Question

我在我的存储过程中使用“Set RowCount”。我有一个问题，Set RowCount的范围是什么？考虑以下SP

 CREATE PROC Test
    AS 
        BEGIN

            SET ROWCOUNT 10
            ...........

            SET ROWCOUNT 0

        END


CREATE PROC Test2
AS 
    BEGIN


        ...........

        SET ROWCOUNT 0

    END


CREATE PROC Test3
AS 
    BEGIN

        SET ROWCOUNT 10
        ...........


    END


CREATE PROC Test4
AS 
    BEGIN

        SET ROWCOUNT 10
        SET ROWCOUNT 5
        ...........
        SET ROWCOUNT 0      

    END

现在在上面的SP中，你必须看到我有不匹配的SetRowcount语句。所以我的问题是，如果我忘记将“Set RowCount 0”添加到我的开头“Set RowCount N”语句中。有必要吗？它会影响我申请中其他SP的执行吗？

Answer 1

与accepted answer in the question linked to in the comments相反，据我所知，此范围规则与#temp表可见性的范围规则完全相同。它传播到子批次，但是当批次退出时，它会重置为之前的值。

CREATE PROC #bar
AS
SELECT * FROM sys.objects
EXEC ('SELECT * FROM sys.objects')
GO

CREATE PROC #foo
AS
SET ROWCOUNT 1

EXEC #bar
GO

SET ROWCOUNT 4
EXEC #foo /*Returns 2 resultsets with 1 row*/
EXEC #bar /*Returns 2 resultsets with 4 rows*/

DROP PROC #foo
DROP PROC #bar

SQL中“设置行数”的范围

1 个答案: