } + + if (isDarkMode) { + exts.push(oneDark); + } + + return exts; + }, [engine, mode, schema, isDarkMode, autocomplete, tabSize]); + + const isInteractive = !readOnly && !disabled; + + return ( + + ); +}); + +SqlEditor.displayName = "SqlEditor"; +export default SqlEditor; diff --git a/src/ViewsTable.tsx b/src/ViewsTable.tsx index adf055e..fc36e76 100644 --- a/src/ViewsTable.tsx +++ b/src/ViewsTable.tsx @@ -1,5 +1,3 @@ -import "prismjs/components/prism-sql"; -import "prismjs/themes/prism.css"; import React from "react"; import { Upload, Trash2 } from "lucide-react"; import { Button } from "@/components/ui/button"; diff --git a/src/database/pgNormalize.ts b/src/database/pgNormalize.ts new file mode 100644 index 0000000..92ff01e --- /dev/null +++ b/src/database/pgNormalize.ts @@ -0,0 +1,40 @@ +/** + * Normalize a PostgreSQL (PGlite) value so it matches the shape the app compares + * against. Result comparison (`isCorrectResult`) is strictly typed, and the default + * SQLite engine returns plain JS numbers/strings. PostgreSQL is more type-faithful: + * it hands back `Date` objects, real booleans, and — crucially — NUMERIC/DECIMAL and + * BIGINT as *strings*. Left untouched those diverge from both the SQLite engine and + * the generated PG oracle, so we coerce them here. + * + * The numeric coercion is TYPE-AWARE (keyed on the column's PostgreSQL OID) on purpose: + * text columns that merely look numeric (personnummer, postal codes) must NOT be turned + * into numbers. Only genuine NUMERIC/BIGINT columns are coerced. + * + * This helper is shared by the live engine (`pgliteEngine.ts`) and the offline oracle + * generator (`scripts/generate-language.ts`) so the two can never drift apart. + */ + +// PostgreSQL type OIDs (from pg_catalog.pg_type). +const OID_INT8 = 20; // bigint — also what COUNT()/SUM(int) report +const OID_NUMERIC = 1700; // numeric/decimal, and the result type of AVG() and EXTRACT() + +export function normalizePgValue(val: unknown, dataTypeID?: number): unknown { + if (val === null || val === undefined) return null; + // DATE / TIMESTAMP come back as JS Date → "YYYY-MM-DD" (matches SQLite's text dates). + if (val instanceof Date) return val.toISOString().split("T")[0]; + // BOOLEAN → 0/1 (SQLite has no boolean type; it stores 0/1). + if (typeof val === "boolean") return val ? 1 : 0; + // PGlite returns NUMERIC/DECIMAL and (out-of-range) BIGINT as strings; SQLite returns + // them as JS numbers. Coerce, but only for genuinely numeric column types. + if ( + typeof val === "string" && + (dataTypeID === OID_NUMERIC || dataTypeID === OID_INT8) && + val.trim() !== "" + ) { + const n = Number(val); + if (!Number.isNaN(n)) return n; + } + // bigint primitive (if PGlite ever returns one) → number. + if (typeof val === "bigint") return Number(val); + return val; +} diff --git a/src/database/pgliteEngine.ts b/src/database/pgliteEngine.ts new file mode 100644 index 0000000..a8683c3 --- /dev/null +++ b/src/database/pgliteEngine.ts @@ -0,0 +1,97 @@ +import type { PGlite } from "@electric-sql/pglite"; +import type { DatabaseEngine, QueryResult } from "./types"; +import { normalizePgValue } from "./pgNormalize"; + +export class PgliteEngine implements DatabaseEngine { + readonly engine = "postgresql" as const; + private db: PGlite; + + constructor(db: PGlite) { + this.db = db; + } + + async exec(sql: string): Promise { + // rowMode "array" returns each row as a positional array aligned with `fields`. + // Object mode keys rows by column name, which silently collapses duplicate column + // names (e.g. `SELECT namn, namn` or self-joins) down to a single value. + const results = await this.db.exec(sql, { rowMode: "array" }); + return results.map(r => ({ + columns: r.fields.map(f => f.name), + values: (r.rows as unknown[][]).map(row => + row.map((val, i) => normalizePgValue(val, r.fields[i].dataTypeID)), + ), + })); + } + + async getViews(): Promise<{ name: string; query: string }[]> { + const res = await this.db.query<{ viewname: string; definition: string }>( + "SELECT viewname, definition FROM pg_views WHERE schemaname = 'public'" + ); + return res.rows.map(r => ({ + name: r.viewname, + query: `CREATE VIEW ${r.viewname} AS ${r.definition}`, + })); + } + + async getSchema(): Promise> { + const res = await this.db.query<{ table_name: string; column_name: string }>( + "SELECT table_name, column_name FROM information_schema.columns WHERE table_schema = 'public' ORDER BY table_name, ordinal_position" + ); + const schema: Record = {}; + for (const row of res.rows) { + if (!schema[row.table_name]) schema[row.table_name] = []; + schema[row.table_name].push(row.column_name); + } + return schema; + } + + async validateStatements(sql: string): Promise { + // Count semicolons outside of string literals + const stripped = sql.replace(/'[^']*'/g, ""); // remove string literals + const statements = stripped.split(";").filter(s => s.trim().length > 0); + if (statements.length > 1) { + return "multiple_statements"; + } + // Use EXPLAIN to validate syntax without executing + if (statements.length === 1) { + try { + await this.db.query(`EXPLAIN ${sql}`); + } catch (e) { + return (e as Error).message; + } + } + return null; + } + + async getColumnNames(sql: string): Promise { + // For bare table names, use information_schema + if (/^\w+$/.test(sql.trim())) { + const tableName = sql.trim(); + const res = await this.db.query<{ column_name: string }>( + "SELECT column_name FROM information_schema.columns WHERE table_schema = 'public' AND table_name = $1 ORDER BY ordinal_position", + [tableName] + ); + if (res.rows.length > 0) { + return res.rows.map(r => r.column_name); + } + // PostgreSQL lowercases unquoted identifiers, try lowercase + const resLower = await this.db.query<{ column_name: string }>( + "SELECT column_name FROM information_schema.columns WHERE table_schema = 'public' AND table_name = $1 ORDER BY ordinal_position", + [tableName.toLowerCase()] + ); + if (resLower.rows.length > 0) { + return resLower.rows.map(r => r.column_name); + } + throw new Error(`Table '${tableName}' does not exist`); + } + + // For complex expressions, probe with LIMIT 0 + const probeSQL = `SELECT * FROM (${sql}) AS _probe LIMIT 0`; + const res = await this.db.query(probeSQL); + return res.fields.map(f => f.name); + } + + async close(): Promise { + await this.db.close(); + } +} diff --git a/src/database/sqliteEngine.ts b/src/database/sqliteEngine.ts new file mode 100644 index 0000000..00fc26d --- /dev/null +++ b/src/database/sqliteEngine.ts @@ -0,0 +1,79 @@ +import type { Database } from "sql.js"; +import type { DatabaseEngine, QueryResult } from "./types"; + +export class SqliteEngine implements DatabaseEngine { + readonly engine = "sqlite" as const; + private db: Database; + + constructor(db: Database) { + this.db = db; + } + + async exec(sql: string): Promise { + const results = this.db.exec(sql); + return results.map(r => ({ + columns: r.columns, + values: r.values as unknown[][], + })); + } + + async getViews(): Promise<{ name: string; query: string }[]> { + const res = this.db.exec("SELECT name, sql FROM sqlite_master WHERE type='view'"); + if (res.length === 0) return []; + return (res[0].values as string[][]).map(([name, query]) => ({ name, query })); + } + + async getSchema(): Promise> { + const schema: Record = {}; + const tables = this.db.exec("SELECT name FROM sqlite_master WHERE type='table' AND name NOT LIKE 'sqlite_%'"); + if (tables.length === 0) return schema; + for (const row of tables[0].values) { + const tableName = row[0] as string; + const cols = this.db.exec(`PRAGMA table_info(${tableName})`); + if (cols.length > 0) { + schema[tableName] = cols[0].values.map(r => r[1] as string); + } + } + return schema; + } + + async validateStatements(sql: string): Promise { + try { + let count = 0; + for (const stmt of this.db.iterateStatements(sql)) { + count++; + stmt.free(); + if (count > 1) { + return "multiple_statements"; + } + } + return null; + } catch (e) { + return (e as Error).message; + } + } + + async getColumnNames(sql: string): Promise { + // For bare table names, use PRAGMA table_info + if (/^\w+$/.test(sql.trim())) { + const tableName = sql.trim(); + const res = this.db.exec(`PRAGMA table_info(${tableName})`); + if (res.length > 0 && res[0].values.length > 0) { + return res[0].values.map(row => String(row[1])); + } + throw new Error(`Table '${tableName}' does not exist`); + } + + // For complex expressions, use prepare to get column names + const probeSQL = `SELECT * FROM (${sql}) LIMIT 0`; + const stmt = this.db.prepare(probeSQL); + stmt.step(); + const cols = stmt.getColumnNames(); + stmt.free(); + return cols; + } + + async close(): Promise { + this.db.close(); + } +} diff --git a/src/database/types.ts b/src/database/types.ts new file mode 100644 index 0000000..1c8a244 --- /dev/null +++ b/src/database/types.ts @@ -0,0 +1,23 @@ +export type EngineType = "sqlite" | "postgresql"; + +export interface QueryResult { + columns: string[]; + values: unknown[][]; +} + +export interface DatabaseEngine { + /** Execute SQL and return results (one per statement) */ + exec(sql: string): Promise; + /** List all user-created views */ + getViews(): Promise<{ name: string; query: string }[]>; + /** Get table→column[] map for autocomplete */ + getSchema(): Promise>; + /** Validate that input contains at most one statement. Returns error message if invalid. */ + validateStatements(sql: string): Promise; + /** Get column names produced by a SQL expression (for RA engine) */ + getColumnNames(sql: string): Promise; + /** The engine type */ + readonly engine: EngineType; + /** Close the database connection */ + close(): Promise; +} diff --git a/src/i18n/context.tsx b/src/i18n/context.tsx index a110792..b40e242 100644 --- a/src/i18n/context.tsx +++ b/src/i18n/context.tsx @@ -1,5 +1,5 @@ import React, { createContext, useCallback, useContext, useEffect, useState } from "react"; -import { AVAILABLE_LANGUAGES, DEFAULT_LANGUAGE } from "./languages"; +import { AVAILABLE_LANGUAGES, DEFAULT_LANGUAGE, type EngineType } from "./languages"; import { uiStrings } from "./ui-strings"; export interface QuestionCategory { @@ -20,6 +20,9 @@ export interface QuestionCategory { }>; } +/** Database data: ArrayBuffer for SQLite, string (SQL dump) for PostgreSQL */ +export type DbData = ArrayBuffer | string; + interface LanguageContextValue { /** Current language code */ lang: string; @@ -29,30 +32,46 @@ interface LanguageContextValue { t: (key: string, params?: Record) => string; /** The question pool for the current language */ questions: QuestionCategory[]; - /** The database ArrayBuffer for the current language */ - dbArrayBuffer: ArrayBuffer | null; + /** The database data for the current language + engine */ + dbData: DbData | null; /** Default query for the current language */ defaultQuery: string; + /** Current database engine */ + engine: EngineType; + /** Switch engine */ + setEngine: (engine: EngineType) => void; } const LanguageContext = createContext(null); +const DEFAULT_ENGINE: EngineType = "sqlite"; + function getInitialLanguage(): string { - // 1. URL parameter const urlParams = new URLSearchParams(window.location.search); const urlLang = urlParams.get("lang"); if (urlLang && AVAILABLE_LANGUAGES.some(l => l.code === urlLang)) { return urlLang; } - // 2. localStorage const stored = localStorage.getItem("language"); if (stored && AVAILABLE_LANGUAGES.some(l => l.code === stored)) { return stored; } - // 3. Default return DEFAULT_LANGUAGE; } +function getInitialEngine(): EngineType { + const urlParams = new URLSearchParams(window.location.search); + const urlEngine = urlParams.get("engine"); + if (urlEngine === "postgresql" || urlEngine === "sqlite") { + return urlEngine; + } + const stored = localStorage.getItem("engine"); + if (stored === "postgresql" || stored === "sqlite") { + return stored; + } + return DEFAULT_ENGINE; +} + function updateUrlParam(key: string, value: string | null) { const url = new URL(window.location.href); if (value === null) { @@ -71,21 +90,34 @@ export function setUrlParam(key: string, value: string | null) { updateUrlParam(key, value); } +/** + * Returns the data directory path for a language + engine combination. + * SQLite data lives under /languages/{code}/ + * PostgreSQL data lives under /languages/{code}-pg/ + */ +function dataPath(langCode: string, engine: EngineType): string { + return engine === "postgresql" ? `/languages/${langCode}-pg` : `/languages/${langCode}`; +} + export const LanguageProvider: React.FC<{ children: React.ReactNode }> = ({ children }) => { const [lang, setLangState] = useState(getInitialLanguage); + const [engine, setEngineState] = useState(getInitialEngine); const [questions, setQuestions] = useState([]); - const [dbArrayBuffer, setDbArrayBuffer] = useState(null); + const [dbData, setDbData] = useState(null); const [defaultQuery, setDefaultQuery] = useState("SELECT * FROM Student;"); - const loadLanguageData = useCallback(async (langCode: string) => { + const loadLanguageData = useCallback(async (langCode: string, engineType: EngineType) => { + const base = dataPath(langCode, engineType); + const dataFile = engineType === "postgresql" ? "data.sql" : "data.sqlite3"; + try { const [qpResponse, dbResponse] = await Promise.all([ - fetch(`/languages/${langCode}/questionpool.json`), - fetch(`/languages/${langCode}/data.sqlite3`), + fetch(`${base}/questionpool.json`), + fetch(`${base}/${dataFile}`), ]); if (!qpResponse.ok || !dbResponse.ok) { - console.error(`Failed to load language data for ${langCode}`); + console.error(`Failed to load language data for ${langCode} (${engineType})`); return; } @@ -93,18 +125,23 @@ export const LanguageProvider: React.FC<{ children: React.ReactNode }> = ({ chil setQuestions(qpData.questions); setDefaultQuery(qpData.defaultQuery || "SELECT * FROM Student;"); - const dbData = await dbResponse.arrayBuffer(); - setDbArrayBuffer(dbData); + if (engineType === "postgresql") { + const sqlText = await dbResponse.text(); + setDbData(sqlText); + } else { + const arrayBuf = await dbResponse.arrayBuffer(); + setDbData(arrayBuf); + } } catch (e) { console.error("Failed to load language data:", e); } }, []); useEffect(() => { - loadLanguageData(lang); - // Always reflect language in URL (even default) + loadLanguageData(lang, engine); updateUrlParam("lang", lang); - }, [lang, loadLanguageData]); + updateUrlParam("engine", engine === DEFAULT_ENGINE ? null : engine); + }, [lang, engine, loadLanguageData]); const setLang = useCallback((newLang: string) => { if (!AVAILABLE_LANGUAGES.some(l => l.code === newLang)) return; @@ -113,8 +150,15 @@ export const LanguageProvider: React.FC<{ children: React.ReactNode }> = ({ chil setLangState(newLang); }, []); + const setEngine = useCallback((newEngine: EngineType) => { + localStorage.setItem("engine", newEngine); + updateUrlParam("engine", newEngine === DEFAULT_ENGINE ? null : newEngine); + setEngineState(newEngine); + }, []); + const t = useCallback((key: string, params?: Record): string => { - const strings = uiStrings[lang] || uiStrings[DEFAULT_LANGUAGE] || {}; + const baseLang = lang.replace(/-pg$/, ""); + const strings = uiStrings[lang] || uiStrings[baseLang] || uiStrings[DEFAULT_LANGUAGE] || {}; let value = strings[key] || key; if (params) { for (const [k, v] of Object.entries(params)) { @@ -125,7 +169,7 @@ export const LanguageProvider: React.FC<{ children: React.ReactNode }> = ({ chil }, [lang]); return ( - + {children} ); diff --git a/src/i18n/languages.ts b/src/i18n/languages.ts index 70f3bd7..2ac64ce 100644 --- a/src/i18n/languages.ts +++ b/src/i18n/languages.ts @@ -2,6 +2,8 @@ * Registry of available languages. * Add new entries here when adding a new language pack. */ +export type EngineType = "sqlite" | "postgresql"; + export interface LanguageInfo { code: string; displayName: string; @@ -13,4 +15,9 @@ export const AVAILABLE_LANGUAGES: LanguageInfo[] = [ { code: "de", displayName: "Deutsch" }, ]; +export const AVAILABLE_ENGINES: { type: EngineType; displayName: string }[] = [ + { type: "sqlite", displayName: "SQLite" }, + { type: "postgresql", displayName: "PostgreSQL" }, +]; + export const DEFAULT_LANGUAGE = "sv"; diff --git a/src/mergeUtils.ts b/src/mergeUtils.ts index 78eaa99..650cba4 100644 --- a/src/mergeUtils.ts +++ b/src/mergeUtils.ts @@ -7,6 +7,7 @@ export interface ParsedSaveData { correctQuestionIds: number[]; views: View[]; language: string; + engine: string; } export interface MergeConflict { @@ -41,6 +42,11 @@ export function parseImportFile(data: string): ParsedSaveData { const commentLangMatch = data.match(/^-- Language: (\w+)$/m); const language = structuredLangMatch ? structuredLangMatch[1] : (commentLangMatch ? commentLangMatch[1] : "sv"); + const structuredEngineMatch = data.match( + /\/\*\s--- BEGIN Save Engine --- \*\/\n--\s(\w+)\n\/\*\s--- END Save Engine --- \*\// + ); + const engine = structuredEngineMatch ? structuredEngineMatch[1] : "sqlite"; + const rawQueriesMatch = data.match( /\/\*\s--- BEGIN Raw Queries --- \*\/\n\/\*\n([\s\S]*?)\n\*\/\n\/\*\s--- END Raw Queries --- \*\// ); @@ -78,11 +84,11 @@ export function parseImportFile(data: string): ParsedSaveData { } } - return { rawQueries, correctQueries, writtenQuestionIds, correctQuestionIds, views, language }; + return { rawQueries, correctQueries, writtenQuestionIds, correctQuestionIds, views, language, engine }; } -export function getLocalData(langPrefix: string = "sv"): ParsedSaveData { - const pfx = `${langPrefix}:`; +export function getLocalData(lang: string = "sv", engine: string = "sqlite"): ParsedSaveData { + const pfx = `${lang}:${engine}:`; const writtenQuestionIds: number[] = JSON.parse( localStorage.getItem(`${pfx}writtenQuestions`) || "[]" ); @@ -104,7 +110,7 @@ export function getLocalData(langPrefix: string = "sv"): ParsedSaveData { const views: View[] = JSON.parse(localStorage.getItem(`${pfx}views`) || "[]"); - return { rawQueries, correctQueries, writtenQuestionIds, correctQuestionIds, views, language: langPrefix }; + return { rawQueries, correctQueries, writtenQuestionIds, correctQuestionIds, views, language: lang, engine }; } export function detectConflicts( @@ -281,5 +287,5 @@ export function buildMergedData( new Set([...local.correctQuestionIds, ...imported.correctQuestionIds]) ).filter((id) => String(id) in correctQueries); - return { rawQueries, correctQueries, writtenQuestionIds, correctQuestionIds, views, language: local.language }; + return { rawQueries, correctQueries, writtenQuestionIds, correctQuestionIds, views, language: local.language, engine: local.engine }; } diff --git a/src/ra-engine/LICENSE.md b/src/ra-engine/LICENSE.md new file mode 100644 index 0000000..6f9c128 --- /dev/null +++ b/src/ra-engine/LICENSE.md @@ -0,0 +1,51 @@ +# Business Source License 1.1 + +**Parameters** + +- **Licensor:** E.SU. IT AB (Org.no 559484-0505) and Edwin Sundberg +- **Licensed Work:** ra-engine + The Licensed Work is (c) 2026 E.SU. IT AB and Edwin Sundberg. +- **Change Date:** 2035-03-20 +- **Change License:** GNU General Public License v3.0 or later + +**Terms** + +The Licensor hereby grants you the right to copy, modify, create derivative +works, redistribute, and make non-production use of the Licensed Work. The +Licensor may make an Additional Use Grant, above, permitting limited +production use. + +Effective on the Change Date, or the fourth anniversary of the first publicly +available distribution of a specific version of the Licensed Work under this +License, whichever comes first, the Licensor hereby grants you rights under +the terms of the Change License, and the rights granted in the paragraph +above terminate. + +If your use of the Licensed Work does not comply with the requirements +currently in effect as described in this License, you must purchase a +commercial license from the Licensor, its affiliated entities, or authorized +resellers, or you must refrain from using the Licensed Work. + +All copies of the original and modified Licensed Work, and derivative works +of the Licensed Work, are subject to this License. This License applies +separately for each version of the Licensed Work and the Change Date may vary +for each version of the Licensed Work released by Licensor. + +You must conspicuously display this License on each original or modified copy +of the Licensed Work. If you receive the Licensed Work in original or +modified form from a third party, the terms and conditions set forth in this +License apply to your use of that work. + +Any use of the Licensed Work in violation of this License will automatically +terminate your rights under this License for the current and all other +versions of the Licensed Work. + +This License does not grant you any right in any trademark or logo of +Licensor or its affiliates (provided that you may use a trademark or logo of +Licensor as expressly required by this License). + +TO THE EXTENT PERMITTED BY APPLICABLE LAW, THE LICENSED WORK IS PROVIDED ON +AN "AS IS" BASIS. LICENSOR HEREBY DISCLAIMS ALL WARRANTIES AND CONDITIONS, +EXPRESS OR IMPLIED, INCLUDING (WITHOUT LIMITATION) WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, AND +TITLE. diff --git a/src/ra-engine/RAPreview.tsx b/src/ra-engine/RAPreview.tsx new file mode 100644 index 0000000..e648cb0 --- /dev/null +++ b/src/ra-engine/RAPreview.tsx @@ -0,0 +1,238 @@ +/* +Relational Algebra engine for sql-validator +Copyright (C) 2026 E.SU. IT AB (Org.no 559484-0505) and Edwin Sundberg + +Licensed under the Business Source License 1.1 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License in the LICENSE.md file in this repository. +*/ + +import { useMemo } from "react"; +import { + UNARY_SYMBOLS, BINARY_SYMBOLS, + LOGIC_KEYWORDS, UNARY_KEYWORD_SYMBOLS, BINARY_KEYWORD_SYMBOLS, + IDENT_START, IDENT_CHAR, + esc, skipWs, highlightSubContent, extractBracketContent, extractImplicitSubscript, +} from "./raShared"; + +/** + * Renders a relational algebra expression with proper formatting: + * - Keyword operators replaced with Unicode symbols + * - Bracket content rendered as subscripts using tags + * - Assignment arrows rendered as ← + * + * Two modes: + * - CSS classes (default): uses .ra-prev-* classes from App.css, supports dark: variants + * - Inline styles (forExport=true): hardcoded light colors for PNG export on white background + */ + +// Inline styles for export only (always light, white background) +const EXPORT_STYLES = { + op: "color: #7c3aed; font-weight: bold;", + logic: "color: #1d4ed8; font-weight: bold;", + str: "color: #047857;", + num: "color: #b45309;", + comment: "color: #6b7280; font-style: italic;", + assign: "color: #7c3aed; font-weight: bold;", + sub: "font-size: 0.9em; color: #1f2937;", + paren: "color: #9ca3af;", +}; + +type TagFn = (token: string, content: string) => string; +type SubFn = (content: string) => string; + +function cssTag(token: string, content: string): string { + return `${content}`; +} + +function cssSub(content: string): string { + return `${content}`; +} + +function makeExportTag(): TagFn { + return (token: string, content: string) => { + const style = EXPORT_STYLES[token as keyof typeof EXPORT_STYLES] || ""; + return style ? `${content}` : content; + }; +} + +function makeExportSub(): SubFn { + return (content: string) => `${content}`; +} + +function makeSubWrap(tag: TagFn) { + return (type: string, text: string) => tag(type, text); +} + +function renderSubscriptHtml(content: string, tag: TagFn, sub: SubFn): string { + return sub(highlightSubContent(content, makeSubWrap(tag))); +} + +/** Consume a subscript and return [newIndex, html] */ +function consumeSubscript(code: string, i: number, tag: TagFn, sub: SubFn): [number, string] { + const beforeWs = i; + const wsI = skipWs(code, i); + + const [bracketI, bracketContent] = extractBracketContent(code, i); + if (bracketContent !== null) { + return [bracketI, renderSubscriptHtml(bracketContent, tag, sub)]; + } + + const [implI, implContent] = extractImplicitSubscript(code, wsI, beforeWs); + if (implContent !== null) { + return [implI, renderSubscriptHtml(implContent, tag, sub)]; + } + + return [beforeWs, ""]; +} + +export function renderRAPreview(code: string, forExport = false): string { + const tag: TagFn = forExport ? makeExportTag() : cssTag; + const sub: SubFn = forExport ? makeExportSub() : cssSub; + const result: string[] = []; + let i = 0; + + while (i < code.length) { + if (code[i] === "-" && i + 1 < code.length && code[i + 1] === "-") { + let comment = ""; + while (i < code.length && code[i] !== "\n") { comment += code[i]; i++; } + result.push(tag("comment", esc(comment))); + continue; + } + + if (code[i] === "\n") { + result.push("
"); + i++; + continue; + } + + if (UNARY_SYMBOLS.has(code[i])) { + result.push(tag("op", esc(code[i]))); + i++; + const [newI, html] = consumeSubscript(code, i, tag, sub); + i = newI; + result.push(html); + continue; + } + + if (code[i] === "|") { + if (i + 2 < code.length && (code[i + 1] === "X" || code[i + 1] === "x") && code[i + 2] === "|") { + result.push(tag("op", "⋈")); + i += 3; + continue; + } + if (i + 3 < code.length && code[i + 1] === ">" && code[i + 2] === "<" && code[i + 3] === "|") { + result.push(tag("op", "⋈")); + i += 4; + continue; + } + } + + if (BINARY_SYMBOLS.has(code[i])) { + result.push(tag("op", esc(code[i]))); + i++; + if (i < code.length && (code[i] === "[" || code[i] === "{" || code[i] === "_")) { + const [newI, html] = consumeSubscript(code, i, tag, sub); + i = newI; + result.push(html); + } + continue; + } + + if (code[i] === "<" && i + 1 < code.length && code[i + 1] === "-") { + result.push(tag("assign", "←")); + i += 2; + continue; + } + + if (code[i] === "-" && i + 1 < code.length && code[i + 1] === ">") { + result.push(tag("op", "→")); + i += 2; + continue; + } + + if (code[i] === "'") { + let str = "'"; + i++; + while (i < code.length && code[i] !== "'") { str += code[i]; i++; } + if (i < code.length) { str += "'"; i++; } + result.push(tag("str", esc(str))); + continue; + } + + if (/\d/.test(code[i])) { + let num = ""; + while (i < code.length && /[\d.]/.test(code[i])) { num += code[i]; i++; } + result.push(tag("num", esc(num))); + continue; + } + + if (IDENT_START.test(code[i])) { + let ident = ""; + while (i < code.length && IDENT_CHAR.test(code[i])) { ident += code[i]; i++; } + const lower = ident.toLowerCase(); + if (UNARY_KEYWORD_SYMBOLS[lower]) { + result.push(tag("op", UNARY_KEYWORD_SYMBOLS[lower])); + const [newI, html] = consumeSubscript(code, i, tag, sub); + i = newI; + result.push(html); + } else if (BINARY_KEYWORD_SYMBOLS[lower]) { + result.push(tag("op", BINARY_KEYWORD_SYMBOLS[lower])); + const j = skipWs(code, i); + if (j < code.length && (code[j] === "[" || code[j] === "{" || code[j] === "_")) { + const [newI, html] = consumeSubscript(code, j, tag, sub); + i = newI; + result.push(html); + } + } else if (LOGIC_KEYWORDS.has(lower)) { + result.push(tag("logic", esc(ident))); + } else { + result.push(esc(ident)); + } + continue; + } + + if ("<>!=".includes(code[i])) { + let op = code[i]; i++; + if (i < code.length && (code[i] === "=" || code[i] === ">")) { op += code[i]; i++; } + result.push(tag("logic", esc(op))); + continue; + } + + if (code[i] === "(" || code[i] === ")") { + result.push(tag("paren", esc(code[i]))); + i++; + continue; + } + + result.push(esc(code[i])); + i++; + } + + return result.join(""); +} + +interface RAPreviewProps { + code: string; +} + +export default function RAPreview({ code }: RAPreviewProps) { + const html = useMemo(() => { + const trimmed = code.trim(); + if (!trimmed || trimmed.startsWith("--") && !trimmed.includes("\n")) { + return null; + } + return renderRAPreview(trimmed); + }, [code]); + + if (!html) return null; + + return ( +
+
+
+ ); +} diff --git a/src/ra-engine/RAReference.tsx b/src/ra-engine/RAReference.tsx new file mode 100644 index 0000000..908b540 --- /dev/null +++ b/src/ra-engine/RAReference.tsx @@ -0,0 +1,172 @@ +/* +Relational Algebra engine for sql-validator +Copyright (C) 2026 E.SU. IT AB (Org.no 559484-0505) and Edwin Sundberg + +Licensed under the Business Source License 1.1 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License in the LICENSE.md file in this repository. +*/ + +import { useState } from "react"; +import { Dialog, DialogContent } from "@/components/ui/dialog"; +import { X } from "lucide-react"; +import { useLanguage } from "../i18n/context"; + +const RAReference = () => { + const { t } = useLanguage(); + const [open, setOpen] = useState(false); + + return ( + <> + + + +
+

