从SQL Server 2017 (14.x) 开始,本机编译 T-SQL 模块已支持 CASE 语句。 SELECT 子句: 列名和别名(使用 AS 或 = 语法)。 标量子查询 适用于: SQL Server 2016 (13.x)。从 SQL Server 2016 (13.x) 开始,本机编译模块已支持标量子查询。
Alternative for OR in WHERE clause Alternative for PIVOT Alternative of CURSOR in SQL to improve performance ? alternative query for in clause Alternative to Full Outer Join Alternative to Row_Number Query Alternative way STUFF for XML PATH ('') ? Am getting an error when i run this code Amb...
AI代码解释 --排名可能间断(同值同排名)RANK()OVER([<partition_by_clause>]<order_by_clause>)--排名中没有任何间断 (同值同排名)DENSE_RANK()OVER([<partition_by_clause>]<order_by_clause>)--将有序分区中的行分发到指定数目(integer_expression)的组中。NTILE(integer_expression)OVER([<partition_by...
OPENXML <openxml_clause> 適用於:SQL Server 和 SQL Database。 透過XML 文件提供資料列集的檢視。 如需詳細資訊,請參閱 OPENXML (Transact-SQL)。 derived_table 從資料庫中擷取資料列的子查詢。 derived_table可用來作為外部查詢的輸入。 derived_table 可以使用 Transact-SQL 資料表值建構函式功能來指定多個...
The SET HADR clause of the ALTER DATABASE statement Backup Azure SQL Managed Instance has automatic backups, so users can create full database COPY_ONLY backups. Differential, log, and file snapshot backups aren't supported. With a SQL Managed Instance, you can back up an instance databa...
For more information about supported built-in functions, seeSupported Features for Natively Compiled T-SQL Modules, orNatively Compiled Stored Procedures. Feature CASE Applies to: SQL Server 2014 (12.x) and SQL Server starting SQL Server 2016 (13.x)CASE expressions are not supported in queries ...
Another T-SQL enhancement in Yukon allows you to return output from Data Manipulation Language (DML) statements other than SELECT (INSERT, UPDATE, DELETE). A new OUTPUT clause allows you to request that the old/new images of the columns be returned by referring to the INSERTED and DELETED ta...
MySQL语法问题:Youcan‘tspecify targettable‘xxx‘ for update in FROM clause. 原因及解决方法 报错信息如下: [Code: 1093, SQL State: HY000] Youcan’tspecify targettable‘bd_bankaccbas’ for update in...有问题的 SQL 语句如下,它在 oracle 数据库的语法是支持的,但是mysql就不支持直接这么写: from...
Subclause 11.26, "<drop table constraint definition>": <drop table constraint definition> ::= DROP CONSTRAINT <constraint name> <drop behavior> ... Conformance Rules Without Feature F381, "Extended schema manipulation", conforming SQL language shall not contain a <drop table constraint defi...
TSqlTriggerEventTypeHelper UnaryExpression UnaryExpressionType UniqueConstraintDefinition UniqueRowFilter UnpivotedTableReference UnqualifiedJoin UnqualifiedJoinType UpdateCall UpdateDeleteSpecificationBase UpdateForClause UpdateMergeAction UpdateSpecification UpdateStatement UpdateStatisticsStatement UpdateTextStatement UseFederat...