SQL Server 2008中SQL应用系列--目录索引
SQL Server 2008中新增功能:可以使用单个Insert命令插入多行。
Create table Demo_Values (PKID int not null identity(1,1) primary key ,DName Nvarchar(20) null ,DCode NVarchar(30) null ,DDate datetime null ) go --this SQL is only for SQL Server 2008 Insert into Demo_Values (DName,DCode,DDate) values ('DemoA','AAA',GETDATE()), ('DemoB','BBB',GETDATE()), ('DemoC','CCC',GETDATE()), ('DemoD','DDD',GETDATE()), ('DemoE','EEE',GETDATE()) --(5 row(s) affected)
除了可以一次性插入多行,values还有更巧妙的用法,不使用永久表或临时表而表示一个结果集,而且不需要函数或表变量。看下面的例子:
--this SQL is only for SQL Server 2008 select DName,DCode,DDate from (values ('DemoA','AAA',GETDATE()), ('DemoB','BBB',GETDATE()), ('DemoC','CCC',GETDATE()), ('DemoD','DDD',GETDATE()), ('DemoE','EEE',GETDATE()) ) Demo_Values (DName,DCode,DDate) --(5 row(s) affected) /* DName DCode DDate DemoA AAA 2010-10-12 20:37:45.500 DemoB BBB 2010-10-12 20:37:45.500 DemoC CCC 2010-10-12 20:37:45.500 DemoD DDD 2010-10-12 20:37:45.500 DemoE EEE 2010-10-12 20:37:45.500 */
注意该语句的最后一行定义了“源”名称和列名,其中列名用于select语句。