{t("raReference")}

+ +
+
+ {/* Unary Operators */} +
+

{t("raUnaryOps")}

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
{t("raColOp")}{t("raColSyntax")}{t("raColDesc")}
σ / sigmaσ[age > 20](R){t("raDescSelection")}
π / piπ[name, city](R){t("raDescProjection")}
ρ / rhoρ[old→new](R){t("raDescRename")}
γ / gammaγ[city; COUNT(id)](R){t("raDescGroup")}
τ / tauτ[name](R){t("raDescSort")}
δ / deltaδ(R){t("raDescDistinct")}
+
+ + {/* Binary Operators */} +
+

{t("raBinaryOps")}

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
{t("raColOp")}{t("raColSyntax")}{t("raColDesc")}
× / crossR × S{t("raDescCross")}
⋈ / natjoinR ⋈ S{t("raDescNatJoin")}
⋈ / joinR ⋈[R.id = S.id] S{t("raDescThetaJoin")}
∪ / unionR ∪ S{t("raDescUnion")}
∩ / intersectR ∩ S{t("raDescIntersect")}
− / minusR − S{t("raDescMinus")}
÷ / divideR ÷ S{t("raDescDivide")}
+
+ + {/* Notation */} +
+

{t("raNotation")}

+
+

σ[cond](R) {t("raNoteBrackets")}

+

σ{"{cond}"}(R) {t("raNoteCurly")}

+

σ{"_{cond}"}(R) {t("raNoteLaTeX")}

+

σ cond (R) {t("raNoteImplicit")}

+

π[cols] σ[cond] R {t("raNoteChain")}

+
+
+ + {/* Assignment */} +
+

{t("raAssignment")}

+
+

A <- σ[age > 20](Person)

+

B <- π[name](A)

+

{t("raNoteAssignment")}

+
+
+ + {/* Conditions */} +
+

{t("raConditions")}

+
+

age > 20 AND city = 'York'

+

age > 20 OR age < 10

+

NOT active = 1

+

{t("raNoteComparison")}

+
+
+
+ + + + ); +}; + +export default RAReference; diff --git a/src/ra-engine/raHighlight.test.ts b/src/ra-engine/raHighlight.test.ts new file mode 100644 index 0000000..b8e0c5a --- /dev/null +++ b/src/ra-engine/raHighlight.test.ts @@ -0,0 +1,174 @@ +import { describe, it, expect } from "vitest"; +import { highlightRA } from "./raHighlight"; +import { renderRAPreview } from "./RAPreview"; + +/** Strip HTML tags and decode entities to recover visible text */ +function visibleText(html: string): string { + return html + .replace(/<[^>]+>/g, "") + .replace(/</g, "<").replace(/>/g, ">") + .replace(/&/g, "&").replace(/"/g, '"'); +} + +// ─── Character count invariant ────────────────────────────────────────────── +// The editor overlay MUST produce visible text identical to the input. +// These tests are the most important — if any fail, the editor is broken. + +describe("RA highlighter character preservation", () => { + const inputs = [ + "Person", + "σ[age > 20](Person)", + "π[name, city](Person)", + "ρ[name→fullName](Person)", + "σ_{age > 20}(Person)", + "σ{age > 20}(Person)", + "PI [name, city](Person)", + "PI [name, person_id, address, postal_code] SIGMA [city='York'] Person", + "PI name, person_id SIGMA city='York' Person", + "PI _name, person_id Person", + "A <- σ[age > 20](Person)\nπ[name](A)", + "-- comment\nPerson", + "Person ⋈ Student", + "Person |X| Student", + "Person |><| Student", + "ρ[name->fullName](Person)", + "σ[a <> 1](T)", + "σ[a != 1](T)", + "σ[a >= 1](T)", + "σ[a <= 1](T)", + "γ[city; COUNT(id) AS cnt](Person)", + "Person ⋈[Person.id = Student.id] Student", + "σ[name = 'Alice'](Person)", + "PI [name SIGMA [age > 20] Person", // unclosed bracket + "σ age > 20 (Person)", // implicit subscript + "", + ]; + + for (const input of inputs) { + it(`preserves: ${JSON.stringify(input).slice(0, 60)}`, () => { + if (input === "") return; // empty input = empty output + const html = highlightRA(input); + expect(visibleText(html)).toBe(input); + }); + } +}); + +// ─── Token coloring ───────────────────────────────────────────────────────── + +describe("RA highlighter coloring", () => { + it("colors σ operator", () => { + expect(highlightRA("σ[age > 20](Person)")).toContain("color: #7c3aed"); + }); + + it("colors keyword operators", () => { + const html = highlightRA("sigma[age > 20](Person)"); + expect(html).toContain("color: #7c3aed"); + expect(html).toContain("sigma"); + }); + + it("colors binary keyword operators", () => { + expect(highlightRA("A cross B")).toContain("color: #7c3aed"); + }); + + it("renders brackets faintly", () => { + expect(highlightRA("σ[age > 20](Person)")).toContain("opacity: 0.5"); + }); + + it("colors string literals green", () => { + const html = highlightRA("σ[name = 'Alice'](Person)"); + expect(html).toContain("color: #059669"); + expect(html).toContain("Alice"); + }); + + it("colors numbers amber", () => { + expect(highlightRA("σ[age > 20](Person)")).toContain("color: #d97706"); + }); + + it("colors AND/OR/NOT blue", () => { + const html = highlightRA("σ[a > 1 and b < 2](T)"); + expect(html).toContain("color: #2563eb"); + }); + + it("colors comments gray italic", () => { + const html = highlightRA("-- this is a comment\nPerson"); + expect(html).toContain("font-style: italic"); + }); + + it("colors <- assignment", () => { + const html = highlightRA("A <- Person"); + expect(html).toContain("color: #7c3aed"); + expect(html).toContain("<-"); + }); + + it("colors -> rename arrow", () => { + const html = highlightRA("ρ[name->fullName](Person)"); + expect(html).toContain("->"); + }); + + it("colors _ as bracket when before {", () => { + const html = highlightRA("σ_{age > 20}(Person)"); + expect(html).toContain("opacity: 0.5"); + }); + + it("does not color _ when part of identifier", () => { + const html = highlightRA("PI _name (Person)"); + // _name should not have bracket styling + expect(html).not.toMatch(/opacity.*_n/); + }); + + it("preserves newlines", () => { + expect(highlightRA("A <- Person\nA")).toContain("\n"); + }); +}); + +// ─── RAPreview rendering ──────────────────────────────────────────────────── + +describe("RA preview", () => { + it("should render paren-free implicit projection without eating the table name", () => { + const html = renderRAPreview("PI person_id, address Person"); + expect(html).toMatch(/]*>.*person_id.*address.*<\/sub>/); + // Person must not be in a subscript + expect(html).not.toMatch(/]*>.*Person.*<\/sub>/s); + }); + + it("should render paren-free implicit projection with Unicode symbol", () => { + const html = renderRAPreview("π person_id, address Person"); + expect(html).toMatch(/]*>.*person_id.*<\/sub>/); + }); + + it("should still render parenthesised implicit subscript correctly", () => { + const html = renderRAPreview("π person_id, address (Person)"); + expect(html).toMatch(/]*>.*person_id.*address.*<\/sub>/); + }); + + it("should render paren-free σ condition Table correctly", () => { + const html = renderRAPreview("sigma age > 20 Person"); + expect(html).toContain("Person"); + expect(html).toMatch(/]*>.*age.*<\/sub>/); + }); + + it("should not swallow content after unclosed bracket", () => { + const html = renderRAPreview("PI [name, person_id SIGMA city='York' Person"); + const opMatches = html.match(/ra-prev-op/g); + expect(opMatches!.length).toBeGreaterThanOrEqual(2); + }); + + it("should render chained paren-free operators correctly", () => { + const html = renderRAPreview("PI name, person_id, address, postal_code SIGMA city='York' Person"); + const opMatches = html.match(/ra-prev-op/g); + expect(opMatches!.length).toBeGreaterThanOrEqual(2); + expect(html).toMatch(/]*>.*name.*postal_code.*<\/sub>/); + }); + + it("should render chained Unicode operators correctly", () => { + const html = renderRAPreview("π name, city σ age > 20 Person"); + const opMatches = html.match(/ra-prev-op/g); + expect(opMatches!.length).toBeGreaterThanOrEqual(2); + }); + + it("should not treat underscore-prefixed column names as LaTeX subscript", () => { + const html = renderRAPreview("PI _name, person_id Person"); + expect(html).toMatch(/]*>.*_name.*person_id.*<\/sub>/); + expect(html).not.toMatch(/opacity/); + }); +}); diff --git a/src/ra-engine/raHighlight.ts b/src/ra-engine/raHighlight.ts new file mode 100644 index 0000000..d448000 --- /dev/null +++ b/src/ra-engine/raHighlight.ts @@ -0,0 +1,196 @@ +/* +Relational Algebra engine for sql-validator +Copyright (C) 2026 E.SU. IT AB (Org.no 559484-0505) and Edwin Sundberg + +Licensed under the Business Source License 1.1 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License in the LICENSE.md file in this repository. +*/ + +/** + * Custom syntax highlighter for relational algebra expressions. + * + * INVARIANT: The visible text of the output must be EXACTLY the input string. + * Every input character must appear exactly once in the output. We only wrap + * characters in tags for coloring — never skip, reorder, or add chars. + */ + +import { + UNARY_SYMBOLS, BINARY_SYMBOLS, UNARY_KEYWORDS, BINARY_KEYWORDS, + LOGIC_KEYWORDS, IDENT_START, IDENT_CHAR, esc, +} from "./raShared"; + +// Only color/opacity — never font-weight/size which affect character width +const LIGHT = { + op: "color: #7c3aed;", + logic: "color: #2563eb;", + str: "color: #059669;", + num: "color: #d97706;", + comment: "color: #9ca3af; font-style: italic;", + bracket: "color: #a1a1aa; opacity: 0.5;", +}; + +const DARK = { + op: "color: #a78bfa;", + logic: "color: #60a5fa;", + str: "color: #34d399;", + num: "color: #fbbf24;", + comment: "color: #6b7280; font-style: italic;", + bracket: "color: #6b7280; opacity: 0.5;", +}; + +/** + * Wrap a raw substring in a styled span, escaping HTML entities. + * The visible text length is always === raw.length. + */ +function span(style: string, raw: string): string { + return `${esc(raw)}`; +} + +/** + * Highlight RA code for the editor overlay. + * Simple token-coloring only — no rewriting, no subscript rendering. + * Character count is guaranteed correct by construction. + */ +export function highlightRA(code: string, dark = false): string { + const S = dark ? DARK : LIGHT; + const result: string[] = []; + let i = 0; + + while (i < code.length) { + // ── Comments: -- until newline ── + if (code[i] === "-" && i + 1 < code.length && code[i + 1] === "-") { + let end = i; + while (end < code.length && code[end] !== "\n") end++; + result.push(span(S.comment, code.slice(i, end))); + i = end; + continue; + } + + // ── Newlines ── + if (code[i] === "\n") { + result.push("\n"); + i++; + continue; + } + + // ── Unicode unary operators (σ, π, ρ, γ, τ, δ) ── + if (UNARY_SYMBOLS.has(code[i])) { + result.push(span(S.op, code[i])); + i++; + continue; + } + + // ── Unicode binary operators (×, ⋈, ∪, ∩, etc.) ── + if (BINARY_SYMBOLS.has(code[i])) { + result.push(span(S.op, code[i])); + i++; + continue; + } + + // ── |X| or |><| natural join ── + if (code[i] === "|") { + if (i + 2 < code.length && (code[i + 1] === "X" || code[i + 1] === "x") && code[i + 2] === "|") { + result.push(span(S.op, code.slice(i, i + 3))); + i += 3; + continue; + } + if (i + 3 < code.length && code[i + 1] === ">" && code[i + 2] === "<" && code[i + 3] === "|") { + result.push(span(S.op, code.slice(i, i + 4))); + i += 4; + continue; + } + } + + // ── <- assignment ── + if (code[i] === "<" && i + 1 < code.length && code[i + 1] === "-") { + result.push(span(S.op, "<-")); + i += 2; + continue; + } + + // ── -> rename arrow ── + if (code[i] === "-" && i + 1 < code.length && code[i + 1] === ">") { + result.push(span(S.op, "->")); + i += 2; + continue; + } + + // ── → Unicode rename arrow ── + if (code[i] === "→") { + result.push(span(S.op, "→")); + i++; + continue; + } + + // ── String literals ── + if (code[i] === "'") { + let end = i + 1; + while (end < code.length && code[end] !== "'") end++; + if (end < code.length) end++; // include closing quote + result.push(span(S.str, code.slice(i, end))); + i = end; + continue; + } + + // ── Numbers ── + if (/\d/.test(code[i])) { + let end = i; + while (end < code.length && /[\d.]/.test(code[end])) end++; + result.push(span(S.num, code.slice(i, end))); + i = end; + continue; + } + + // ── Brackets — render faintly ── + if (code[i] === "[" || code[i] === "]" || code[i] === "{" || code[i] === "}") { + result.push(span(S.bracket, code[i])); + i++; + continue; + } + + // ── Underscore before bracket — render as faint bracket prefix ── + if (code[i] === "_") { + // Check if this is a LaTeX-style _{} or _[] prefix + let j = i + 1; + while (j < code.length && code[j] === " ") j++; + if (j < code.length && (code[j] === "{" || code[j] === "[")) { + result.push(span(S.bracket, "_")); + i++; + continue; + } + } + + // ── Identifiers and keywords ── + if (IDENT_START.test(code[i])) { + let end = i; + while (end < code.length && IDENT_CHAR.test(code[end])) end++; + const word = code.slice(i, end); + const lower = word.toLowerCase(); + if (UNARY_KEYWORDS.has(lower) || BINARY_KEYWORDS.has(lower)) { + result.push(span(S.op, word)); + } else if (LOGIC_KEYWORDS.has(lower)) { + result.push(span(S.logic, word)); + } else { + result.push(esc(word)); + } + i = end; + continue; + } + + // ── Comparison operators ── + if ("<>!=".includes(code[i])) { + let end = i + 1; + if (end < code.length && (code[end] === "=" || code[end] === ">")) end++; + result.push(span(S.logic, code.slice(i, end))); + i = end; + continue; + } + + // ── Everything else (spaces, parens, etc.) — pass through ── + result.push(esc(code[i])); + i++; + } + + return result.join(""); +} diff --git a/src/ra-engine/raLanguage.ts b/src/ra-engine/raLanguage.ts new file mode 100644 index 0000000..001ca98 --- /dev/null +++ b/src/ra-engine/raLanguage.ts @@ -0,0 +1,146 @@ +/** + * CodeMirror StreamLanguage definition for relational algebra syntax. + * Maps tokens to CodeMirror tag names for theme-based highlighting. + */ +import { StreamLanguage, type StreamParser } from "@codemirror/language"; +import { + UNARY_SYMBOLS, BINARY_SYMBOLS, UNARY_KEYWORDS, BINARY_KEYWORDS, + LOGIC_KEYWORDS, IDENT_START, IDENT_CHAR, +} from "./raShared"; + +interface RAState { + inComment: boolean; +} + +const raParser: StreamParser = { + startState(): RAState { + return { inComment: false }; + }, + + token(stream, _state): string | null { + // Comments: -- until end of line + if (stream.match("--")) { + stream.skipToEnd(); + return "comment"; + } + + // Skip whitespace + if (stream.eatSpace()) return null; + + const ch = stream.peek()!; + + // Unary operator symbols (σ, π, ρ, γ, τ, δ) + if (UNARY_SYMBOLS.has(ch)) { + stream.next(); + return "keyword"; + } + + // Binary operator symbols (×, ⋈, ∪, ∩, etc.) + if (BINARY_SYMBOLS.has(ch)) { + stream.next(); + return "keyword"; + } + + // → rename arrow + if (ch === "→") { + stream.next(); + return "keyword"; + } + + // |X| or |><| natural join + if (ch === "|") { + if (stream.match(/^\|[Xx]\|/) || stream.match(/^\|><\|/)) { + return "keyword"; + } + stream.next(); + return null; + } + + // <- assignment + if (ch === "<" && stream.match("<-")) { + return "keyword"; + } + + // -> rename arrow + if (ch === "-" && stream.match("->")) { + return "keyword"; + } + + // String literals + if (ch === "'") { + stream.next(); + while (!stream.eol()) { + if (stream.next() === "'") break; + } + return "string"; + } + + // Numbers + if (/\d/.test(ch)) { + stream.match(/^\d[\d.]*/); + return "number"; + } + + // Brackets — styled as punctuation + if ("[]{}".includes(ch)) { + stream.next(); + return "bracket"; + } + + // Underscore before bracket (LaTeX-style subscript prefix) + if (ch === "_") { + const pos = stream.pos; + stream.next(); + // Peek ahead past spaces + const rest = stream.string.slice(stream.pos).trimStart(); + if (rest.length > 0 && (rest[0] === "{" || rest[0] === "[")) { + return "bracket"; + } + // Not a subscript prefix — fall through, reset nothing (already consumed) + // Check if it's part of an identifier + if (stream.pos < stream.string.length && IDENT_CHAR.test(stream.string[stream.pos])) { + stream.backUp(1); + stream.pos = pos; + // Let the identifier handler below pick it up + } else { + return null; + } + } + + // Identifiers and keywords + if (IDENT_START.test(ch)) { + const wordStart = stream.pos; + while (!stream.eol() && IDENT_CHAR.test(stream.string[stream.pos])) { + stream.pos++; + } + const word = stream.string.slice(wordStart, stream.pos); + if (word.length === 0) { + stream.next(); + return null; + } + const lower = word.toLowerCase(); + if (UNARY_KEYWORDS.has(lower) || BINARY_KEYWORDS.has(lower)) { + return "keyword"; + } + if (LOGIC_KEYWORDS.has(lower)) { + return "operator"; + } + return "variableName"; + } + + // Comparison operators + if ("<>!=".includes(ch)) { + stream.next(); + if (!stream.eol() && "=>".includes(stream.peek()!)) { + stream.next(); + } + return "operator"; + } + + // Everything else + stream.next(); + return null; + }, +}; + +export const raStreamLanguage = StreamLanguage.define(raParser); diff --git a/src/ra-engine/raShared.ts b/src/ra-engine/raShared.ts new file mode 100644 index 0000000..925c65f --- /dev/null +++ b/src/ra-engine/raShared.ts @@ -0,0 +1,242 @@ +/* +Relational Algebra engine for sql-validator +Copyright (C) 2026 E.SU. IT AB (Org.no 559484-0505) and Edwin Sundberg + +Licensed under the Business Source License 1.1 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License in the LICENSE.md file in this repository. +*/ + +/** + * Shared constants and utilities for RA highlighting and preview rendering. + */ + +// RA operator symbol sets +export const UNARY_SYMBOLS = new Set(["σ", "π", "ρ", "γ", "τ", "δ"]); +export const BINARY_SYMBOLS = new Set(["×", "⋈", "∪", "∩", "−", "÷", "⟕", "⟖", "⟗", "⋉", "⋊", "▷", "←"]); + +// RA keyword sets (lowercase) +export const UNARY_KEYWORDS = new Set([ + "sigma", "select", "pi", "project", "rho", "rename", + "gamma", "tau", "sort", "delta", "distinct", +]); +export const BINARY_KEYWORDS = new Set([ + "cross", "natjoin", "join", "union", "intersect", "minus", + "divide", "leftjoin", "rightjoin", "fulljoin", + "leftsemijoin", "rightsemijoin", "antijoin", +]); +export const LOGIC_KEYWORDS = new Set(["and", "or", "not"]); +export const MODIFIER_KEYWORDS = new Set(["asc", "desc", "as"]); +export const AGGREGATE_KEYWORDS = new Set(["count", "sum", "avg", "min", "max"]); + +// Keyword to Unicode symbol mappings (used by RAPreview for pretty-printing) +export const UNARY_KEYWORD_SYMBOLS: Record = { + sigma: "σ", select: "σ", + pi: "π", project: "π", + rho: "ρ", rename: "ρ", + gamma: "γ", + tau: "τ", sort: "τ", + delta: "δ", distinct: "δ", +}; +export const BINARY_KEYWORD_SYMBOLS: Record = { + cross: "×", + natjoin: "⋈", join: "⋈", + union: "∪", + intersect: "∩", + minus: "−", + divide: "÷", + leftjoin: "⟕", + rightjoin: "⟖", + fulljoin: "⟗", + leftsemijoin: "⋉", + rightsemijoin: "⋊", + antijoin: "▷", +}; + +/** Escape HTML special characters */ +export function esc(s: string): string { + return s + .replace(/&/g, "&") + .replace(//g, ">") + .replace(/"/g, """); +} + +/** Skip whitespace (spaces only) */ +export function skipWs(code: string, i: number): number { + while (i < code.length && code[i] === " ") i++; + return i; +} + +/** Regex patterns for identifier characters */ +export const IDENT_START = /[a-zA-Z_\u00C0-\u024F]/; +export const IDENT_CHAR = /[a-zA-Z0-9_\u00C0-\u024F]/; + +/** + * A wrapper function that produces a styled HTML span. + * Takes a semantic token type and the escaped text. + */ +export type StyleWrapper = (type: "op" | "logic" | "str" | "num" | "ident", text: string) => string; + +/** + * Tokenize and highlight subscript content (conditions, column lists, etc.) + * using the provided style wrapper for output. + */ +export function highlightSubContent(content: string, wrap: StyleWrapper): string { + const parts: string[] = []; + let i = 0; + + while (i < content.length) { + // String literals + if (content[i] === "'") { + let str = "'"; + i++; + while (i < content.length && content[i] !== "'") { str += content[i]; i++; } + if (i < content.length) { str += "'"; i++; } + parts.push(wrap("str", esc(str))); + continue; + } + // Numbers + if (/\d/.test(content[i])) { + let num = ""; + while (i < content.length && /[\d.]/.test(content[i])) { num += content[i]; i++; } + parts.push(wrap("num", esc(num))); + continue; + } + // Keywords and identifiers + if (IDENT_START.test(content[i])) { + let ident = ""; + while (i < content.length && IDENT_CHAR.test(content[i])) { ident += content[i]; i++; } + const lower = ident.toLowerCase(); + if (LOGIC_KEYWORDS.has(lower) || MODIFIER_KEYWORDS.has(lower)) { + parts.push(wrap("logic", esc(ident))); + } else if (AGGREGATE_KEYWORDS.has(lower)) { + parts.push(wrap("op", esc(ident))); + } else { + parts.push(esc(ident)); + } + continue; + } + // Arrow → or -> + if (content[i] === "→") { + parts.push(wrap("op", "→")); + i++; + continue; + } + if (content[i] === "-" && i + 1 < content.length && content[i + 1] === ">") { + parts.push(wrap("op", esc("->"))); + i += 2; + continue; + } + // Comparison ops + if ("<>!=".includes(content[i])) { + let op = content[i]; i++; + if (i < content.length && (content[i] === "=" || content[i] === ">")) { op += content[i]; i++; } + parts.push(wrap("logic", esc(op))); + continue; + } + // Everything else + parts.push(esc(content[i])); + i++; + } + + return parts.join(""); +} + +/** + * Extract bracket content from code starting at position i. + * Handles [..], {..}, and _{..