问题描述
DECLARE @a int;
DECLARE @b int;
SELECT @a = StartNum, @b = EndNum
FROM Users
WHERE UserId = '1223'
解决方法
我想做这个:
Declare @a int;
Declare @b int;
SET @a,@b = (SELECT StartNum,EndNum FROM Users Where UserId = '1223')
PRINT @a
PRINT @b
但这是无效的语法。如何在一个select语句中设置多个标量变量?我可以:
Declare @a int;
Declare @b int;
SET @a = (SELECT StartNum FROM Users Where UserId = '1223')
SET @b = (SELECT EndNum FROM Users Where UserId = '1223')
PRINT @a
PRINT @b
但这将花费两倍的时间。最快的方法是什么?