Case Statement in Where clause with parameters SQL Server CASE statement inclusion and exclusions case statement inside a where clause with 'IN' operator CASE Statement on multiple columns CASE STATEMENT RETURNING MULTIPLE ROWS Case Statement returning multiple values CASE statement returns...
1 Unique constraint on multiple nullable columns Sql Server 1 Should I create a multi-column UNIQUE index? 0 MySQL performance of applying unique constraint single column vs combination column 9 SQL Server equivalent of Oracle USING INDEX clause 2 deteriorating stored procedure running times 1...
TSqlParserToken TSqlScript TSqlStatement TSqlStatementSnippet TSqlTokenType TSqlTriggerEventGroupHelper TSqlTriggerEventTypeHelper UnaryExpression UnaryExpressionType UniqueConstraintDefinition UniqueRowFilter UnpivotedTableReference UnqualifiedJoin UnqualifiedJoinType UpdateCall UpdateDeleteSpecificationBase U...
java代码报错：java.sql.BatchUpdateException: ORA-00001: 违反唯一约束条件 (TTT.table)at oracle.jdbc.driver.DatabaseError.throwBatchUpdateException(DatabaseError.java:629)at oracle.jdbc.driver.OraclePreparedStatement.executeBatch(OraclePreparedStatement.java:9447)at oracle.jdbc.driver.OracleStatement...
Microsoft SQL Server 2008 R2 and Microsoft SQL Server 2012 vary as follows: Transact-SQLpartially supports this feature. Transact-SQL does not support multiple columns on both sides of an assignment. See[ISO/IEC9075-2:2011]for the definition of "column"....
型別:Microsoft.Data.Schema.ScriptDom.Sql.UniqueConstraint 指定的片段型別。 .NET Framework 安全性 完全信任立即呼叫者。這個成員無法供部分信任的程式碼使用。如需詳細資訊,請參閱從部分受信任程式碼使用程式庫。 請參閱 參考 TSqlFragmentVisitor 類別 ...
Feature Computed columns Applies to: SQL Server 2014 (12.x) and SQL Server 2016 (13.x)Computed columns are not supported for memory-optimized tables. Remove the computed columns from the CREATE TABLE statement.Azure SQL Database and SQL Server starting SQL Server 2017 (14.x) do support comp...
Feature Computed columns Applies to: SQL Server 2014 (12.x) and SQL Server 2016 (13.x)Computed columns are not supported for memory-optimized tables. Remove the computed columns from the CREATE TABLE statement.Azure SQL Database and SQL Server starting SQL Server 2017 (14.x) do support comp...
SQL CREATETABLEMyTable ( mycolumnnn1nvarchar, mycolumn2nvarcharCOLLATEFrisian_100_CS_AS )WITH( CLUSTERED COLUMNSTOREINDEX) ; B. 指定列的 DEFAULT 约束 以下示例显示了为列指定默认值的语法。colA列具有名为constraint_colA的默认约束,默认值为0。
Without Feature F641, "Row and table constructors", conforming SQL language shall not contain a <contextually typed row value constructor> that is not simply contained in a <contextually typed table value constructor> and that contains more than one <row value constructor element>. Without ...