} patterns. + * Returns [newIndex, extractedContent] or [originalIndex, null] if no bracket found. + */ +export function extractBracketContent(code: string, startI: number): [number, string | null] { + let i = skipWs(code, startI); + if (i >= code.length) return [startI, null]; + + // Handle _{ or _[ prefix — only if followed by a bracket + if (code[i] === "_") { + const afterUnderscore = skipWs(code, i + 1); + if (afterUnderscore < code.length && (code[afterUnderscore] === "{" || code[afterUnderscore] === "[")) { + i = afterUnderscore; + } + } + + if (code[i] === "[" || code[i] === "{") { + i++; // past opening bracket + let depth = 1; + let content = ""; + while (i < code.length && depth > 0) { + if (code[i] === "[" || code[i] === "{") depth++; + if (code[i] === "]" || code[i] === "}") depth--; + if (depth > 0) content += code[i]; + i++; + } + // Only treat as bracket content if the bracket was actually closed + if (depth === 0) { + return [i, content]; + } + return [startI, null]; + } + + return [startI, null]; +} + +/** All keywords that are RA operators (unary + binary) */ +const RA_OPERATOR_KEYWORDS = new Set([...UNARY_KEYWORDS, ...BINARY_KEYWORDS]); + +/** + * Extract implicit subscript content (tokens until '(' or newline or another RA operator). + * When no '(' or operator follows (paren-free syntax like `π cols Table`), the last + * space-separated token is the operand, not part of the subscript. + * Returns [newIndex, extractedContent] or [originalIndex, null] if nothing found. + */ +export function extractImplicitSubscript(code: string, startI: number, beforeWs: number): [number, string | null] { + let i = startI; + if (code[i] === "(" || i <= beforeWs) return [startI, null]; + + let content = ""; + let hitBoundary = false; // true if we stopped at '(' or an RA operator + while (i < code.length && code[i] !== "\n") { + if (code[i] === "(") { hitBoundary = true; break; } + + // Stop if we hit a unary/binary Unicode symbol (next operator) + if (UNARY_SYMBOLS.has(code[i]) || BINARY_SYMBOLS.has(code[i])) { hitBoundary = true; break; } + + // Stop if we hit an RA operator keyword (e.g., SIGMA, PI, cross, natjoin) + if (IDENT_START.test(code[i])) { + let word = ""; + let j = i; + while (j < code.length && IDENT_CHAR.test(code[j])) { word += code[j]; j++; } + if (RA_OPERATOR_KEYWORDS.has(word.toLowerCase())) { hitBoundary = true; break; } + content += word; + i = j; + continue; + } + + content += code[i]; + i++; + } + const trimmed = content.trimEnd(); + const trimDiff = content.length - trimmed.length; + if (trimDiff > 0) i -= trimDiff; + + if (trimmed.length > 0) { + // If we stopped at a clear boundary ('(' or another operator), the entire + // scanned content is the subscript. + if (hitBoundary) { + return [i, trimmed]; + } + // Otherwise we hit end-of-line / end-of-input — the last token is the + // operand (table name), not part of the subscript. + const lastSpace = trimmed.lastIndexOf(" "); + if (lastSpace > 0) { + const sub = trimmed.slice(0, lastSpace).trimEnd(); + if (sub.length > 0) { + i = startI + sub.length; + return [i, sub]; + } + } + // Single token with no parens — it's the operand, not a subscript + return [startI, null]; + } + return [startI, null]; +} diff --git a/src/ra-engine/relationalAlgebra.test.ts b/src/ra-engine/relationalAlgebra.test.ts new file mode 100644 index 0000000..f764c7c --- /dev/null +++ b/src/ra-engine/relationalAlgebra.test.ts @@ -0,0 +1,1426 @@ +import { describe, it, expect, beforeAll, afterAll } from "vitest"; +import initSqlJs, { type Database } from "sql.js"; +import { raToSQL, RAError } from "./relationalAlgebra"; +import { SqliteEngine } from "../database/sqliteEngine"; + +// ─── Helper ───────────────────────────────────────────────────────────────── + +/** Normalize whitespace for comparison */ +function norm(s: string): string { + return s.replace(/\s+/g, " ").trim(); +} + +// ─── Basic table references ───────────────────────────────────────────────── + +describe("table references", () => { + it("should return a bare table name", async () => { + expect(await raToSQL("Person")).toBe("Person"); + }); + + it("should handle parenthesised table name", async () => { + expect(await raToSQL("(Person)")).toBe("Person"); + }); + + it("should handle trailing semicolon", async () => { + expect(await raToSQL("Person;")).toBe("Person"); + }); +}); + +// ─── Selection (σ) ────────────────────────────────────────────────────────── + +describe("selection (σ)", () => { + it("should transpile σ with Unicode symbol", async () => { + expect(norm(await raToSQL("σ[age > 20](Person)"))).toBe( + norm("SELECT * FROM (Person) WHERE age > 20") + ); + }); + + it("should transpile sigma keyword", async () => { + expect(norm(await raToSQL("sigma[age > 20](Person)"))).toBe( + norm("SELECT * FROM (Person) WHERE age > 20") + ); + }); + + it("should transpile select keyword", async () => { + expect(norm(await raToSQL("select[age > 20](Person)"))).toBe( + norm("SELECT * FROM (Person) WHERE age > 20") + ); + }); + + it("should handle string comparison", async () => { + expect(norm(await raToSQL("σ[name = 'Alice'](Person)"))).toBe( + norm("SELECT * FROM (Person) WHERE name = 'Alice'") + ); + }); + + it("should handle compound conditions with AND/OR", async () => { + const sql = await raToSQL("σ[age > 20 and name = 'Alice'](Person)"); + expect(norm(sql)).toBe( + norm("SELECT * FROM (Person) WHERE (age > 20 AND name = 'Alice')") + ); + }); + + it("should handle NOT condition", async () => { + const sql = await raToSQL("σ[not age > 20](Person)"); + expect(norm(sql)).toBe( + norm("SELECT * FROM (Person) WHERE NOT (age > 20)") + ); + }); + + it("should handle table.column references in conditions", async () => { + const sql = await raToSQL("σ[Person.age > 20](Person)"); + expect(norm(sql)).toBe( + norm("SELECT * FROM (Person) WHERE Person.age > 20") + ); + }); + + it("should handle nested OR and AND", async () => { + const sql = await raToSQL("σ[age > 20 or (name = 'Alice' and city = 'Stockholm')](Person)"); + expect(norm(sql)).toContain("OR"); + expect(norm(sql)).toContain("AND"); + }); + + it("should handle all comparison operators", async () => { + expect(norm(await raToSQL("σ[a = 1](T)"))).toContain("= 1"); + expect(norm(await raToSQL("σ[a <> 1](T)"))).toContain("<> 1"); + expect(norm(await raToSQL("σ[a != 1](T)"))).toContain("<> 1"); + expect(norm(await raToSQL("σ[a < 1](T)"))).toContain("< 1"); + expect(norm(await raToSQL("σ[a > 1](T)"))).toContain("> 1"); + expect(norm(await raToSQL("σ[a <= 1](T)"))).toContain("<= 1"); + expect(norm(await raToSQL("σ[a >= 1](T)"))).toContain(">= 1"); + }); + + it("should handle function calls in conditions", async () => { + const sql = await raToSQL("σ[YEAR(startDate) = 2024](CourseInstance)"); + expect(norm(sql)).toBe( + norm("SELECT * FROM (CourseInstance) WHERE YEAR(startDate) = 2024") + ); + }); +}); + +// ─── Projection (π) ───────────────────────────────────────────────────────── + +describe("projection (π)", () => { + it("should transpile π with Unicode", async () => { + expect(norm(await raToSQL("π[name, age](Person)"))).toBe( + norm("SELECT DISTINCT name, age FROM (Person)") + ); + }); + + it("should transpile pi keyword", async () => { + expect(norm(await raToSQL("pi[name](Person)"))).toBe( + norm("SELECT DISTINCT name FROM (Person)") + ); + }); + + it("should transpile project keyword", async () => { + expect(norm(await raToSQL("project[name, city](Person)"))).toBe( + norm("SELECT DISTINCT name, city FROM (Person)") + ); + }); + + it("should handle table.column references", async () => { + expect(norm(await raToSQL("π[Person.name](Person)"))).toBe( + norm("SELECT DISTINCT Person.name FROM (Person)") + ); + }); +}); + +// ─── Rename (ρ) ───────────────────────────────────────────────────────────── + +describe("rename (ρ)", () => { + it("should transpile ρ with Unicode arrow", async () => { + expect(norm(await raToSQL("ρ[name→fullName](Person)"))).toBe( + norm("SELECT name AS fullName FROM (Person)") + ); + }); + + it("should transpile rho with ASCII arrow", async () => { + expect(norm(await raToSQL("rho[name->fullName](Person)"))).toBe( + norm("SELECT name AS fullName FROM (Person)") + ); + }); + + it("should handle multiple rename mappings", async () => { + const sql = await raToSQL("ρ[name→fullName, age→years](Person)"); + expect(norm(sql)).toBe( + norm("SELECT name AS fullName, age AS years FROM (Person)") + ); + }); +}); + +// ─── Cross product (×) ───────────────────────────────────────────────────── + +describe("cross product (×)", () => { + it("should transpile × operator", async () => { + const sql = await raToSQL("Person × Course"); + expect(norm(sql)).toContain("CROSS JOIN"); + }); + + it("should transpile cross keyword", async () => { + const sql = await raToSQL("Person cross Course"); + expect(norm(sql)).toContain("CROSS JOIN"); + }); +}); + +// ─── Natural join (⋈) ────────────────────────────────────────────────────── + +describe("natural join (⋈)", () => { + it("should transpile ⋈ operator", async () => { + const sql = await raToSQL("Person ⋈ Student"); + expect(norm(sql)).toContain("NATURAL JOIN"); + }); + + it("should transpile natjoin keyword", async () => { + const sql = await raToSQL("Person natjoin Student"); + expect(norm(sql)).toContain("NATURAL JOIN"); + }); + + it("should error on impossible natural join when database is provided", async () => { + const SQL = await initSqlJs(); + const db = new SQL.Database(); + db.run("CREATE TABLE TableA (id INTEGER, name TEXT)"); + db.run("CREATE TABLE TableB (code TEXT, description TEXT)"); + + await expect(raToSQL("TableA ⋈ TableB", new SqliteEngine(db))).rejects.toThrow(RAError); + await expect(raToSQL("TableA ⋈ TableB", new SqliteEngine(db))).rejects.toThrow(/no common columns/i); + db.close(); + }); + + it("should not error on valid natural join when database is provided", async () => { + const SQL = await initSqlJs(); + const db = new SQL.Database(); + db.run("CREATE TABLE Person (id INTEGER, name TEXT, city TEXT)"); + db.run("CREATE TABLE Student (id INTEGER, hasDisability INTEGER)"); + + await expect(raToSQL("Person ⋈ Student", new SqliteEngine(db))).resolves.not.toThrow(); + db.close(); + }); + + it("should error on natural join with non-existent table", async () => { + const SQL = await initSqlJs(); + const db = new SQL.Database(); + db.run("CREATE TABLE Person (id INTEGER, name TEXT)"); + + await expect(raToSQL("Person ⋈ Room", new SqliteEngine(db))).rejects.toThrow(RAError); + await expect(raToSQL("Person ⋈ Room", new SqliteEngine(db))).rejects.toThrow(/Room/); + db.close(); + }); + + it("should error on natural join with no common columns through subquery", async () => { + const SQL = await initSqlJs(); + const db = new SQL.Database(); + db.run("CREATE TABLE Person (person_id INTEGER, name TEXT, city TEXT)"); + db.run("CREATE TABLE Room (room_id INTEGER, building TEXT, capacity INTEGER)"); + + await expect(raToSQL("σ[city = 'York'](Person) ⋈ Room", new SqliteEngine(db))).rejects.toThrow(RAError); + await expect(raToSQL("σ[city = 'York'](Person) ⋈ Room", new SqliteEngine(db))).rejects.toThrow(/no common columns/i); + db.close(); + }); + + it("should not error when no database is provided (parse-only mode)", async () => { + await expect(raToSQL("TableA ⋈ TableB")).resolves.not.toThrow(); + }); + + it("should support |X| as natural join", async () => { + const sql = await raToSQL("Person |X| Student"); + expect(norm(sql)).toContain("NATURAL JOIN"); + }); + + it("should support |><| as natural join", async () => { + const sql = await raToSQL("Person |><| Student"); + expect(norm(sql)).toContain("NATURAL JOIN"); + }); +}); + +// ─── Theta join (⋈[cond]) ────────────────────────────────────────────────── + +describe("theta join (⋈[cond])", () => { + it("should transpile ⋈ with condition", async () => { + const sql = await raToSQL("Person ⋈[Person.id = Student.id] Student"); + expect(norm(sql)).toContain("JOIN"); + expect(norm(sql)).toContain("ON Person.id = Student.id"); + expect(norm(sql)).not.toContain("NATURAL"); + }); + + it("should transpile join keyword with condition", async () => { + const sql = await raToSQL("Person join[Person.id = Student.id] Student"); + expect(norm(sql)).toContain("JOIN"); + expect(norm(sql)).toContain("ON Person.id = Student.id"); + }); +}); + +// ─── Set operations ───────────────────────────────────────────────────────── + +describe("set operations", () => { + it("should transpile union with ∪", async () => { + const sql = await raToSQL("π[name](Person) ∪ π[name](Teacher)"); + expect(norm(sql)).toContain("UNION"); + }); + + it("should transpile union keyword", async () => { + const sql = await raToSQL("π[name](Person) union π[name](Teacher)"); + expect(norm(sql)).toContain("UNION"); + }); + + it("should transpile intersect with ∩", async () => { + const sql = await raToSQL("π[name](Person) ∩ π[name](Teacher)"); + expect(norm(sql)).toContain("INTERSECT"); + }); + + it("should transpile difference with −", async () => { + const sql = await raToSQL("π[name](Person) − π[name](Teacher)"); + expect(norm(sql)).toContain("EXCEPT"); + }); + + it("should transpile minus keyword", async () => { + const sql = await raToSQL("π[name](Person) minus π[name](Teacher)"); + expect(norm(sql)).toContain("EXCEPT"); + }); + + it("should transpile backslash as set difference", async () => { + const sql = await raToSQL("A \\ B"); + expect(norm(sql)).toContain("EXCEPT"); + }); + + it("should generate valid SQL for bare table set operations", async () => { + // Set ops need SELECT statements on both sides, not bare table names + const unionSql = norm(await raToSQL("A union B")); + expect(unionSql).toMatch(/SELECT \* FROM A\s+UNION\s+SELECT \* FROM B/i); + + const exceptSql = norm(await raToSQL("A minus B")); + expect(exceptSql).toMatch(/SELECT \* FROM A\s+EXCEPT\s+SELECT \* FROM B/i); + + const intersectSql = norm(await raToSQL("A intersect B")); + expect(intersectSql).toMatch(/SELECT \* FROM A\s+INTERSECT\s+SELECT \* FROM B/i); + }); + + it("should handle set difference with hyphenated expression", async () => { + const sql = await raToSQL("PI[name, city](Person - Teacher)"); + expect(norm(sql)).toContain("EXCEPT"); + expect(norm(sql)).toContain("SELECT DISTINCT name, city"); + }); + + it("should error on union-incompatible column counts when database is provided", async () => { + const SQL = await initSqlJs(); + const db = new SQL.Database(); + db.run("CREATE TABLE A (x INTEGER, y TEXT)"); + db.run("CREATE TABLE B (x INTEGER, y TEXT, z TEXT)"); + + await expect(raToSQL("A union B", new SqliteEngine(db))).rejects.toThrow(RAError); + await expect(raToSQL("A union B", new SqliteEngine(db))).rejects.toThrow(/same number of columns/i); + await expect(raToSQL("A minus B", new SqliteEngine(db))).rejects.toThrow(RAError); + await expect(raToSQL("A intersect B", new SqliteEngine(db))).rejects.toThrow(RAError); + + // Should NOT throw when column counts match + db.run("CREATE TABLE C (a INTEGER, b TEXT)"); + await expect(raToSQL("A union C", new SqliteEngine(db))).resolves.not.toThrow(); + db.close(); + }); + + it("should include column names in union-incompatible error message", async () => { + const SQL = await initSqlJs(); + const db = new SQL.Database(); + db.run("CREATE TABLE R1 (name TEXT, city TEXT)"); + db.run("CREATE TABLE R2 (name TEXT, city TEXT, age INTEGER)"); + + await expect(raToSQL("R1 union R2", new SqliteEngine(db))).rejects.toThrow(/Left has 2/); + await expect(raToSQL("R1 union R2", new SqliteEngine(db))).rejects.toThrow(/right has 3/); + db.close(); + }); +}); + +// ─── Outer joins ──────────────────────────────────────────────────────────── + +describe("outer joins", () => { + it("should transpile left outer join", async () => { + const sql = await raToSQL("Person leftjoin[Person.id = Student.id] Student"); + expect(norm(sql)).toContain("LEFT JOIN"); + expect(norm(sql)).toContain("ON Person.id = Student.id"); + }); + + it("should transpile right outer join", async () => { + const sql = await raToSQL("Person rightjoin[Person.id = Student.id] Student"); + expect(norm(sql)).toContain("RIGHT JOIN"); + }); + + it("should transpile full outer join", async () => { + const sql = await raToSQL("Person fulljoin[Person.id = Student.id] Student"); + expect(norm(sql)).toContain("FULL OUTER JOIN"); + }); + + it("should transpile left outer join with Unicode ⟕", async () => { + const sql = await raToSQL("Person ⟕[Person.id = Student.id] Student"); + expect(norm(sql)).toContain("LEFT JOIN"); + }); +}); + +// ─── Semi-joins and anti-join ─────────────────────────────────────────────── + +describe("semi-joins and anti-join", () => { + it("should transpile left semi-join", async () => { + const sql = await raToSQL("Person leftsemijoin Student"); + expect(norm(sql)).toContain("WHERE EXISTS"); + }); + + it("should transpile left semi-join with ⋉", async () => { + const sql = await raToSQL("Person ⋉ Student"); + expect(norm(sql)).toContain("WHERE EXISTS"); + }); + + it("should transpile right semi-join", async () => { + const sql = await raToSQL("Person rightsemijoin Student"); + expect(norm(sql)).toContain("WHERE EXISTS"); + }); + + it("should transpile anti-join", async () => { + const sql = await raToSQL("Person antijoin Student"); + expect(norm(sql)).toContain("WHERE NOT EXISTS"); + }); + + it("should transpile anti-join with ▷", async () => { + const sql = await raToSQL("Person ▷ Student"); + expect(norm(sql)).toContain("WHERE NOT EXISTS"); + }); +}); + +// ─── Division (÷) ────────────────────────────────────────────────────────── + +describe("division (÷)", () => { + it("should transpile ÷ operator", async () => { + const sql = await raToSQL("A ÷ B"); + expect(norm(sql)).toContain("NOT EXISTS"); + }); + + it("should transpile divide keyword", async () => { + const sql = await raToSQL("A divide B"); + expect(norm(sql)).toContain("NOT EXISTS"); + }); +}); + +// ─── Distinct (δ) ────────────────────────────────────────────────────────── + +describe("distinct (δ)", () => { + it("should transpile δ", async () => { + expect(norm(await raToSQL("δ(Person)"))).toBe( + norm("SELECT DISTINCT * FROM (Person)") + ); + }); + + it("should transpile delta keyword", async () => { + expect(norm(await raToSQL("delta(Person)"))).toBe( + norm("SELECT DISTINCT * FROM (Person)") + ); + }); + + it("should transpile distinct keyword", async () => { + expect(norm(await raToSQL("distinct(Person)"))).toBe( + norm("SELECT DISTINCT * FROM (Person)") + ); + }); +}); + +// ─── Sorting (τ) ──────────────────────────────────────────────────────────── + +describe("sorting (τ)", () => { + it("should transpile τ with single column", async () => { + const sql = await raToSQL("τ[name](Person)"); + expect(norm(sql)).toBe( + norm("SELECT * FROM (Person) ORDER BY name") + ); + }); + + it("should transpile τ with DESC", async () => { + const sql = await raToSQL("τ[age DESC](Person)"); + expect(norm(sql)).toBe( + norm("SELECT * FROM (Person) ORDER BY age DESC") + ); + }); + + it("should transpile sort keyword", async () => { + const sql = await raToSQL("sort[name](Person)"); + expect(norm(sql)).toContain("ORDER BY name"); + }); + + it("should handle multiple sort columns", async () => { + const sql = await raToSQL("τ[name, age DESC](Person)"); + expect(norm(sql)).toContain("ORDER BY name, age DESC"); + }); +}); + +// ─── Grouping/Aggregation (γ) ────────────────────────────────────────────── + +describe("grouping/aggregation (γ)", () => { + it("should transpile γ with group-by and aggregate", async () => { + const sql = await raToSQL("γ[city; COUNT(id)](Person)"); + expect(norm(sql)).toContain("COUNT(id)"); + expect(norm(sql)).toContain("GROUP BY city"); + }); + + it("should handle aggregate with alias", async () => { + const sql = await raToSQL("γ[city; COUNT(id) AS total](Person)"); + expect(norm(sql)).toContain("COUNT(id) AS total"); + expect(norm(sql)).toContain("GROUP BY city"); + }); + + it("should transpile gamma keyword", async () => { + const sql = await raToSQL("gamma[city; SUM(price) AS totalPrice](Course)"); + expect(norm(sql)).toContain("SUM(price) AS totalPrice"); + expect(norm(sql)).toContain("GROUP BY city"); + }); +}); + +// ─── Composition / nesting ────────────────────────────────────────────────── + +describe("composition and nesting", () => { + it("should handle projection of selection", async () => { + const sql = await raToSQL("π[name](σ[age > 20](Person))"); + expect(norm(sql)).toContain("SELECT DISTINCT name FROM"); + expect(norm(sql)).toContain("WHERE age > 20"); + }); + + it("should handle selection of join", async () => { + const sql = await raToSQL("σ[age > 20](Person ⋈ Student)"); + expect(norm(sql)).toContain("WHERE age > 20"); + expect(norm(sql)).toContain("NATURAL JOIN"); + }); + + it("should handle complex nested expression", async () => { + const sql = await raToSQL("π[name](σ[city = 'Stockholm'](Person ⋈ Student))"); + expect(norm(sql)).toContain("SELECT DISTINCT name FROM"); + expect(norm(sql)).toContain("WHERE city = 'Stockholm'"); + expect(norm(sql)).toContain("NATURAL JOIN"); + }); + + it("should handle parenthesised subexpressions", async () => { + const sql = await raToSQL("(Person ⋈ Student) ∪ (Person ⋈ Teacher)"); + expect(norm(sql)).toContain("UNION"); + expect(norm(sql).match(/NATURAL JOIN/g)?.length).toBe(2); + }); + + it("should handle deeply nested expressions", async () => { + const sql = await raToSQL("π[name](σ[age > 20](ρ[id→personId](Person)))"); + expect(norm(sql)).toContain("SELECT DISTINCT name FROM"); + expect(norm(sql)).toContain("WHERE age > 20"); + expect(norm(sql)).toContain("id AS personId"); + }); +}); + +// ─── Operator precedence ─────────────────────────────────────────────────── + +describe("operator precedence", () => { + it("should bind join tighter than union", async () => { + // A ⋈ B ∪ C should be (A ⋈ B) ∪ C, not A ⋈ (B ∪ C) + const sql = await raToSQL("A ⋈ B ∪ C"); + // The NATURAL JOIN should come before UNION in the SQL + expect(norm(sql)).toMatch(/NATURAL JOIN.*UNION/); + }); + + it("should bind intersect tighter than union", async () => { + const sql = await raToSQL("A ∪ B ∩ C"); + // B ∩ C should be grouped together + expect(norm(sql)).toContain("INTERSECT"); + expect(norm(sql)).toContain("UNION"); + }); +}); + +// ─── Error handling ───────────────────────────────────────────────────────── + +describe("error handling", () => { + it("should throw RAError on empty input", async () => { + await expect(raToSQL("")).rejects.toThrow(RAError); + }); + + it("should throw RAError on invalid syntax", async () => { + await expect(raToSQL("σ[](Person)")).rejects.toThrow(RAError); + }); + + it("should throw RAError on unclosed bracket", async () => { + await expect(raToSQL("σ[age > 20(Person)")).rejects.toThrow(RAError); + }); + + it("should throw RAError on unexpected token after expression", async () => { + await expect(raToSQL("Person Student")).rejects.toThrow(RAError); + }); + + it("should throw RAError on unterminated string", async () => { + await expect(raToSQL("σ[name = 'Alice](Person)")).rejects.toThrow(RAError); + }); + + it("should throw RAError on missing condition in selection", async () => { + await expect(raToSQL("σ(Person)")).rejects.toThrow(RAError); + }); + + it("should throw RAError on missing relation for selection", async () => { + await expect(raToSQL("σ[age > 20]")).rejects.toThrow(RAError); + }); +}); + +// ─── Multi-line / assignments (←) ────────────────────────────────────────── + +describe("multi-line and assignments", () => { + it("should handle simple assignment with ←", async () => { + const sql = await raToSQL("A ← Person\nA"); + expect(norm(sql)).toContain("WITH"); + expect(norm(sql)).toContain("A AS"); + }); + + it("should handle simple assignment with <-", async () => { + const sql = await raToSQL("A <- Person\nA"); + expect(norm(sql)).toContain("WITH"); + expect(norm(sql)).toContain("A AS"); + }); + + it("should handle assignment with complex expression", async () => { + const sql = await raToSQL("Students ← σ[age > 20](Person)\nπ[name](Students)"); + expect(norm(sql)).toContain("WITH"); + expect(norm(sql)).toContain("Students AS"); + expect(norm(sql)).toContain("WHERE age > 20"); + expect(norm(sql)).toContain("SELECT DISTINCT name FROM"); + }); + + it("should handle multiple assignments", async () => { + const input = [ + "A ← σ[city = 'Stockholm'](Person)", + "B ← π[name](A)", + "B", + ].join("\n"); + const sql = await raToSQL(input); + expect(norm(sql)).toContain("WITH"); + expect(norm(sql)).toContain("A AS"); + expect(norm(sql)).toContain("B AS"); + expect(norm(sql)).toContain("WHERE city = 'Stockholm'"); + expect(norm(sql)).toContain("SELECT DISTINCT name FROM"); + }); + + it("should handle assignment chaining with joins", async () => { + const input = [ + "PS ← Person ⋈ Student", + "Result ← π[name](PS)", + "Result", + ].join("\n"); + const sql = await raToSQL(input); + expect(norm(sql)).toContain("WITH"); + expect(norm(sql)).toContain("PS AS"); + expect(norm(sql)).toContain("NATURAL JOIN"); + expect(norm(sql)).toContain("Result AS"); + }); + + it("should handle semicolons as statement separators", async () => { + const sql = await raToSQL("A ← Person; π[name](A)"); + expect(norm(sql)).toContain("WITH"); + expect(norm(sql)).toContain("A AS"); + expect(norm(sql)).toContain("SELECT DISTINCT name FROM"); + }); + + it("should handle mixed newlines and semicolons", async () => { + const input = "A ← Person;\nB ← Student\nA ⋈ B"; + const sql = await raToSQL(input); + expect(norm(sql)).toContain("WITH"); + expect(norm(sql)).toContain("A AS"); + expect(norm(sql)).toContain("B AS"); + expect(norm(sql)).toContain("NATURAL JOIN"); + }); + + it("should still work with single-line expressions (no assignments)", async () => { + // No regression — single-line without assignment should work as before + expect(await raToSQL("Person")).toBe("Person"); + expect(norm(await raToSQL("π[name](Person)"))).toBe( + norm("SELECT DISTINCT name FROM (Person)") + ); + }); + + it("should handle -- comments in multi-line input", async () => { + const input = [ + "-- First get students", + "A ← σ[age > 20](Person)", + "-- Then project names", + "π[name](A)", + ].join("\n"); + const sql = await raToSQL(input); + expect(norm(sql)).toContain("WITH"); + expect(norm(sql)).toContain("A AS"); + expect(norm(sql)).toContain("WHERE age > 20"); + expect(norm(sql)).toContain("SELECT DISTINCT name FROM"); + }); + + it("should handle trailing newlines", async () => { + const sql = await raToSQL("Person\n\n\n"); + expect(sql).toBe("Person"); + }); + + it("should handle leading newlines", async () => { + const sql = await raToSQL("\n\n\nPerson"); + expect(sql).toBe("Person"); + }); + + it("should handle the student example: A <- pi[student](sigma[name='peter'](P))", async () => { + const input = "A <- π[student](σ[name = 'Peter'](Participation))\nA"; + const sql = await raToSQL(input); + expect(norm(sql)).toContain("WITH"); + expect(norm(sql)).toContain("A AS"); + expect(norm(sql)).toContain("SELECT DISTINCT student FROM"); + expect(norm(sql)).toContain("WHERE name = 'Peter'"); + }); +}); + +// ─── Alternative notation styles ──────────────────────────────────────────── + +describe("curly braces (LaTeX-style)", () => { + it("should support σ_{condition}(R)", async () => { + expect(norm(await raToSQL("σ_{age > 20}(Person)"))).toBe( + norm("SELECT * FROM (Person) WHERE age > 20") + ); + }); + + it("should support π_{cols}(R)", async () => { + expect(norm(await raToSQL("π_{name, city}(Person)"))).toBe( + norm("SELECT DISTINCT name, city FROM (Person)") + ); + }); + + it("should support ρ_{old→new}(R)", async () => { + expect(norm(await raToSQL("ρ_{name→fullName}(Person)"))).toBe( + norm("SELECT name AS fullName FROM (Person)") + ); + }); + + it("should support curly braces without underscore", async () => { + expect(norm(await raToSQL("σ{age > 20}(Person)"))).toBe( + norm("SELECT * FROM (Person) WHERE age > 20") + ); + }); + + it("should support theta join with curly braces", async () => { + const sql = await raToSQL("Person ⋈{Person.id = Student.id} Student"); + expect(norm(sql)).toContain("JOIN"); + expect(norm(sql)).toContain("ON Person.id = Student.id"); + }); +}); + +describe("implicit subscripts (no brackets)", () => { + it("should support σ condition (R)", async () => { + expect(norm(await raToSQL("σ age > 20 (Person)"))).toBe( + norm("SELECT * FROM (Person) WHERE age > 20") + ); + }); + + it("should support π cols (R)", async () => { + expect(norm(await raToSQL("π name, city (Person)"))).toBe( + norm("SELECT DISTINCT name, city FROM (Person)") + ); + }); + + it("should support sigma condition (R) with keyword", async () => { + expect(norm(await raToSQL("sigma age > 20 (Person)"))).toBe( + norm("SELECT * FROM (Person) WHERE age > 20") + ); + }); + + it("should support pi cols (R) with keyword", async () => { + expect(norm(await raToSQL("pi name (Person)"))).toBe( + norm("SELECT DISTINCT name FROM (Person)") + ); + }); + + it("should support ρ old→new (R) implicit", async () => { + expect(norm(await raToSQL("ρ name→fullName (Person)"))).toBe( + norm("SELECT name AS fullName FROM (Person)") + ); + }); + + it("should support τ col (R) implicit", async () => { + expect(norm(await raToSQL("τ name (Person)"))).toContain("ORDER BY name"); + }); + + it("should support nested implicit subscripts", async () => { + const sql = await raToSQL("π name (σ age > 20 (Person))"); + expect(norm(sql)).toContain("SELECT DISTINCT name FROM"); + expect(norm(sql)).toContain("WHERE age > 20"); + }); + + it("should support compound implicit condition with AND", async () => { + const sql = await raToSQL("σ age > 20 and city = 'Stockholm' (Person)"); + expect(norm(sql)).toContain("WHERE"); + expect(norm(sql)).toContain("AND"); + expect(norm(sql)).toContain("age > 20"); + }); + + it("should work with multi-line and implicit subscripts", async () => { + const input = [ + "A <- σ age > 20 (Person)", + "π name (A)", + ].join("\n"); + const sql = await raToSQL(input); + expect(norm(sql)).toContain("WITH"); + expect(norm(sql)).toContain("WHERE age > 20"); + expect(norm(sql)).toContain("SELECT DISTINCT name FROM"); + }); +}); + +describe("parenthesis-free syntax", () => { + it("should allow σ[cond] Table without parens", async () => { + expect(norm(await raToSQL("σ[age > 20] Person"))).toBe( + norm("SELECT * FROM (Person) WHERE age > 20") + ); + }); + + it("should allow π[cols] Table without parens", async () => { + expect(norm(await raToSQL("π[name] Person"))).toBe( + norm("SELECT DISTINCT name FROM (Person)") + ); + }); + + it("should allow chained unary ops without parens", async () => { + const sql = await raToSQL("π[name] σ[age > 20] Person"); + expect(norm(sql)).toContain("SELECT DISTINCT name FROM"); + expect(norm(sql)).toContain("WHERE age > 20"); + }); + + it("should handle the user's example without excessive parens", async () => { + const sql = await raToSQL("π[person_id, name, city] σ[city = 'York' OR city = 'Bristol'] Person"); + expect(norm(sql)).toContain("SELECT DISTINCT person_id, name, city FROM"); + expect(norm(sql)).toContain("WHERE"); + expect(norm(sql)).toContain("city = 'York'"); + expect(norm(sql)).toContain("city = 'Bristol'"); + }); + + it("should still work with parens for grouping binary ops", async () => { + const sql = await raToSQL("π[name] (Person ∪ Student)"); + expect(norm(sql)).toContain("SELECT DISTINCT name FROM"); + expect(norm(sql)).toContain("UNION"); + }); + + it("should allow δ Table without parens", async () => { + expect(norm(await raToSQL("δ Person"))).toContain("SELECT DISTINCT"); + }); + + it("should allow triple chain without parens", async () => { + const sql = await raToSQL("π[name] σ[age > 20] ρ[n→name] Person"); + expect(norm(sql)).toContain("SELECT DISTINCT name FROM"); + expect(norm(sql)).toContain("WHERE age > 20"); + expect(norm(sql)).toContain("n AS name"); + }); +}); + +describe("implicit return from last assignment", () => { + it("should return last assigned variable when no explicit result", async () => { + const sql = await raToSQL("A <- σ[age > 20](Person)"); + expect(norm(sql)).toContain("WITH A AS"); + expect(norm(sql)).toContain("SELECT * FROM A"); + }); + + it("should return last variable with multiple assignments", async () => { + const sql = await raToSQL("A <- σ[age > 20](Person)\nB <- π[name](A)"); + expect(norm(sql)).toContain("SELECT * FROM B"); + }); + + it("should still work when explicit result is given", async () => { + const sql = await raToSQL("A <- σ[age > 20](Person)\nA"); + expect(norm(sql)).toContain("SELECT * FROM A"); + }); + + it("should handle self-referential A <- A as a no-op", async () => { + const sql = await raToSQL("A <- A"); + expect(norm(sql)).toBe(norm("SELECT * FROM A")); + }); + + it("should handle variable reassignment with versioned CTE names", async () => { + const sql = await raToSQL("A <- σ[age > 20](Person)\nA <- π[name](A)\nA"); + expect(norm(sql)).toContain("WITH A AS"); + expect(norm(sql)).toContain("A_v2 AS"); + expect(norm(sql)).toContain("SELECT * FROM A_v2"); + }); + + it("should handle triple reassignment", async () => { + const sql = await raToSQL("X <- Person\nX <- σ[age > 20](X)\nX <- π[name](X)"); + expect(norm(sql)).toContain("X AS"); + expect(norm(sql)).toContain("X_v2 AS"); + expect(norm(sql)).toContain("X_v3 AS"); + expect(norm(sql)).toContain("SELECT * FROM X_v3"); + }); +}); + +// ─── SQLite execution ────────────────────────────────────────────────────── +// Every generated SQL statement must actually execute against a real database. + +describe("SQLite execution", () => { + let db: Database; + + beforeAll(async () => { + const SQL = await initSqlJs(); + db = new SQL.Database(); + db.run(` + CREATE TABLE Person (id INTEGER PRIMARY KEY, name TEXT, age INTEGER, city TEXT); + INSERT INTO Person VALUES (1, 'Alice', 25, 'Stockholm'); + INSERT INTO Person VALUES (2, 'Bob', 19, 'York'); + INSERT INTO Person VALUES (3, 'Carol', 30, 'Bristol'); + + CREATE TABLE Student (id INTEGER PRIMARY KEY, hasDisability INTEGER); + INSERT INTO Student VALUES (1, 0); + INSERT INTO Student VALUES (2, 1); + + CREATE TABLE Teacher (id INTEGER PRIMARY KEY, name TEXT, age INTEGER, city TEXT, department TEXT); + INSERT INTO Teacher VALUES (10, 'Dave', 45, 'Stockholm', 'CS'); + INSERT INTO Teacher VALUES (11, 'Eve', 38, 'York', 'Math'); + + CREATE TABLE Course (course_id INTEGER PRIMARY KEY, title TEXT, credits INTEGER); + INSERT INTO Course VALUES (100, 'Databases', 7); + INSERT INTO Course VALUES (101, 'Algorithms', 5); + + CREATE TABLE Enrollment (id INTEGER, course_id INTEGER); + INSERT INTO Enrollment VALUES (1, 100); + INSERT INTO Enrollment VALUES (1, 101); + INSERT INTO Enrollment VALUES (2, 100); + `); + }); + + afterAll(() => db.close()); + + /** Convert RA to SQL and execute, returning result rows */ + async function execRA(expr: string): Promise { + const sql = await raToSQL(expr, new SqliteEngine(db)); + return db.exec(sql); + } + + // ── Selection ── + + it("σ with condition", async () => { + const res = await execRA("σ[age > 20](Person)"); + expect(res[0].values.length).toBe(2); // Alice (25) and Carol (30) + }); + + it("σ with string comparison", async () => { + const res = await execRA("σ[name = 'Alice'](Person)"); + expect(res[0].values.length).toBe(1); + expect(res[0].values[0]).toContain("Alice"); + }); + + it("σ with compound condition", async () => { + const res = await execRA("σ[age > 20 and city = 'Stockholm'](Person)"); + expect(res[0].values.length).toBe(1); + expect(res[0].values[0]).toContain("Alice"); + }); + + // ── Projection ── + + it("π selects columns", async () => { + const res = await execRA("π[name, city](Person)"); + expect(res[0].columns).toEqual(["name", "city"]); + expect(res[0].values.length).toBe(3); + }); + + it("π eliminates duplicate tuples (set semantics)", async () => { + // Person × Student produces each Person.city twice (once per Student row), so the + // cross product has 6 rows. Projecting city must collapse the duplicates down to the + // 3 distinct cities — π follows relational-algebra set semantics, not SQL bag semantics. + const cross = await execRA("Person × Student"); + expect(cross[0].values.length).toBe(6); + const projected = await execRA("π[city](Person × Student)"); + expect(projected[0].columns).toEqual(["city"]); + expect(projected[0].values.length).toBe(3); + }); + + // ── Rename ── + + it("ρ renames columns", async () => { + const res = await execRA("ρ[name→fullName](Person)"); + expect(res[0].columns).toContain("fullName"); + expect(res[0].columns).not.toContain("name"); + }); + + // ── Natural join ── + + it("⋈ natural join", async () => { + const res = await execRA("Person ⋈ Student"); + expect(res[0].values.length).toBe(2); // ids 1 and 2 match + }); + + it("natjoin keyword", async () => { + const res = await execRA("Person natjoin Student"); + expect(res[0].values.length).toBe(2); + }); + + // ── Cross product ── + + it("× cross product", async () => { + const res = await execRA("Person × Course"); + expect(res[0].values.length).toBe(6); // 3 × 2 + }); + + // ── Theta join ── + + it("⋈[cond] theta join", async () => { + // Use unqualified column names since the generator aliases tables as _raN + const res = await execRA("Person ⋈[age > credits] Course"); + expect(res[0].values.length).toBeGreaterThan(0); + }); + + // ── Set operations ── + + it("∪ union", async () => { + const res = await execRA("π[name](Person) ∪ π[name](Teacher)"); + expect(res[0].values.length).toBe(5); // 3 + 2, all distinct names + }); + + it("∩ intersect", async () => { + // No overlapping names between Person and Teacher + const res = await execRA("π[name](Person) ∩ π[name](Teacher)"); + expect(res.length === 0 || res[0].values.length === 0).toBe(true); + }); + + it("− set difference", async () => { + const res = await execRA("π[name](Person) − π[name](Teacher)"); + expect(res[0].values.length).toBe(3); // All Person names, none overlap + }); + + it("minus keyword", async () => { + const res = await execRA("π[name](Person) minus π[name](Teacher)"); + expect(res[0].values.length).toBe(3); + }); + + it("bare table set difference (Person - Teacher)", async () => { + // Person and Teacher are union-compatible (both have id, name, age, city) + // but Teacher has an extra column (department) — use projections + const res = await execRA("π[id, name](Person) − π[id, name](Teacher)"); + expect(res[0].values.length).toBe(3); + }); + + it("set difference with hyphen syntax", async () => { + const res = await execRA("π[name, city](Person) - π[name, city](Teacher)"); + expect(res[0].values.length).toBeGreaterThan(0); + }); + + it("errors on union-incompatible set operations", async () => { + // Person has 4 cols (id, name, age, city), Course has 3 cols (course_id, title, credits) + await expect(execRA("Person union Course")).rejects.toThrow(RAError); + await expect(execRA("Person union Course")).rejects.toThrow(/same number of columns/i); + await expect(execRA("Person minus Course")).rejects.toThrow(RAError); + await expect(execRA("Person intersect Course")).rejects.toThrow(RAError); + }); + + it("backslash set difference", async () => { + const res = await execRA("π[name](Person) \\ π[name](Teacher)"); + expect(res[0].values.length).toBe(3); + }); + + // ── Outer joins ── + + it("leftjoin", async () => { + // Use unqualified column names since the generator aliases tables as _raN + const res = await execRA("Person leftjoin[age > credits] Course"); + expect(res[0].values.length).toBeGreaterThan(0); + }); + + // ── Semi-join ── + + it("⋉ left semi-join returns only matching rows", async () => { + const res = await execRA("Person ⋉ Student"); + // Person ids 1,2,3 — Student ids 1,2 — semi-join on common col "id" + expect(res[0].values.length).toBe(2); + }); + + // ── Anti-join ── + + it("▷ anti-join returns only non-matching rows", async () => { + const res = await execRA("Person ▷ Student"); + // Only Carol (id=3) has no matching Student row + expect(res[0].values.length).toBe(1); + expect(res[0].values[0]).toContain("Carol"); + }); + + // ── Distinct ── + + it("δ distinct", async () => { + const res = await execRA("δ(Person)"); + expect(res[0].values.length).toBe(3); + }); + + // ── Sort ── + + it("τ sort", async () => { + const res = await execRA("τ[name](Person)"); + expect(res[0].values[0]).toContain("Alice"); + expect(res[0].values[2]).toContain("Carol"); + }); + + it("τ sort DESC", async () => { + const res = await execRA("τ[age DESC](Person)"); + expect(res[0].values[0]).toContain("Carol"); // age 30, highest + }); + + // ── Grouping / aggregation ── + + it("γ group by with COUNT", async () => { + const res = await execRA("γ[city; COUNT(id) AS cnt](Person)"); + expect(res[0].columns).toContain("cnt"); + expect(res[0].values.length).toBe(3); // 3 distinct cities + }); + + // ── Division ── + + it("÷ division returns correct result", async () => { + // Enrollment: (1,100),(1,101),(2,100) — Course: (100),(101) + // Only id=1 is enrolled in ALL courses + const res = await execRA("π[id, course_id](Enrollment) ÷ π[course_id](Course)"); + expect(res[0].values.length).toBe(1); + expect(res[0].values[0]).toContain(1); // id=1 (Alice) + }); + + // ── Composition / nesting ── + + it("π of σ", async () => { + const res = await execRA("π[name](σ[age > 20](Person))"); + expect(res[0].columns).toEqual(["name"]); + expect(res[0].values.length).toBe(2); + }); + + it("σ of ⋈", async () => { + const res = await execRA("σ[age > 20](Person ⋈ Student)"); + expect(res[0].values.length).toBe(1); // Only Alice (25) matches + }); + + it("deeply nested", async () => { + const res = await execRA("π[name](σ[city = 'Stockholm'](Person ⋈ Student))"); + expect(res[0].values.length).toBe(1); + expect(res[0].values[0]).toContain("Alice"); + }); + + // ── Parenthesis-free syntax ── + + it("σ[cond] Table without parens", async () => { + const res = await execRA("σ[age > 20] Person"); + expect(res[0].values.length).toBe(2); + }); + + it("π[cols] σ[cond] Table chained", async () => { + const res = await execRA("π[name] σ[age > 20] Person"); + expect(res[0].columns).toEqual(["name"]); + expect(res[0].values.length).toBe(2); + }); + + // ── Implicit subscripts ── + + it("σ cond (R) implicit", async () => { + const res = await execRA("σ age > 20 (Person)"); + expect(res[0].values.length).toBe(2); + }); + + it("π cols (R) implicit", async () => { + const res = await execRA("π name, city (Person)"); + expect(res[0].columns).toEqual(["name", "city"]); + }); + + // ── Assignments ── + + it("single assignment", async () => { + const res = await execRA("A ← σ[age > 20](Person)\nπ[name](A)"); + expect(res[0].values.length).toBe(2); + }); + + it("multiple assignments", async () => { + const res = await execRA("A ← σ[city = 'Stockholm'](Person)\nB ← π[name](A)\nB"); + expect(res[0].values.length).toBe(1); + expect(res[0].values[0]).toContain("Alice"); + }); + + it("variable reassignment", async () => { + const res = await execRA("X ← Person\nX ← σ[age > 20](X)\nX ← π[name](X)"); + expect(res[0].values.length).toBe(2); + }); + + // ── LaTeX-style curly braces ── + + it("σ_{cond}(R)", async () => { + const res = await execRA("σ_{age > 20}(Person)"); + expect(res[0].values.length).toBe(2); + }); + + it("π_{cols}(R)", async () => { + const res = await execRA("π_{name, city}(Person)"); + expect(res[0].columns).toEqual(["name", "city"]); + }); + + it("ρ_{old→new}(R)", async () => { + const res = await execRA("ρ_{name→fullName}(Person)"); + expect(res[0].columns).toContain("fullName"); + expect(res[0].columns).not.toContain("name"); + }); + + it("σ{cond}(R) without underscore", async () => { + const res = await execRA("σ{age > 20}(Person)"); + expect(res[0].values.length).toBe(2); + }); + + it("⋈{cond} theta join with curly braces", async () => { + const res = await execRA("Person ⋈{age > credits} Course"); + expect(res[0].values.length).toBeGreaterThan(0); + }); + + // ── Selection edge cases ── + + it("σ with OR condition", async () => { + const res = await execRA("σ[city = 'Stockholm' or city = 'York'](Person)"); + expect(res[0].values.length).toBe(2); // Alice and Bob + }); + + it("σ with NOT condition", async () => { + const res = await execRA("σ[not age > 20](Person)"); + expect(res[0].values.length).toBe(1); // Only Bob (19) + expect(res[0].values[0]).toContain("Bob"); + }); + + it("σ with nested OR and AND", async () => { + const res = await execRA("σ[age > 20 or (name = 'Bob' and city = 'York')](Person)"); + expect(res[0].values.length).toBe(3); // Alice, Bob, Carol + }); + + it("σ with all comparison operators", async () => { + expect((await execRA("σ[age = 25](Person)"))[0].values.length).toBe(1); + expect((await execRA("σ[age <> 25](Person)"))[0].values.length).toBe(2); + expect((await execRA("σ[age != 25](Person)"))[0].values.length).toBe(2); + expect((await execRA("σ[age < 25](Person)"))[0].values.length).toBe(1); + expect((await execRA("σ[age > 25](Person)"))[0].values.length).toBe(1); + expect((await execRA("σ[age <= 25](Person)"))[0].values.length).toBe(2); + expect((await execRA("σ[age >= 25](Person)"))[0].values.length).toBe(2); + }); + + it("σ with table.column references", async () => { + const res = await execRA("σ[Person.age > 20](Person)"); + expect(res[0].values.length).toBe(2); + }); + + // ── Rename edge cases ── + + it("ρ with multiple rename mappings", async () => { + const res = await execRA("ρ[name→fullName, age→years](Person)"); + expect(res[0].columns).toContain("fullName"); + expect(res[0].columns).toContain("years"); + expect(res[0].columns).not.toContain("name"); + expect(res[0].columns).not.toContain("age"); + expect(res[0].values.length).toBe(3); + }); + + it("ρ with ASCII arrow", async () => { + const res = await execRA("rho[name->fullName](Person)"); + expect(res[0].columns).toContain("fullName"); + }); + + // ── Outer joins ── + + it("rightjoin", async () => { + const res = await execRA("Student rightjoin[age > hasDisability] Person"); + expect(res[0].values.length).toBeGreaterThan(0); + }); + + it("fulljoin", async () => { + const res = await execRA("Person fulljoin[age > credits] Course"); + expect(res[0].values.length).toBeGreaterThan(0); + }); + + it("⟕ left outer join with Unicode", async () => { + const res = await execRA("Person ⟕[age > credits] Course"); + expect(res[0].values.length).toBeGreaterThan(0); + }); + + it("left join preserves non-matching rows", async () => { + // Carol (age 30) has no Student row — left join should keep her with NULLs + const res = await execRA("Person leftjoin[Person.id = Student.id] Student"); + expect(res[0].values.length).toBe(3); // All 3 Person rows + }); + + // ── Semi-join edge cases ── + + it("⋊ right semi-join", async () => { + const res = await execRA("Student ⋊ Person"); + // Student ids 1,2 both exist in Person — all Student rows match + expect(res[0].values.length).toBe(2); + }); + + it("rightsemijoin keyword", async () => { + const res = await execRA("Student rightsemijoin Person"); + expect(res[0].values.length).toBe(2); + }); + + it("leftsemijoin keyword", async () => { + const res = await execRA("Person leftsemijoin Student"); + expect(res[0].values.length).toBe(2); + }); + + it("antijoin keyword", async () => { + const res = await execRA("Person antijoin Student"); + expect(res[0].values.length).toBe(1); + expect(res[0].values[0]).toContain("Carol"); + }); + + // ── Sort edge cases ── + + it("τ with multiple sort columns", async () => { + const res = await execRA("τ[city, age DESC](Person)"); + // Bristol(30), Stockholm(25), York(19) + expect(res[0].values[0]).toContain("Carol"); // Bristol + expect(res[0].values[1]).toContain("Alice"); // Stockholm + expect(res[0].values[2]).toContain("Bob"); // York + }); + + it("sort keyword", async () => { + const res = await execRA("sort[name](Person)"); + expect(res[0].values[0]).toContain("Alice"); + expect(res[0].values[2]).toContain("Carol"); + }); + + // ── Aggregation edge cases ── + + it("γ with SUM", async () => { + const res = await execRA("γ[city; SUM(age) AS totalAge](Person)"); + expect(res[0].columns).toContain("totalAge"); + expect(res[0].values.length).toBe(3); + }); + + it("γ with AVG", async () => { + const res = await execRA("γ[city; AVG(age) AS avgAge](Person)"); + expect(res[0].columns).toContain("avgAge"); + expect(res[0].values.length).toBe(3); + }); + + it("γ with MIN and MAX", async () => { + const res = await execRA("γ[city; MIN(age) AS youngest, MAX(age) AS oldest](Person)"); + expect(res[0].columns).toContain("youngest"); + expect(res[0].columns).toContain("oldest"); + }); + + it("γ COUNT without alias", async () => { + const res = await execRA("γ[city; COUNT(id)](Person)"); + expect(res[0].values.length).toBe(3); + }); + + it("gamma keyword", async () => { + const res = await execRA("gamma[city; COUNT(id) AS cnt](Person)"); + expect(res[0].columns).toContain("cnt"); + }); + + // ── Distinct edge cases ── + + it("delta keyword", async () => { + const res = await execRA("delta(Person)"); + expect(res[0].values.length).toBe(3); + }); + + it("distinct keyword", async () => { + const res = await execRA("distinct(Person)"); + expect(res[0].values.length).toBe(3); + }); + + it("δ without parens", async () => { + const res = await execRA("δ Person"); + expect(res[0].values.length).toBe(3); + }); + + // ── Keyword variants for operators ── + + it("select keyword", async () => { + const res = await execRA("select[age > 20](Person)"); + expect(res[0].values.length).toBe(2); + }); + + it("project keyword", async () => { + const res = await execRA("project[name, city](Person)"); + expect(res[0].columns).toEqual(["name", "city"]); + }); + + it("cross keyword", async () => { + const res = await execRA("Person cross Course"); + expect(res[0].values.length).toBe(6); + }); + + it("join keyword with condition", async () => { + const res = await execRA("Person join[age > credits] Course"); + expect(res[0].values.length).toBeGreaterThan(0); + }); + + it("|X| as natural join", async () => { + const res = await execRA("Person |X| Student"); + expect(res[0].values.length).toBe(2); + }); + + it("|><| as natural join", async () => { + const res = await execRA("Person |><| Student"); + expect(res[0].values.length).toBe(2); + }); + + it("intersect keyword", async () => { + const res = await execRA("π[name](Person) intersect π[name](Teacher)"); + expect(res.length === 0 || res[0].values.length === 0).toBe(true); + }); + + it("divide keyword", async () => { + const res = await execRA("π[id, course_id](Enrollment) divide π[course_id](Course)"); + expect(res[0].values.length).toBe(1); + expect(res[0].values[0]).toContain(1); + }); + + // ── Implicit subscripts edge cases ── + + it("ρ old→new (R) implicit", async () => { + const res = await execRA("ρ name→fullName (Person)"); + expect(res[0].columns).toContain("fullName"); + }); + + it("τ col (R) implicit", async () => { + const res = await execRA("τ name (Person)"); + expect(res[0].values[0]).toContain("Alice"); + }); + + it("σ compound implicit with AND", async () => { + const res = await execRA("σ age > 20 and city = 'Stockholm' (Person)"); + expect(res[0].values.length).toBe(1); + expect(res[0].values[0]).toContain("Alice"); + }); + + it("nested implicit subscripts", async () => { + const res = await execRA("π name (σ age > 20 (Person))"); + expect(res[0].columns).toEqual(["name"]); + expect(res[0].values.length).toBe(2); + }); + + // ── Parenthesis-free edge cases ── + + it("triple chain without parens", async () => { + const res = await execRA("π[name] σ[age > 20] δ Person"); + expect(res[0].columns).toEqual(["name"]); + expect(res[0].values.length).toBe(2); + }); + + it("π[cols] over union with parens", async () => { + const res = await execRA("π[name] (π[name](Person) ∪ π[name](Teacher))"); + expect(res[0].values.length).toBe(5); + }); + + // ── Assignment edge cases ── + + it("assignment with <- ASCII arrow", async () => { + const res = await execRA("A <- σ[age > 20](Person)\nπ[name](A)"); + expect(res[0].values.length).toBe(2); + }); + + it("semicolons as statement separators", async () => { + const res = await execRA("A ← Person; π[name](A)"); + expect(res[0].values.length).toBe(3); + }); + + it("comments in multi-line input", async () => { + const res = await execRA("-- Get adults\nA ← σ[age > 20](Person)\n-- Project names\nπ[name](A)"); + expect(res[0].values.length).toBe(2); + }); + + it("implicit return from last assignment", async () => { + const res = await execRA("A ← σ[age > 20](Person)"); + expect(res[0].values.length).toBe(2); + }); + + it("complex pipeline with reassignment", async () => { + const res = await execRA("X ← Person ⋈ Student\nX ← σ[age > 20](X)\nX ← π[name](X)"); + expect(res[0].values.length).toBe(1); + expect(res[0].values[0]).toContain("Alice"); + }); +}); diff --git a/src/ra-engine/relationalAlgebra.ts b/src/ra-engine/relationalAlgebra.ts new file mode 100644 index 0000000..a26fda5 --- /dev/null +++ b/src/ra-engine/relationalAlgebra.ts @@ -0,0 +1,1354 @@ +/* +Relational Algebra engine for sql-validator +Copyright (C) 2026 E.SU. IT AB (Org.no 559484-0505) and Edwin Sundberg + +Licensed under the Business Source License 1.1 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License in the LICENSE.md file in this repository. +*/ + +import type { DatabaseEngine } from "../database/types"; + +// ─── Token Types ──────────────────────────────────────────────────────────── + +enum TokenType { + // Unary operators + SIGMA = "SIGMA", // σ or sigma + PI = "PI", // π or pi + RHO = "RHO", // ρ or rho + GAMMA = "GAMMA", // γ or gamma (grouping/aggregation) + TAU = "TAU", // τ or tau (sorting) + DELTA = "DELTA", // δ or delta (duplicate elimination / DISTINCT) + // Binary operators + CROSS = "CROSS", // × or cross + NATJOIN = "NATJOIN", // ⋈ or natjoin + JOIN = "JOIN", // join (theta join with condition) + UNION = "UNION", // ∪ or union + INTERSECT = "INTERSECT", // ∩ or intersect + MINUS = "MINUS", // − or minus or \ + DIVIDE = "DIVIDE", // ÷ or divide + LEFTJOIN = "LEFTJOIN", // ⟕ or leftjoin + RIGHTJOIN = "RIGHTJOIN", // ⟖ or rightjoin + FULLJOIN = "FULLJOIN", // ⟗ or fulljoin + LEFTSEMIJOIN = "LEFTSEMIJOIN", // ⋉ or leftsemijoin + RIGHTSEMIJOIN = "RIGHTSEMIJOIN", // ⋊ or rightsemijoin + ANTIJOIN = "ANTIJOIN", // ▷ or antijoin + // Delimiters + LPAREN = "LPAREN", // ( + RPAREN = "RPAREN", // ) + LBRACKET = "LBRACKET", // [ + RBRACKET = "RBRACKET", // ] + COMMA = "COMMA", // , + // Identifiers, literals + IDENTIFIER = "IDENTIFIER", + NUMBER = "NUMBER", + STRING = "STRING", // 'value' + // Condition tokens (passed through inside brackets) + CONDITION = "CONDITION", + // Operators within conditions + EQ = "EQ", // = + NEQ = "NEQ", // <> or != + LT = "LT", // < + GT = "GT", // > + LTE = "LTE", // <= + GTE = "GTE", // >= + AND = "AND", + OR = "OR", + NOT = "NOT", + DOT = "DOT", // . + ARROW = "ARROW", // → or -> + ASSIGN = "ASSIGN", // ← or <- + SEMICOLON = "SEMICOLON", + NEWLINE = "NEWLINE", // line break (statement separator) + EOF = "EOF", +} + +interface Token { + type: TokenType; + value: string; + pos: number; +} + +// ─── Tokenizer ────────────────────────────────────────────────────────────── + +// Unicode symbol → TokenType map +const UNICODE_OPS: Record = { + "σ": TokenType.SIGMA, + "π": TokenType.PI, + "ρ": TokenType.RHO, + "γ": TokenType.GAMMA, + "τ": TokenType.TAU, + "δ": TokenType.DELTA, + "×": TokenType.CROSS, + "⋈": TokenType.NATJOIN, + "∪": TokenType.UNION, + "∩": TokenType.INTERSECT, + "−": TokenType.MINUS, + "÷": TokenType.DIVIDE, + "⟕": TokenType.LEFTJOIN, + "⟖": TokenType.RIGHTJOIN, + "⟗": TokenType.FULLJOIN, + "⋉": TokenType.LEFTSEMIJOIN, + "⋊": TokenType.RIGHTSEMIJOIN, + "▷": TokenType.ANTIJOIN, + "←": TokenType.ASSIGN, +}; + +// Keyword → TokenType map (case-insensitive) +const KEYWORD_OPS: Record = { + "sigma": TokenType.SIGMA, + "select": TokenType.SIGMA, + "pi": TokenType.PI, + "project": TokenType.PI, + "rho": TokenType.RHO, + "rename": TokenType.RHO, + "gamma": TokenType.GAMMA, + "tau": TokenType.TAU, + "sort": TokenType.TAU, + "delta": TokenType.DELTA, + "distinct": TokenType.DELTA, + "cross": TokenType.CROSS, + "natjoin": TokenType.NATJOIN, + "join": TokenType.JOIN, + "union": TokenType.UNION, + "intersect": TokenType.INTERSECT, + "minus": TokenType.MINUS, + "divide": TokenType.DIVIDE, + "leftjoin": TokenType.LEFTJOIN, + "rightjoin": TokenType.RIGHTJOIN, + "fulljoin": TokenType.FULLJOIN, + "leftsemijoin": TokenType.LEFTSEMIJOIN, + "rightsemijoin": TokenType.RIGHTSEMIJOIN, + "antijoin": TokenType.ANTIJOIN, + "and": TokenType.AND, + "or": TokenType.OR, + "not": TokenType.NOT, +}; + +function tokenize(input: string): Token[] { + const tokens: Token[] = []; + let i = 0; + + while (i < input.length) { + // Skip comments (lines starting with --) + if (input[i] === "-" && i + 1 < input.length && input[i + 1] === "-") { + while (i < input.length && input[i] !== "\n") i++; + continue; + } + + // Emit newlines as statement separators, skip other whitespace + if (input[i] === "\n" || input[i] === "\r") { + // Skip consecutive newlines and emit at most one NEWLINE token + while (i < input.length && (input[i] === "\n" || input[i] === "\r")) i++; + // Only emit if there are tokens before this (not leading newlines) + // and the last token isn't already a newline/semicolon + if (tokens.length > 0 && + tokens[tokens.length - 1].type !== TokenType.NEWLINE && + tokens[tokens.length - 1].type !== TokenType.SEMICOLON) { + tokens.push({ type: TokenType.NEWLINE, value: "\\n", pos: i }); + } + continue; + } + if (/\s/.test(input[i])) { + i++; + continue; + } + + const pos = i; + const ch = input[i]; + + // Check for Unicode operators + if (UNICODE_OPS[ch]) { + tokens.push({ type: UNICODE_OPS[ch], value: ch, pos }); + i++; + continue; + } + + // Single-char tokens + if (ch === "(") { tokens.push({ type: TokenType.LPAREN, value: ch, pos }); i++; continue; } + if (ch === ")") { tokens.push({ type: TokenType.RPAREN, value: ch, pos }); i++; continue; } + if (ch === "[") { tokens.push({ type: TokenType.LBRACKET, value: ch, pos }); i++; continue; } + if (ch === "]") { tokens.push({ type: TokenType.RBRACKET, value: ch, pos }); i++; continue; } + // Curly braces as alternative to square brackets (LaTeX-style σ_{cond}) + if (ch === "{") { tokens.push({ type: TokenType.LBRACKET, value: ch, pos }); i++; continue; } + if (ch === "}") { tokens.push({ type: TokenType.RBRACKET, value: ch, pos }); i++; continue; } + // Underscore: skip silently (allows LaTeX-style σ_{cond} — the _ is just decoration) + if (ch === "_") { i++; continue; } + if (ch === ",") { tokens.push({ type: TokenType.COMMA, value: ch, pos }); i++; continue; } + if (ch === ".") { tokens.push({ type: TokenType.DOT, value: ch, pos }); i++; continue; } + if (ch === ";") { tokens.push({ type: TokenType.SEMICOLON, value: ch, pos }); i++; continue; } + if (ch === "\\") { tokens.push({ type: TokenType.MINUS, value: ch, pos }); i++; continue; } + + // |X| or |><| — natural join + if (ch === "|") { + // Check for |X| + if (i + 2 < input.length && (input[i + 1] === "X" || input[i + 1] === "x") && input[i + 2] === "|") { + tokens.push({ type: TokenType.JOIN, value: "|X|", pos }); + i += 3; + continue; + } + // Check for |><| + if (i + 3 < input.length && input[i + 1] === ">" && input[i + 2] === "<" && input[i + 3] === "|") { + tokens.push({ type: TokenType.JOIN, value: "|><|", pos }); + i += 4; + continue; + } + } + + // Arrow: → or -> + if (ch === "→") { tokens.push({ type: TokenType.ARROW, value: ch, pos }); i++; continue; } + if (ch === "-" && i + 1 < input.length && input[i + 1] === ">") { + tokens.push({ type: TokenType.ARROW, value: "->", pos }); + i += 2; + continue; + } + + // Assignment: <- (must be checked before comparison operators) + if (ch === "<" && i + 1 < input.length && input[i + 1] === "-") { + tokens.push({ type: TokenType.ASSIGN, value: "<-", pos }); i += 2; continue; + } + + // Comparison operators + if (ch === "=" ) { tokens.push({ type: TokenType.EQ, value: "=", pos }); i++; continue; } + if (ch === "<" && i + 1 < input.length && input[i + 1] === ">") { + tokens.push({ type: TokenType.NEQ, value: "<>", pos }); i += 2; continue; + } + if (ch === "!" && i + 1 < input.length && input[i + 1] === "=") { + tokens.push({ type: TokenType.NEQ, value: "!=", pos }); i += 2; continue; + } + if (ch === "<" && i + 1 < input.length && input[i + 1] === "=") { + tokens.push({ type: TokenType.LTE, value: "<=", pos }); i += 2; continue; + } + if (ch === ">" && i + 1 < input.length && input[i + 1] === "=") { + tokens.push({ type: TokenType.GTE, value: ">=", pos }); i += 2; continue; + } + if (ch === "<") { tokens.push({ type: TokenType.LT, value: "<", pos }); i++; continue; } + if (ch === ">") { tokens.push({ type: TokenType.GT, value: ">", pos }); i++; continue; } + + // Minus (as set difference) when not part of -> + if (ch === "-") { tokens.push({ type: TokenType.MINUS, value: "-", pos }); i++; continue; } + + // String literals + if (ch === "'") { + let str = ""; + i++; // skip opening quote + while (i < input.length && input[i] !== "'") { + if (input[i] === "\\" && i + 1 < input.length) { + str += input[i + 1]; + i += 2; + } else { + str += input[i]; + i++; + } + } + if (i >= input.length) throw new RAError(`Unterminated string literal at position ${pos}`); + i++; // skip closing quote + tokens.push({ type: TokenType.STRING, value: str, pos }); + continue; + } + + // Numbers + if (/\d/.test(ch)) { + let num = ""; + while (i < input.length && /[\d.]