Question

可以为从exec @sql？：

返回的变量赋值

set @var= exec calculate 'param' are this true

Answer 1

DECLARE @ret INT
DECLARE @output INT

EXEC @ret = [proc] @input, @output OUTPUT

SELECT @ret, @output

@ret是返回值：RETURN -1
@output是任意类型的可分配变量：SET @output = 123

Answer 2

您应该使用存储过程的输出参数：

DECLARE @output1 INT
EXEC [proc] @input, @output1 OUTPUT

PRINT @output1

Answer 3

函数是执行常用计算的好地方。

CREATE FUNCTION dbo.ufnAddIntegers
    (@pint1 as int, @pint2 as int)
RETURNS int
AS
BEGIN
   return @pint1 + @pint2
END
go

declare @intResult int
set @intResult = dbo.ufnAddIntegers(3, 4)
select Result = @intResult

/*
Result
-----------
7
*/

在SQL exec中为变量赋值

3 个答案: