diff --git a/SQL/SqlCreate.cs b/SQL/SqlCreate.cs
index 1d71509e..657c230a 100644
--- a/SQL/SqlCreate.cs
+++ b/SQL/SqlCreate.cs
@@ -13,13 +13,13 @@
 namespace CYQ.Data.SQL
 {
     /// <summary>
-    /// ���ݲ��������
+    /// 数据操作语句类
     /// </summary>
     internal partial class SqlCreate
     {
         private static List<string> _autoIDItems = new List<string>();
         /// <summary>
-        /// oracle��������
+        /// oracle序列名称
         /// </summary>
         public string AutoID
         {
@@ -28,7 +28,7 @@ public string AutoID
                 string key = string.Format(AppConfig.DB.AutoID, TableName);
                 if (!_autoIDItems.Contains(key))
                 {
-                    //��Ⲣ�Զ�������
+                    //检测并自动创建。
                     Tool.DBTool.CheckAndCreateOracleSequence(key, _action.dalHelper.conn, _action.Data.PrimaryCell.ColumnName, TableName);
                     _autoIDItems.Add(key);
                 }
@@ -36,15 +36,15 @@ public string AutoID
             }
         }
         /// <summary>
-        /// �Ƿ�����ִ��SQL����������Insert��Update��Ч�����SQL�﷨������ܾ�ִ�У�
+        /// 是否允许执行SQL操作（仅对Insert和Update有效；如果SQL语法错误，则拒绝执行）
         /// </summary>
         internal bool isCanDo = true;
         /// <summary>
-        /// ���²����ĸ��ӱ���ʽ��
+        /// 更新操作的附加表达式。
         /// </summary>
         internal string updateExpression = null;
         /// <summary>
-        /// ָ����ѯ���С�
+        /// 指定查询的列。
         /// </summary>
         internal object[] selectColumns = null;
         private string TableName
@@ -60,8 +60,8 @@ public SqlCreate(MAction action)
             _action = action;
         }
 