/.test(input[i])) { + num += input[i]; + i++; + } + tokens.push({ type: TokenType.NUMBER, value: num, pos }); + continue; + } + + // Identifiers and keywords + if (/[a-zA-Z_\u00C0-\u024F]/.test(ch)) { + let ident = ""; + while (i < input.length && /[a-zA-Z0-9_\u00C0-\u024F]/.test(input[i])) { + ident += input[i]; + i++; + } + const lower = ident.toLowerCase(); + if (KEYWORD_OPS[lower]) { + tokens.push({ type: KEYWORD_OPS[lower], value: ident, pos }); + } else { + tokens.push({ type: TokenType.IDENTIFIER, value: ident, pos }); + } + continue; + } + + throw new RAError(`Unexpected character '${ch}' at position ${pos}`); + } + + tokens.push({ type: TokenType.EOF, value: "", pos: i }); + return tokens; +} + +// ─── AST Node Types ───────────────────────────────────────────────────────── + +type RANode = + | TableNode + | SelectionNode + | ProjectionNode + | RenameNode + | GroupNode + | SortNode + | DistinctNode + | CrossProductNode + | NaturalJoinNode + | ThetaJoinNode + | LeftJoinNode + | RightJoinNode + | FullJoinNode + | LeftSemiJoinNode + | RightSemiJoinNode + | AntiJoinNode + | UnionNode + | IntersectNode + | DifferenceNode + | DivisionNode; + +interface TableNode { type: "table"; name: string } +interface SelectionNode { type: "selection"; condition: ConditionNode; relation: RANode } +interface ProjectionNode { type: "projection"; columns: ColumnRef[]; relation: RANode } +interface RenameNode { type: "rename"; mappings: RenameMapping[]; relation: RANode } +interface GroupNode { type: "group"; groupBy: ColumnRef[]; aggregates: AggregateExpr[]; relation: RANode } +interface SortNode { type: "sort"; columns: SortColumn[]; relation: RANode } +interface DistinctNode { type: "distinct"; relation: RANode } +interface CrossProductNode { type: "crossProduct"; left: RANode; right: RANode } +interface NaturalJoinNode { type: "naturalJoin"; left: RANode; right: RANode } +interface ThetaJoinNode { type: "thetaJoin"; condition: ConditionNode; left: RANode; right: RANode } +interface LeftJoinNode { type: "leftJoin"; condition: ConditionNode; left: RANode; right: RANode } +interface RightJoinNode { type: "rightJoin"; condition: ConditionNode; left: RANode; right: RANode } +interface FullJoinNode { type: "fullJoin"; condition: ConditionNode; left: RANode; right: RANode } +interface LeftSemiJoinNode { type: "leftSemiJoin"; left: RANode; right: RANode } +interface RightSemiJoinNode { type: "rightSemiJoin"; left: RANode; right: RANode } +interface AntiJoinNode { type: "antiJoin"; left: RANode; right: RANode } +interface UnionNode { type: "union"; left: RANode; right: RANode } +interface IntersectNode { type: "intersect"; left: RANode; right: RANode } +interface DifferenceNode { type: "difference"; left: RANode; right: RANode } +interface DivisionNode { type: "division"; left: RANode; right: RANode } + +interface ColumnRef { table?: string; column: string } +interface RenameMapping { from: string; to: string } +interface SortColumn { column: ColumnRef; desc: boolean } +interface AggregateExpr { func: string; column: ColumnRef; alias?: string } + +type ConditionNode = + | ComparisonNode + | AndNode + | OrNode + | NotNode; + +interface ComparisonNode { type: "comparison"; left: ValueExpr; op: string; right: ValueExpr } +interface AndNode { type: "and"; left: ConditionNode; right: ConditionNode } +interface OrNode { type: "or"; left: ConditionNode; right: ConditionNode } +interface NotNode { type: "not"; operand: ConditionNode } + +type ValueExpr = + | ColumnRefExpr + | StringLiteral + | NumberLiteral + | FunctionCallExpr; + +interface ColumnRefExpr { type: "columnRef"; ref: ColumnRef } +interface StringLiteral { type: "string"; value: string } +interface NumberLiteral { type: "number"; value: string } +interface FunctionCallExpr { type: "functionCall"; name: string; args: ValueExpr[] } + +// ─── Error Type ───────────────────────────────────────────────────────────── + +export class RAError extends Error { + constructor(message: string) { + super(message); + this.name = "RAError"; + } +} + +// ─── Parser ───────────────────────────────────────────────────────────────── + +interface RAProgram { + assignments: { name: string; expr: RANode }[]; + result: RANode; +} + +class Parser { + private tokens: Token[]; + private pos: number; + + constructor(tokens: Token[]) { + this.tokens = tokens; + this.pos = 0; + } + + private peek(): Token { + return this.tokens[this.pos]; + } + + private advance(): Token { + const token = this.tokens[this.pos]; + this.pos++; + return token; + } + + private expect(type: TokenType): Token { + const token = this.peek(); + if (token.type !== type) { + throw new RAError(`Expected ${type} but got ${token.type} ('${token.value}') at position ${token.pos}`); + } + return this.advance(); + } + + private match(type: TokenType): boolean { + if (this.peek().type === type) { + this.advance(); + return true; + } + return false; + } + + // Grammar (precedence low→high): + // expr = union_expr + // union_expr = intersect_expr (( ∪ | − ) intersect_expr)* + // intersect_expr = join_expr ( ∩ join_expr)* + // join_expr = unary_expr (( × | ⋈ | ⋈[cond] | join[cond] | ÷ | ⟕[cond] | ⟖[cond] | ⟗[cond] | ⋉ | ⋊ | ▷ ) unary_expr)* + // unary_expr = (σ[cond] | π[cols] | ρ[mappings] | γ[...] | τ[...] | δ) unary_expr | primary + // primary = IDENTIFIER | '(' expr ')' + + parse(): RAProgram { + const assignments: { name: string; expr: RANode }[] = []; + + // Skip leading newlines + while (this.peek().type === TokenType.NEWLINE) this.advance(); + + while (this.peek().type !== TokenType.EOF) { + // Try to detect assignment: IDENTIFIER (← | <-) expr + if (this.peek().type === TokenType.IDENTIFIER) { + const saved = this.pos; + const name = this.advance().value; + if (this.peek().type === TokenType.ASSIGN) { + this.advance(); // consume ← / <- + const expr = this.parseUnionExpr(); + assignments.push({ name, expr }); + // Consume statement separator (newline, semicolon, or EOF) + while (this.peek().type === TokenType.SEMICOLON || this.peek().type === TokenType.NEWLINE) { + this.advance(); + } + continue; + } + // Not an assignment — backtrack and parse as expression + this.pos = saved; + } + + // Parse the final result expression + const result = this.parseUnionExpr(); + // Consume trailing separators + while (this.peek().type === TokenType.SEMICOLON || this.peek().type === TokenType.NEWLINE) { + this.advance(); + } + if (this.peek().type !== TokenType.EOF) { + throw new RAError(`Unexpected token '${this.peek().value}' at position ${this.peek().pos}`); + } + return { assignments, result }; + } + + // If we only have assignments and no final expression, implicitly return the last assigned variable + if (assignments.length > 0) { + const lastName = assignments[assignments.length - 1].name; + return { assignments, result: { type: "table", name: lastName } }; + } + + throw new RAError("Empty expression"); + } + + private parseUnionExpr(): RANode { + let left = this.parseIntersectExpr(); + while (this.peek().type === TokenType.UNION || this.peek().type === TokenType.MINUS) { + const op = this.advance(); + const right = this.parseIntersectExpr(); + if (op.type === TokenType.UNION) { + left = { type: "union", left, right }; + } else { + left = { type: "difference", left, right }; + } + } + return left; + } + + private parseIntersectExpr(): RANode { + let left = this.parseJoinExpr(); + while (this.peek().type === TokenType.INTERSECT) { + this.advance(); + const right = this.parseJoinExpr(); + left = { type: "intersect", left, right }; + } + return left; + } + + private parseJoinExpr(): RANode { + let left = this.parseUnaryExpr(); + // eslint-disable-next-line no-constant-condition + while (true) { + const t = this.peek().type; + if (t === TokenType.CROSS) { + this.advance(); + const right = this.parseUnaryExpr(); + left = { type: "crossProduct", left, right }; + } else if (t === TokenType.NATJOIN) { + this.advance(); + // Check if there's a condition: ⋈[cond] + if (this.peek().type === TokenType.LBRACKET) { + const condition = this.parseBracketedCondition(); + const right = this.parseUnaryExpr(); + left = { type: "thetaJoin", condition, left, right }; + } else { + const right = this.parseUnaryExpr(); + left = { type: "naturalJoin", left, right }; + } + } else if (t === TokenType.JOIN) { + this.advance(); + if (this.peek().type === TokenType.LBRACKET) { + const condition = this.parseBracketedCondition(); + const right = this.parseUnaryExpr(); + left = { type: "thetaJoin", condition, left, right }; + } else { + // join without condition = natural join + const right = this.parseUnaryExpr(); + left = { type: "naturalJoin", left, right }; + } + } else if (t === TokenType.DIVIDE) { + this.advance(); + const right = this.parseUnaryExpr(); + left = { type: "division", left, right }; + } else if (t === TokenType.LEFTJOIN) { + this.advance(); + const condition = this.parseBracketedCondition(); + const right = this.parseUnaryExpr(); + left = { type: "leftJoin", condition, left, right }; + } else if (t === TokenType.RIGHTJOIN) { + this.advance(); + const condition = this.parseBracketedCondition(); + const right = this.parseUnaryExpr(); + left = { type: "rightJoin", condition, left, right }; + } else if (t === TokenType.FULLJOIN) { + this.advance(); + const condition = this.parseBracketedCondition(); + const right = this.parseUnaryExpr(); + left = { type: "fullJoin", condition, left, right }; + } else if (t === TokenType.LEFTSEMIJOIN) { + this.advance(); + const right = this.parseUnaryExpr(); + left = { type: "leftSemiJoin", left, right }; + } else if (t === TokenType.RIGHTSEMIJOIN) { + this.advance(); + const right = this.parseUnaryExpr(); + left = { type: "rightSemiJoin", left, right }; + } else if (t === TokenType.ANTIJOIN) { + this.advance(); + const right = this.parseUnaryExpr(); + left = { type: "antiJoin", left, right }; + } else { + break; + } + } + return left; + } + + /** + * Check if the next token starts a subscript (bracket or implicit). + * Returns true if it's `[`, `{`, or any non-`(` token that could begin + * an implicit subscript (i.e., the subscript content before `(`). + */ + private hasSubscript(): boolean { + return this.peek().type === TokenType.LBRACKET || this.peek().type !== TokenType.LPAREN; + } + + /** + * Parse a subscript that may be: + * 1. Bracketed: `[...]` or `{...}` + * 2. Implicit: tokens up to the next unmatched `(` + * + * For implicit subscripts, we temporarily inject LBRACKET/RBRACKET + * around the subscript tokens so the same parsing logic can be reused. + */ + private parseSubscriptCondition(): ConditionNode { + if (this.peek().type === TokenType.LBRACKET) { + return this.parseBracketedCondition(); + } + // Implicit subscript: parse condition tokens until we hit LPAREN + // We parse directly — the condition ends when we encounter LPAREN at depth 0 + const cond = this.parseOrCondition(); + return cond; + } + + private parseSubscriptColumns(): ColumnRef[] { + if (this.peek().type === TokenType.LBRACKET) { + this.expect(TokenType.LBRACKET); + const cols = this.parseColumnList(); + this.expect(TokenType.RBRACKET); + return cols; + } + // Implicit: parse column list until LPAREN + return this.parseColumnList(); + } + + private parseSubscriptRenameMappings(): RenameMapping[] { + if (this.peek().type === TokenType.LBRACKET) { + this.expect(TokenType.LBRACKET); + const mappings = this.parseRenameMappings(); + this.expect(TokenType.RBRACKET); + return mappings; + } + return this.parseRenameMappings(); + } + + private parseSubscriptGroupSpec(): { groupBy: ColumnRef[]; aggregates: AggregateExpr[] } { + if (this.peek().type === TokenType.LBRACKET) { + this.expect(TokenType.LBRACKET); + const spec = this.parseGroupSpec(); + this.expect(TokenType.RBRACKET); + return spec; + } + return this.parseGroupSpec(); + } + + private parseSubscriptSortColumns(): SortColumn[] { + if (this.peek().type === TokenType.LBRACKET) { + this.expect(TokenType.LBRACKET); + const cols = this.parseSortColumns(); + this.expect(TokenType.RBRACKET); + return cols; + } + return this.parseSortColumns(); + } + + /** + * Parse the operand of a unary operator. + * If `(` follows, parse `(expr)`. Otherwise parse another unary or a table name. + * This allows `π[cols] σ[cond] Person` without mandatory parentheses. + */ + private parseUnaryOperand(): RANode { + if (this.peek().type === TokenType.LPAREN) { + this.advance(); + const expr = this.parseUnionExpr(); + this.expect(TokenType.RPAREN); + return expr; + } + return this.parseUnaryExpr(); + } + + private parseUnaryExpr(): RANode { + const t = this.peek().type; + + if (t === TokenType.SIGMA) { + this.advance(); + if (this.hasSubscript()) { + const condition = this.parseSubscriptCondition(); + const relation = this.parseUnaryOperand(); + return { type: "selection", condition, relation }; + } + throw new RAError("Selection (σ) requires a condition — use σ[condition](R) or σ condition (R)"); + } + + if (t === TokenType.PI) { + this.advance(); + if (this.hasSubscript()) { + const columns = this.parseSubscriptColumns(); + const relation = this.parseUnaryOperand(); + return { type: "projection", columns, relation }; + } + throw new RAError("Projection (π) requires column list — use π[cols](R) or π cols (R)"); + } + + if (t === TokenType.RHO) { + this.advance(); + if (this.hasSubscript()) { + const mappings = this.parseSubscriptRenameMappings(); + const relation = this.parseUnaryOperand(); + return { type: "rename", mappings, relation }; + } + throw new RAError("Rename (ρ) requires mappings — use ρ[old→new](R) or ρ old→new (R)"); + } + + if (t === TokenType.GAMMA) { + this.advance(); + if (this.hasSubscript()) { + const { groupBy, aggregates } = this.parseSubscriptGroupSpec(); + const relation = this.parseUnaryOperand(); + return { type: "group", groupBy, aggregates, relation }; + } + throw new RAError("Grouping (γ) requires specification — use γ[groupCols; AGG(col)](R)"); + } + + if (t === TokenType.TAU) { + this.advance(); + if (this.hasSubscript()) { + const columns = this.parseSubscriptSortColumns(); + const relation = this.parseUnaryOperand(); + return { type: "sort", columns, relation }; + } + throw new RAError("Sort (τ) requires column list — use τ[col](R) or τ col (R)"); + } + + if (t === TokenType.DELTA) { + this.advance(); + const relation = this.parseUnaryOperand(); + return { type: "distinct", relation }; + } + + return this.parsePrimary(); + } + + private parsePrimary(): RANode { + if (this.peek().type === TokenType.LPAREN) { + this.advance(); + const expr = this.parseUnionExpr(); + this.expect(TokenType.RPAREN); + return expr; + } + + if (this.peek().type === TokenType.IDENTIFIER) { + const name = this.advance().value; + return { type: "table", name }; + } + + throw new RAError(`Expected table name or '(' at position ${this.peek().pos}, got '${this.peek().value}'`); + } + + // ─── Condition parsing ────────────────────────────────────── + + private parseBracketedCondition(): ConditionNode { + this.expect(TokenType.LBRACKET); + const cond = this.parseOrCondition(); + this.expect(TokenType.RBRACKET); + return cond; + } + + private parseOrCondition(): ConditionNode { + let left = this.parseAndCondition(); + while (this.peek().type === TokenType.OR) { + this.advance(); + const right = this.parseAndCondition(); + left = { type: "or", left, right }; + } + return left; + } + + private parseAndCondition(): ConditionNode { + let left = this.parseNotCondition(); + while (this.peek().type === TokenType.AND) { + this.advance(); + const right = this.parseNotCondition(); + left = { type: "and", left, right }; + } + return left; + } + + private parseNotCondition(): ConditionNode { + if (this.peek().type === TokenType.NOT) { + this.advance(); + const operand = this.parseNotCondition(); + return { type: "not", operand }; + } + return this.parseComparisonCondition(); + } + + private parseComparisonCondition(): ConditionNode { + if (this.peek().type === TokenType.LPAREN) { + this.advance(); + const cond = this.parseOrCondition(); + this.expect(TokenType.RPAREN); + return cond; + } + + const left = this.parseValueExpr(); + const opToken = this.peek(); + let op: string; + if (opToken.type === TokenType.EQ) { op = "="; this.advance(); } + else if (opToken.type === TokenType.NEQ) { op = "<>"; this.advance(); } + else if (opToken.type === TokenType.LT) { op = "<"; this.advance(); } + else if (opToken.type === TokenType.GT) { op = ">"; this.advance(); } + else if (opToken.type === TokenType.LTE) { op = "<="; this.advance(); } + else if (opToken.type === TokenType.GTE) { op = ">="; this.advance(); } + else { + throw new RAError(`Expected comparison operator at position ${opToken.pos}, got '${opToken.value}'`); + } + const right = this.parseValueExpr(); + return { type: "comparison", left, op, right }; + } + + private parseValueExpr(): ValueExpr { + if (this.peek().type === TokenType.STRING) { + const token = this.advance(); + return { type: "string", value: token.value }; + } + if (this.peek().type === TokenType.NUMBER) { + const token = this.advance(); + return { type: "number", value: token.value }; + } + if (this.peek().type === TokenType.IDENTIFIER) { + const name = this.advance().value; + + // Check if it's a function call: NAME(args) + if (this.peek().type === TokenType.LPAREN) { + this.advance(); + const args: ValueExpr[] = []; + if (this.peek().type !== TokenType.RPAREN) { + args.push(this.parseValueExpr()); + while (this.match(TokenType.COMMA)) { + args.push(this.parseValueExpr()); + } + } + this.expect(TokenType.RPAREN); + return { type: "functionCall", name, args }; + } + + // Check for table.column + if (this.peek().type === TokenType.DOT) { + this.advance(); + const col = this.expect(TokenType.IDENTIFIER).value; + return { type: "columnRef", ref: { table: name, column: col } }; + } + return { type: "columnRef", ref: { column: name } }; + } + throw new RAError(`Expected value expression at position ${this.peek().pos}, got '${this.peek().value}'`); + } + + // ─── Column list parsing ──────────────────────────────────── + + private parseColumnList(): ColumnRef[] { + const columns: ColumnRef[] = []; + columns.push(this.parseColumnRef()); + while (this.match(TokenType.COMMA)) { + columns.push(this.parseColumnRef()); + } + return columns; + } + + private parseColumnRef(): ColumnRef { + const name = this.expect(TokenType.IDENTIFIER).value; + if (this.peek().type === TokenType.DOT) { + this.advance(); + const col = this.expect(TokenType.IDENTIFIER).value; + return { table: name, column: col }; + } + return { column: name }; + } + + // ─── Rename mappings ─────────────────────────────────────── + + private parseRenameMappings(): RenameMapping[] { + const mappings: RenameMapping[] = []; + mappings.push(this.parseRenameMapping()); + while (this.match(TokenType.COMMA)) { + mappings.push(this.parseRenameMapping()); + } + return mappings; + } + + private parseRenameMapping(): RenameMapping { + const from = this.expect(TokenType.IDENTIFIER).value; + this.expect(TokenType.ARROW); + const to = this.expect(TokenType.IDENTIFIER).value; + return { from, to }; + } + + // ─── Group/aggregate spec ────────────────────────────────── + // Format: γ[groupCol1, groupCol2; COUNT(col) AS alias, SUM(col2)] + // The semicolon separates group-by columns from aggregates + + private parseGroupSpec(): { groupBy: ColumnRef[]; aggregates: AggregateExpr[] } { + const groupBy: ColumnRef[] = []; + const aggregates: AggregateExpr[] = []; + + // Parse group-by columns (before semicolon) + if (this.peek().type === TokenType.IDENTIFIER) { + // Check if this is a group-by column or an aggregate function + const saved = this.pos; + const name = this.advance().value; + if (this.peek().type === TokenType.LPAREN) { + // It's an aggregate function, backtrack + this.pos = saved; + } else if (this.peek().type === TokenType.DOT) { + // It's a table.column group-by + this.pos = saved; + groupBy.push(this.parseColumnRef()); + while (this.peek().type === TokenType.COMMA) { + this.advance(); + // Check if next item is aggregate or column + const saved2 = this.pos; + this.expect(TokenType.IDENTIFIER); + if (this.peek().type === TokenType.LPAREN) { + this.pos = saved2; + break; + } + this.pos = saved2; + groupBy.push(this.parseColumnRef()); + } + } else if (this.peek().type === TokenType.SEMICOLON) { + // Single group-by column followed by semicolon + groupBy.push({ column: name }); + this.advance(); // consume semicolon + } else if (this.peek().type === TokenType.COMMA) { + groupBy.push({ column: name }); + while (this.peek().type === TokenType.COMMA) { + this.advance(); + if (this.peek().type === TokenType.IDENTIFIER) { + const saved3 = this.pos; + const nextName = this.advance().value; + if (this.peek().type === TokenType.LPAREN) { + this.pos = saved3; + break; + } + if (this.peek().type === TokenType.SEMICOLON) { + groupBy.push({ column: nextName }); + this.advance(); + break; + } + this.pos = saved3; + groupBy.push(this.parseColumnRef()); + } + } + } else { + groupBy.push({ column: name }); + } + } + + // Handle semicolon separator if not yet consumed + if (this.peek().type === TokenType.SEMICOLON) { + this.advance(); + } + + // Parse aggregates + while (this.peek().type === TokenType.IDENTIFIER) { + const funcName = this.advance().value.toUpperCase(); + this.expect(TokenType.LPAREN); + const col = this.parseColumnRef(); + this.expect(TokenType.RPAREN); + let alias: string | undefined; + // Check for AS alias + if (this.peek().type === TokenType.IDENTIFIER && this.peek().value.toUpperCase() === "AS") { + this.advance(); + alias = this.expect(TokenType.IDENTIFIER).value; + } + aggregates.push({ func: funcName, column: col, alias }); + if (!this.match(TokenType.COMMA)) break; + } + + return { groupBy, aggregates }; + } + + // ─── Sort columns ────────────────────────────────────────── + // Format: τ[col1, col2 DESC] + + private parseSortColumns(): SortColumn[] { + const columns: SortColumn[] = []; + const col = this.parseColumnRef(); + let desc = false; + if (this.peek().type === TokenType.IDENTIFIER && this.peek().value.toUpperCase() === "DESC") { + this.advance(); + desc = true; + } else if (this.peek().type === TokenType.IDENTIFIER && this.peek().value.toUpperCase() === "ASC") { + this.advance(); + } + columns.push({ column: col, desc }); + + while (this.match(TokenType.COMMA)) { + const c = this.parseColumnRef(); + let d = false; + if (this.peek().type === TokenType.IDENTIFIER && this.peek().value.toUpperCase() === "DESC") { + this.advance(); + d = true; + } else if (this.peek().type === TokenType.IDENTIFIER && this.peek().value.toUpperCase() === "ASC") { + this.advance(); + } + columns.push({ column: c, desc: d }); + } + + return columns; + } +} + +// ─── SQL Code Generator ───────────────────────────────────────────────────── + +function conditionToSQL(cond: ConditionNode): string { + switch (cond.type) { + case "comparison": + return `${valueExprToSQL(cond.left)} ${cond.op} ${valueExprToSQL(cond.right)}`; + case "and": + return `(${conditionToSQL(cond.left)} AND ${conditionToSQL(cond.right)})`; + case "or": + return `(${conditionToSQL(cond.left)} OR ${conditionToSQL(cond.right)})`; + case "not": + return `NOT (${conditionToSQL(cond.operand)})`; + } +} + +function valueExprToSQL(expr: ValueExpr): string { + switch (expr.type) { + case "columnRef": + return columnRefToSQL(expr.ref); + case "string": + return `'${expr.value.replace(/'/g, "''")}'`; + case "number": + return expr.value; + case "functionCall": + return `${expr.name}(${expr.args.map(valueExprToSQL).join(", ")})`; + } +} + +function columnRefToSQL(ref: ColumnRef): string { + if (ref.table) { + return `${ref.table}.${ref.column}`; + } + return ref.column; +} + +let subqueryCounter = 0; + +/** Return a SQL alias for a node: use the table name for bare tables, otherwise _raN */ +function aliasFor(node: RANode): string { + return node.type === "table" ? node.name : `_ra${subqueryCounter++}`; +} + +/** + * Resolve the column names produced by a SQL expression using the database. + * Uses db.getColumnNames() which handles both SQLite and PostgreSQL internally. + */ +async function resolveColumns(sql: string, db: DatabaseEngine): Promise { + try { + return await db.getColumnNames(sql); + } catch (e) { + const msg = (e as Error).message || String(e); + if (/no such table/i.test(msg)) { + const match = msg.match(/no such table:\s*(\S+)/i); + throw new RAError(match ? `Table '${match[1]}' does not exist` : msg); + } + if (/does not exist/i.test(msg) || /not found/i.test(msg)) { + throw new RAError(msg); + } + throw new RAError(msg); + } +} +/** Ensure a node produces a full SELECT statement (needed for UNION/INTERSECT/EXCEPT) */ +async function asSelect(node: RANode, db?: DatabaseEngine): Promise { + const sql = await nodeToSQL(node, db); + // Bare table names need wrapping; anything starting with SELECT is already a query + return sql.trimStart().toUpperCase().startsWith("SELECT") ? sql : `SELECT * FROM ${sql}`; +} + +/** + * Build a WHERE clause correlating two aliases on their common columns. + * Returns empty string if no db or no common columns found. + */ +async function buildCorrelation(leftSQL: string, rightSQL: string, lAlias: string, rAlias: string, db?: DatabaseEngine): Promise { + if (!db) return ""; + try { + const leftCols = await resolveColumns(leftSQL, db); + const rightCols = await resolveColumns(rightSQL, db); + const common = leftCols.filter(c => rightCols.includes(c)); + if (common.length > 0) { + return " WHERE " + common.map(c => `${lAlias}.${c} = ${rAlias}.${c}`).join(" AND "); + } + } catch { + // If we can't resolve columns, fall back to uncorrelated + } + return ""; +} + +async function nodeToSQL(node: RANode, db?: DatabaseEngine): Promise { + switch (node.type) { + case "table": + return node.name; + + case "selection": + return `SELECT * FROM (${await nodeToSQL(node.relation, db)}) WHERE ${conditionToSQL(node.condition)}`; + + case "projection": + // Projection (π) follows relational-algebra set semantics: it eliminates duplicate + // tuples. Without DISTINCT, dropping non-key columns would leave SQL bag-duplicates + // that don't exist in RA. δ remains available as an explicit (now usually redundant) + // duplicate-elimination operator. + return `SELECT DISTINCT ${node.columns.map(columnRefToSQL).join(", ")} FROM (${await nodeToSQL(node.relation, db)})`; + + case "rename": { + const inner = await nodeToSQL(node.relation, db); + // Simple case: rename columns + const colMappings = node.mappings.map(m => `${m.from} AS ${m.to}`).join(", "); + return `SELECT ${colMappings} FROM (${inner})`; + } + + case "group": { + const inner = await nodeToSQL(node.relation, db); + const groupCols = node.groupBy.map(columnRefToSQL); + const aggExprs = node.aggregates.map(a => { + const expr = `${a.func}(${columnRefToSQL(a.column)})`; + return a.alias ? `${expr} AS ${a.alias}` : expr; + }); + const selectParts = [...groupCols, ...aggExprs].join(", "); + const groupByClause = groupCols.length > 0 ? ` GROUP BY ${groupCols.join(", ")}` : ""; + return `SELECT ${selectParts} FROM (${inner})${groupByClause}`; + } + + case "sort": { + const inner = await nodeToSQL(node.relation, db); + const orderParts = node.columns.map(c => + `${columnRefToSQL(c.column)}${c.desc ? " DESC" : ""}` + ).join(", "); + return `SELECT * FROM (${inner}) ORDER BY ${orderParts}`; + } + + case "distinct": + return `SELECT DISTINCT * FROM (${await nodeToSQL(node.relation, db)})`; + + case "crossProduct": + return `SELECT * FROM (${await nodeToSQL(node.left, db)}) AS ${aliasFor(node.left)} CROSS JOIN (${await nodeToSQL(node.right, db)}) AS ${aliasFor(node.right)}`; + + case "naturalJoin": { + const leftSQL = await nodeToSQL(node.left, db); + const rightSQL = await nodeToSQL(node.right, db); + if (db) { + const leftCols = await resolveColumns(leftSQL, db); + const rightCols = await resolveColumns(rightSQL, db); + if (leftCols.length > 0 && rightCols.length > 0) { + const common = leftCols.filter(c => rightCols.includes(c)); + if (common.length === 0) { + throw new RAError( + "Natural join has no common columns between the two relations. " + + "Left columns: [" + leftCols.join(", ") + "], Right columns: [" + rightCols.join(", ") + "]. " + + "Use a cross product (×) if a cartesian product is intended, or a theta join (⋈[condition]) to specify the join condition." + ); + } + } + } + return `SELECT * FROM (${leftSQL}) AS ${aliasFor(node.left)} NATURAL JOIN (${rightSQL}) AS ${aliasFor(node.right)}`; + } + + case "thetaJoin": + return `SELECT * FROM (${await nodeToSQL(node.left, db)}) AS ${aliasFor(node.left)} JOIN (${await nodeToSQL(node.right, db)}) AS ${aliasFor(node.right)} ON ${conditionToSQL(node.condition)}`; + + case "leftJoin": + return `SELECT * FROM (${await nodeToSQL(node.left, db)}) AS ${aliasFor(node.left)} LEFT JOIN (${await nodeToSQL(node.right, db)}) AS ${aliasFor(node.right)} ON ${conditionToSQL(node.condition)}`; + + case "rightJoin": + return `SELECT * FROM (${await nodeToSQL(node.left, db)}) AS ${aliasFor(node.left)} RIGHT JOIN (${await nodeToSQL(node.right, db)}) AS ${aliasFor(node.right)} ON ${conditionToSQL(node.condition)}`; + + case "fullJoin": + return `SELECT * FROM (${await nodeToSQL(node.left, db)}) AS ${aliasFor(node.left)} FULL OUTER JOIN (${await nodeToSQL(node.right, db)}) AS ${aliasFor(node.right)} ON ${conditionToSQL(node.condition)}`; + + case "leftSemiJoin": { + const lAlias = `_ra${subqueryCounter++}`; + const rAlias = `_ra${subqueryCounter++}`; + const leftSQL = await nodeToSQL(node.left, db); + const rightSQL = await nodeToSQL(node.right, db); + const corr = await buildCorrelation(leftSQL, rightSQL, lAlias, rAlias, db); + return `SELECT ${lAlias}.* FROM (${leftSQL}) AS ${lAlias} WHERE EXISTS (SELECT 1 FROM (${rightSQL}) AS ${rAlias}${corr})`; + } + + case "rightSemiJoin": { + const lAlias = `_ra${subqueryCounter++}`; + const rAlias = `_ra${subqueryCounter++}`; + const leftSQL = await nodeToSQL(node.left, db); + const rightSQL = await nodeToSQL(node.right, db); + // Outer relation is right; EXISTS checks left — correlate right (outer) with left (inner) + const corr = await buildCorrelation(rightSQL, leftSQL, rAlias, lAlias, db); + return `SELECT ${rAlias}.* FROM (${rightSQL}) AS ${rAlias} WHERE EXISTS (SELECT 1 FROM (${leftSQL}) AS ${lAlias}${corr})`; + } + + case "antiJoin": { + const lAlias = `_ra${subqueryCounter++}`; + const rAlias = `_ra${subqueryCounter++}`; + const leftSQL = await nodeToSQL(node.left, db); + const rightSQL = await nodeToSQL(node.right, db); + const corr = await buildCorrelation(leftSQL, rightSQL, lAlias, rAlias, db); + return `SELECT ${lAlias}.* FROM (${leftSQL}) AS ${lAlias} WHERE NOT EXISTS (SELECT 1 FROM (${rightSQL}) AS ${rAlias}${corr})`; + } + + case "union": + case "intersect": + case "difference": { + const leftSQL = await asSelect(node.left, db); + const rightSQL = await asSelect(node.right, db); + if (db) { + const leftCols = await resolveColumns(leftSQL, db); + const rightCols = await resolveColumns(rightSQL, db); + if (leftCols.length > 0 && rightCols.length > 0 && leftCols.length !== rightCols.length) { + const opName = node.type === "union" ? "Union (∪)" : node.type === "intersect" ? "Intersect (∩)" : "Difference (−)"; + throw new RAError( + `${opName} requires both sides to have the same number of columns. ` + + `Left has ${leftCols.length} column(s): [${leftCols.join(", ")}], ` + + `right has ${rightCols.length} column(s): [${rightCols.join(", ")}].` + ); + } + } + const sqlOp = node.type === "union" ? "UNION" : node.type === "intersect" ? "INTERSECT" : "EXCEPT"; + return `${leftSQL} ${sqlOp} ${rightSQL}`; + } + + case "division": { + const lAlias = `_ra${subqueryCounter++}`; + const rAlias = `_ra${subqueryCounter++}`; + const innerAlias = `_ra${subqueryCounter++}`; + const leftSQL = await nodeToSQL(node.left, db); + const rightSQL = await nodeToSQL(node.right, db); + + if (db) { + try { + const leftCols = await resolveColumns(leftSQL, db); + const rightCols = await resolveColumns(rightSQL, db); + const aOnlyCols = leftCols.filter(c => !rightCols.includes(c)); + const bCols = rightCols; + + if (aOnlyCols.length === 0) { + throw new RAError( + "Division requires the dividend to have columns not present in the divisor. " + + `Left columns: [${leftCols.join(", ")}], Right columns: [${rightCols.join(", ")}].` + ); + } + + const aOnlyMatch = aOnlyCols.map(c => `${innerAlias}.${c} = ${lAlias}.${c}`).join(" AND "); + const bMatch = bCols.map(c => `${innerAlias}.${c} = ${rAlias}.${c}`).join(" AND "); + + const selectCols = aOnlyCols.map(c => `${lAlias}.${c}`).join(", "); + return `SELECT DISTINCT ${selectCols} FROM (${leftSQL}) AS ${lAlias} WHERE NOT EXISTS (SELECT 1 FROM (${rightSQL}) AS ${rAlias} WHERE NOT EXISTS (SELECT 1 FROM (${leftSQL}) AS ${innerAlias} WHERE ${aOnlyMatch} AND ${bMatch}))`; + } catch (e) { + if (e instanceof RAError) throw e; + // Fall through to no-db version + } + } + + // Without db: best-effort uncorrelated version + return `SELECT * FROM (SELECT DISTINCT * FROM (${leftSQL}) AS ${lAlias}) AS ${innerAlias} WHERE NOT EXISTS (SELECT * FROM (${rightSQL}) AS ${rAlias} WHERE NOT EXISTS (SELECT * FROM (${leftSQL}) AS _ra${subqueryCounter++}))`; + } + } +} + +/** + * Rewrite table references in an AST node using a name mapping. + * Used to handle variable reassignment (A <- ...; A <- ...) by pointing + * references to the correct versioned CTE name. + */ +function rewriteTableRefs(node: RANode, nameMap: Record): RANode { + switch (node.type) { + case "table": + return nameMap[node.name] ? { type: "table", name: nameMap[node.name] } : node; + case "selection": + return { ...node, relation: rewriteTableRefs(node.relation, nameMap) }; + case "projection": + return { ...node, relation: rewriteTableRefs(node.relation, nameMap) }; + case "rename": + return { ...node, relation: rewriteTableRefs(node.relation, nameMap) }; + case "group": + return { ...node, relation: rewriteTableRefs(node.relation, nameMap) }; + case "sort": + return { ...node, relation: rewriteTableRefs(node.relation, nameMap) }; + case "distinct": + return { ...node, relation: rewriteTableRefs(node.relation, nameMap) }; + case "crossProduct": + case "naturalJoin": + case "union": + case "intersect": + case "difference": + case "division": + case "leftSemiJoin": + case "rightSemiJoin": + case "antiJoin": + return { ...node, left: rewriteTableRefs(node.left, nameMap), right: rewriteTableRefs(node.right, nameMap) }; + case "thetaJoin": + case "leftJoin": + case "rightJoin": + case "fullJoin": + return { ...node, left: rewriteTableRefs(node.left, nameMap), right: rewriteTableRefs(node.right, nameMap) }; + default: + return node; + } +} + +async function programToSQL(program: RAProgram, db?: DatabaseEngine): Promise { + if (program.assignments.length === 0) { + return await nodeToSQL(program.result, db); + } + + // Use CTEs (WITH clauses) for assignments. + // Handle reassignment (A <- ..., A <- ...) by versioning CTE names + // and rewriting references in subsequent expressions. + const ctes: string[] = []; + // Maps variable name -> current CTE name (may be versioned like A_v2) + const nameMap: Record = {}; + // Track how many times each name has been assigned + const assignCount: Record = {}; + + for (const a of program.assignments) { + if (a.expr.type === "table" && a.expr.name === a.name && !nameMap[a.name]) { + // Self-referential assignment (A <- A) where A is a real table — skip, it's a no-op + continue; + } + + // Rewrite the expression: replace table references with their current CTE aliases + const rewrittenExpr = rewriteTableRefs(a.expr, nameMap); + const sql = await nodeToSQL(rewrittenExpr, db); + const wrappedSQL = /^\w+$/.test(sql) ? `SELECT * FROM ${sql}` : sql; + + // Determine the CTE name for this assignment + assignCount[a.name] = (assignCount[a.name] || 0) + 1; + const cteName = assignCount[a.name] > 1 ? `${a.name}_v${assignCount[a.name]}` : a.name; + nameMap[a.name] = cteName; + + ctes.push(`${cteName} AS (${wrappedSQL})`); + } + + // Rewrite the result expression with final name mappings + const rewrittenResult = rewriteTableRefs(program.result, nameMap); + const resultSQL = await nodeToSQL(rewrittenResult, db); + const wrappedResult = /^\w+$/.test(resultSQL) ? `SELECT * FROM ${resultSQL}` : resultSQL; + + if (ctes.length === 0) { + return wrappedResult; + } + return `WITH ${ctes.join(", ")} ${wrappedResult}`; +} + +// ─── Public API ───────────────────────────────────────────────────────────── + +/** + * Parse a relational algebra expression and transpile it to SQL. + * + * Supported syntax: + * + * **Unary operators** (prefix, with condition/columns in brackets): + * - `σ[condition](R)` or `sigma[condition](R)` — Selection (WHERE) + * - `π[col1, col2](R)` or `pi[col1, col2](R)` — Projection (SELECT) + * - `ρ[old→new](R)` or `rho[old->new](R)` — Rename + * - `γ[groupCol; COUNT(col) AS alias](R)` or `gamma[...]` — Grouping/Aggregation + * - `τ[col DESC](R)` or `tau[col](R)` — Sorting (ORDER BY) + * - `δ(R)` or `delta(R)` — Duplicate elimination (DISTINCT) + * + * **Binary operators** (infix): + * - `R × S` or `R cross S` — Cross product + * - `R ⋈ S` or `R natjoin S` — Natural join + * - `R ⋈[cond] S` or `R join[cond] S` — Theta join + * - `R ⟕[cond] S` or `R leftjoin[cond] S` — Left outer join + * - `R ⟖[cond] S` or `R rightjoin[cond] S` — Right outer join + * - `R ⟗[cond] S` or `R fulljoin[cond] S` — Full outer join + * - `R ⋉ S` or `R leftsemijoin S` — Left semi-join + * - `R ⋊ S` or `R rightsemijoin S` — Right semi-join + * - `R ▷ S` or `R antijoin S` — Anti-join + * - `R ∪ S` or `R union S` — Union + * - `R ∩ S` or `R intersect S` — Intersection + * - `R − S` or `R minus S` — Set difference + * - `R ÷ S` or `R divide S` — Division + * + * **Conditions** support: `=`, `<>`, `!=`, `<`, `>`, `<=`, `>=`, `AND`, `OR`, `NOT` + * + * @param input The relational algebra expression + * @param db Optional database handle for validating natural joins (checks for common columns) + * @returns The equivalent SQL query string + * @throws RAError if the expression cannot be parsed or a natural join has no common columns + */ +export async function raToSQL(input: string, db?: DatabaseEngine): Promise { + subqueryCounter = 0; + const tokens = tokenize(input); + const parser = new Parser(tokens); + const program = parser.parse(); + return await programToSQL(program, db); +} + +// Re-export for potential future use (e.g., AST visualization) +export type { RANode, ConditionNode, ColumnRef }; diff --git a/src/shims/empty.ts b/src/shims/empty.ts new file mode 100644 index 0000000..cf8189b --- /dev/null +++ b/src/shims/empty.ts @@ -0,0 +1,2 @@ +// Empty shim for Node modules that PGLite imports but doesn't use in browser +export default {}; diff --git a/src/useEditorSettings.ts b/src/useEditorSettings.ts new file mode 100644 index 0000000..4f130d6 --- /dev/null +++ b/src/useEditorSettings.ts @@ -0,0 +1,39 @@ +import { useState, useCallback } from "react"; + +export interface EditorSettings { + autocomplete: boolean; + lineNumbers: boolean; + highlightActiveLine: boolean; + tabSize: number; +} + +const STORAGE_KEY = "editorSettings"; + +const DEFAULTS: EditorSettings = { + autocomplete: true, + lineNumbers: false, + highlightActiveLine: true, + tabSize: 2, +}; + +function loadSettings(): EditorSettings { + try { + const raw = localStorage.getItem(STORAGE_KEY); + if (raw) return { ...DEFAULTS, ...JSON.parse(raw) }; + } catch { /* ignore */ } + return { ...DEFAULTS }; +} + +export function useEditorSettings() { + const [settings, setSettingsState] = useState(loadSettings); + + const setSettings = useCallback((partial: Partial) => { + setSettingsState(prev => { + const next = { ...prev, ...partial }; + localStorage.setItem(STORAGE_KEY, JSON.stringify(next)); + return next; + }); + }, []); + + return { settings, setSettings }; +} diff --git a/vite.config.ts b/vite.config.ts index 7a3a673..e06bbaf 100644 --- a/vite.config.ts +++ b/vite.config.ts @@ -3,6 +3,8 @@ import react from "@vitejs/plugin-react"; import { nodePolyfills } from "vite-plugin-node-polyfills"; import path from "path"; +const emptyShim = path.resolve(__dirname, "src/shims/empty.ts"); + // https://vite.dev/config/ export default defineConfig({ plugins: [ @@ -28,6 +30,13 @@ export default defineConfig({ resolve: { alias: { "@": path.resolve(__dirname, "./src"), + // PGLite imports these Node subpaths which polyfill mocks don't support. + // PGLite detects browser environment and doesn't actually use them. + "stream/promises": emptyShim, + "fs/promises": emptyShim, }, }, + optimizeDeps: { + exclude: ["@electric-sql/pglite"], + }, });