-        #region ���Sql���
-        #region SQL��䴦��
+        #region 组合Sql语句
+        #region SQL语句处理
         internal string GetDeleteToUpdateSql(object whereObj)
         {
             string editTime = GetEditTimeSql();
@@ -78,7 +78,7 @@ private string GetEditTimeSql()
                     {
                         if (_action.Data.Columns.Contains(item) && (_action.Data[item].IsNullOrEmpty || _action.Data[item].State < 2))
                         {
-                            return item + "='" + DateTime.Now + "',";//������ڸ�����
+                            return item + "='" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + "',";//如果存在更新列
                         }
                     }
                 }
@@ -90,9 +90,9 @@ internal string GetDeleteSql(object whereObj)
             return "delete from " + TableName + " where " + FormatWhere(whereObj);
         }
         /// <summary>
-        /// ���ز�����ַ���
+        /// 返回插入的字符串
         /// </summary>
-        /// <returns>�����:insert into tableName(ID,Name,Value) values(@ID,@Name,@Value)</returns>
+        /// <returns>结果如:insert into tableName(ID,Name,Value) values(@ID,@Name,@Value)</returns>
         internal string GetInsertSql()
         {
             isCanDo = false;
@@ -104,7 +104,7 @@ internal string GetInsertSql()
             int groupID = DataType.GetGroup(primaryCell.Struct.SqlType);
             string defaultValue = Convert.ToString(primaryCell.Struct.DefaultValue);
             if (primaryCell.IsNullOrEmpty && (groupID == 4 || (groupID == 0 && (primaryCell.Struct.MaxSize <= 0 || primaryCell.Struct.MaxSize >= 36) &&
-                (defaultValue == "" || defaultValue == "newid" || defaultValue == SqlValue.Guid))))//guid����
+                (defaultValue == "" || defaultValue == "newid" || defaultValue == SqlValue.Guid))))//guid类型
             {
                 primaryCell.Value = Guid.NewGuid();
             }
@@ -114,7 +114,7 @@ internal string GetInsertSql()
                 cell = _action.Data[i];
                 if (cell.Struct.IsAutoIncrement && !_action.AllowInsertID)
                 {
-                    continue;//����������
+                    continue;//跳过自增列。
                 }
                 if (cell.IsNull && !cell.Struct.IsCanNull && cell.Struct.DefaultValue == null)
                 {
@@ -168,12 +168,12 @@ internal string GetInsertSql()
                     {
                         sql += string.Format(" select '{0}' as OutPutValue", primaryCell.Value);
                     }
-                    if (_action.AllowInsertID && !_action.dalHelper.isOpenTrans && primaryCell.Struct.IsAutoIncrement)//����������ʱ
+                    if (_action.AllowInsertID && !_action.dalHelper.isOpenTrans && primaryCell.Struct.IsAutoIncrement)//非批量操作时
                     {
                         sql = "set identity_insert " + SqlFormat.Keyword(TableName, _action.dalHelper.dalType) + " on " + sql + " set identity_insert " + SqlFormat.Keyword(TableName, _action.dalHelper.dalType) + " off";
                     }
                     break;
-                //if (!(Parent.AllowInsertID && !primaryCell.IsNull)) // �������в���ID�ģ����������������Զ�����ID��
+                //if (!(Parent.AllowInsertID && !primaryCell.IsNull)) // 对于自行插入ID的，跳过，主操作会自动返回ID。
                 //{
                 //    sql += ((groupID == 1 && (primaryCell.IsNull || primaryCell.ToString() == "0")) ? " select cast(scope_Identity() as int) as OutPutValue" : string.Format(" select '{0}' as OutPutValue", primaryCell.Value));
                 //}
@@ -184,9 +184,9 @@ internal string GetInsertSql()
             return sql;
         }
         /// <summary>
-        /// ���ز�����Where�������ַ���
+        /// 返回不包括Where条件的字符串
         /// </summary>
-        /// <returns>�����:Update tableName set Name=@Name,Value=@Value</returns>
+        /// <returns>结果如:Update tableName set Name=@Name,Value=@Value</returns>
         internal string GetUpdateSql(object whereObj)
         {
             isCanDo = false;
@@ -195,13 +195,13 @@ internal string GetUpdateSql(object whereObj)
             if (!string.IsNullOrEmpty(updateExpression))
             {
                 _TempSql.Append(SqlCompatible.Format(updateExpression, _action.DalType) + ",");
-                updateExpression = null;//ȡ��ֵ�����ֵ��
+                updateExpression = null;//取完值后清除值。
                 isCanDo = true;
             }
-            string editTime = GetEditTimeSql();//�ڲ��жϸ��ֶ�û��ֵ�Ż���¡�
+            string editTime = GetEditTimeSql();//内部判断该字段没有值才会更新。
             if (!string.IsNullOrEmpty(editTime))
             {
-                _TempSql.Append(editTime);//�Դ�β,��
+                _TempSql.Append(editTime);//自带尾,号
             }
             MDataCell cell = null;
             for (int i = 0; i < _action.Data.Count; i++)
@@ -209,21 +209,21 @@ internal string GetUpdateSql(object whereObj)
                 cell = _action.Data[i];
                 if (cell.Struct.IsPrimaryKey || cell.Struct.IsAutoIncrement)
                 {
-                    continue;//����������������
+                    continue;//跳过自增或主键列。
                 }
 
                 if (cell.CellValue.State > 1 && (cell.Struct.IsCanNull || !cell.IsNull))
                 {
                     if (cell.Struct.SqlType == SqlDbType.Timestamp && (_action.DalType == DalType.MsSql || _action.DalType == DalType.Sybase))
                     {
-                        //����ʱ������������¡�
+                        //更新时间戳不允许更新。
                         continue;
                     }
                     object value = cell.Value;
                     DbType dbType = DataType.GetDbType(cell.Struct.SqlType.ToString(), _action.DalType);
                     if (_action.DalType == DalType.Oracle && dbType == DbType.String && cell.strValue == "" && !cell.Struct.IsCanNull)
                     {
-                        value = " ";//Oracle not null �ֶΣ����������ÿ�ֵ��
+                        value = " ";//Oracle not null 字段，不允许设置空值。
                     }
 
                     _action.dalHelper.AddParameters(_action.dalHelper.Pre + cell.ColumnName, value, dbType, cell.Struct.MaxSize, ParameterDirection.Input);
@@ -322,7 +322,7 @@ internal string GetSelectTableName(ref string where)
             {
                 tName = tName.Substring(0, i + 1);
             }
-            if (selectColumns == null || selectColumns.Length == 0)//û��ָ��Ҫ��ϲ�ѯ��
+            if (selectColumns == null || selectColumns.Length == 0)//没有指定要组合查询。
             {
                 return SqlFormat.Keyword(tName, _action.DalType);
             }
@@ -332,7 +332,7 @@ internal string GetSelectTableName(ref string where)
                 int orderbyIndex = where.ToLower().IndexOf("order by");
                 if (orderbyIndex > -1)
                 {
-                    whereOnly = " where " + where.Substring(0, orderbyIndex - 1);//-1��ȥ���ո�
+                    whereOnly = " where " + where.Substring(0, orderbyIndex - 1);//-1是去掉空格
                     where = "1=1 " + where.Substring(orderbyIndex);
                 }
                 else
@@ -343,7 +343,7 @@ internal string GetSelectTableName(ref string where)
                 whereOnly = SqlFormat.RemoveWhereOneEqualsOne(whereOnly);
             }
             string sql = "(select " + GetColumnsSql() + " from " + TableName + " " + whereOnly + ") v";
-            //if (_action.DalType != DalType.Oracle) // Oracle ȡ���˴洢���̡�
+            //if (_action.DalType != DalType.Oracle) // Oracle 取消了存储过程。
             //{
             //    sql += "v";
             //}
@@ -368,7 +368,7 @@ internal string GetColumnsSql()
                 }
                 else
                 {
-                    int i = _action.Data.Columns.GetIndex(columnName);//�����ֶ�ӳ��
+                    int i = _action.Data.Columns.GetIndex(columnName);//兼容字段映射
                     if (i > -1)
                     {
                         v_Columns += SqlFormat.Keyword(_action.Data.Columns[i].ColumnName, _action.dalHelper.dalType) + ",";
@@ -386,7 +386,7 @@ internal string GetColumnsSql()
             return v_Columns.TrimEnd(',');
         }
         /// <summary>
-        /// ��ȡ������ϵ�Where������
+        /// 获取主键组合的Where条件。
         /// </summary>
         /// <returns></returns>
         internal string GetPrimaryWhere()
@@ -394,7 +394,7 @@ internal string GetPrimaryWhere()
             return GetWhere(_action.DalType, _action.Data.JointPrimaryCell);
         }
         #endregion
-        #region ���ú���
+        #region 共用函数
 
         internal string AddOrderByWithCheck(string where, string primaryKey)
         {
@@ -448,7 +448,7 @@ private string GetWhereFromObj(object whereObj)
             string where = string.Empty;
             if (cell != null)
             {
-                #region �ӵ�Ԫ����ȡֵ��
+                #region 从单元格里取值。
                 if (cell.IsNullOrEmpty)
                 {
                     isCanDo = false;
@@ -511,7 +511,7 @@ internal static string FormatWhere(string where, MDataColumn mdc, DalType dalTyp
             {
                 if (mdc.JointPrimary.Count > 1 && where.Contains(";"))
                 {
-                    #region �������
+                    #region 多个主键
                     StringBuilder sb = new StringBuilder();
                     string[] items = where.Split(',');
                     MDataRow row = mdc.ToRow("row");
@@ -545,15 +545,15 @@ internal static string FormatWhere(string where, MDataColumn mdc, DalType dalTyp
                 }
                 else
                 {
-                    #region ��������
+                    #region 单个主键
 
                     MCellStruct ms = mdc.FirstPrimary;
 
                     string[] items = where.Split(',');
                     if (items.Length == 1)
                     {
-                        //ֻ��������ֵ�����
-                        int primaryGroupID = DataType.GetGroup(ms.SqlType);//����ƥ������
+                        //只处理单个值的情况
+                        int primaryGroupID = DataType.GetGroup(ms.SqlType);//优先匹配主键
                         switch (primaryGroupID)
                         {
                             case 4:
@@ -608,7 +608,7 @@ private static string GetWhereEqual(int groupID, string columnName, string where
             {
                 where = where.Trim('\'');
             }
-            if (groupID == 1)//int ���͵ģ�������Ϊbit�͡�
+            if (groupID == 1)//int 类型的，主键不为bit型。
             {
                 where = columnName + "=" + where;
             }
@@ -619,10 +619,10 @@ private static string GetWhereEqual(int groupID, string columnName, string where
 
                     switch (dalType)
                     {
-                        case DalType.Access:// Access��GUID���͵ĸ��£����������������
+                        case DalType.Access:// Access的GUID类型的更新，必须带｛｝包含。
                             where = "{" + where.Trim('{', '}') + "}";
                             break;
-                        case DalType.SQLite://SQLite ��16�ֽڴ洢����Ҫת�����ܲ�ѯ��
+                        case DalType.SQLite://SQLite 以16字节存储，需要转换才能查询。
                             return columnName + "=x'" + StaticTool.ToGuidByteString(where) + "'";
                     }
                 }
@@ -652,7 +652,7 @@ internal static string AddOrderBy(string where, string primaryKey)
             }
             else if (where.IndexOf(" asc", StringComparison.OrdinalIgnoreCase) == -1 && where.IndexOf(" desc", StringComparison.OrdinalIgnoreCase) == -1)
             {
-                //��order by ��û asc
+                //有order by 但没 asc
                 where += " asc";
             }
             return where;
@@ -662,7 +662,7 @@ internal static string GetWhere(DalType dalType, List<MDataCell> cells)
             return GetWhere(dalType, true, cells);
         }
         /// <summary>
-        /// ����Ԫ���������where������
+        /// 根据元数据列组合where条件。
         /// </summary>
         /// <returns></returns>
         internal static string GetWhere(DalType dalType, bool isAnd, List<MDataCell> cells)
@@ -708,7 +708,7 @@ internal static string GetWhere(DalType dalType, bool isAnd, List<MDataCell> cel
                                 where += columnName + "='" + guid + "'";
                             }
                         }
-                        else if (groupID == 2 && dalType == DalType.Oracle) // Oracle������ʱ��Ҫת����
+                        else if (groupID == 2 && dalType == DalType.Oracle) // Oracle的日期时间要转类型
                         {
                             if (cell.Struct.SqlType == SqlDbType.Timestamp)
                             {
@@ -747,11 +747,11 @@ internal static string GetWhereIn(MCellStruct ms, List<string> items, DalType da
                 item = items[i];
                 if (groupID != 0)
                 {
-                    item = item.Trim('\'');//������ĸ������ȥ���ֺ�
+                    item = item.Trim('\'');//不是字母都尝试去掉分号
                 }
-                if (dalType == DalType.Oracle && i > 999 && i % 1000 == 0)//oracle �б��е���������Ϊ1000
+                if (dalType == DalType.Oracle && i > 999 && i % 1000 == 0)//oracle 列表中的最大表达数为1000
                 {
-                    sb.Remove(sb.Length - 1, 1);//�Ƴ����һ��,�š�
+                    sb.Remove(sb.Length - 1, 1);//移除最后一个,号。
                     sb.Append(") or " + SqlFormat.Keyword(ms.ColumnName, dalType) + " In (");
                 }
                 if (!string.IsNullOrEmpty(item))
@@ -792,7 +792,7 @@ internal static string GetWhereIn(MCellStruct ms, List<string> items, DalType da
         internal static string OracleSqlIDR = " userid={0} control='{1}'";//sqlldr   
         internal static string TruncateTable = "truncate table {0}";
         /// <summary>
-        /// ������������������
+        /// 获得批量导入的列名。
         /// </summary>
         /// <param name="mdc"></param>
         /// <param name="keepID"></param>
@@ -811,7 +811,7 @@ internal static string GetColumnName(MDataColumn mdc, bool keepID, DalType dalTy
                 sb.Append(SqlFormat.Keyword(ms.ColumnName, dalType));
                 if (dalType == DalType.Oracle && DataType.GetGroup(ms.SqlType) == 2)
                 {
-                    //����
+                    //日期
                     sb.Append(" DATE \"YYYY-MM-DD HH24:MI:SS\" NULLIF (" + ms.ColumnName + "=\"NULL\")");
                 }
                 sb.Append(",");