从SQL Server查询得不到正确的输出

ALTER PROCEDURE [dbo].[Sp_GetEmailForMailing] 
    -- Add the parameters for the stored procedure here 
    @end int=1000 
AS 
BEGIN 
    -- SET NOCOUNT ON added to prevent extra result sets from 
    -- interfering with SELECT statements. 
    SET NOCOUNT ON; 

    -- Insert statements for procedure here 
    SELECT top(500) RegistrationID, EmailID from dbo.Candidate_RegistrationData 
    where status_flag=1 and payment_status=2 
    and RegistrationID NOT IN (SELECT top(@end) RegistrationID from dbo.Candidate_RegistrationData 
    where status_flag=1 and payment_status=2) order by RegistrationID 
END

这是我的存储过程。在这我想从500行，但我从250行号得到....任何人都知道为什么会发生......谢谢从SQL Server查询得不到正确的输出

来源

2011-06-04 avinash narnaware

你的意思是说，第一@end注册将被跳过？按登记ID升序排序？ – Pankaj 2011-06-04 09:27:25

用作NOT IN的数据源的子查询没有ORDER BY条款。因此，查询引擎可以按照它认为合适的顺序自由选择TOP(@end)行。

来源

2011-06-04 07:57:36

我希望你想跳过顶部@end登记，顺序按RegistrationID

你应该试试下面的代码。

ALTER PROCEDURE [dbo].[Sp_GetEmailForMailing] 

@end int = 1000 

AS 

SET NOCOUNT ON; 

BEGIN 
    Select Top(500) RegistrationID, EmailID From 
    (
     Select Row_Number() Over(Order by RegistrationID) as RowId, 
        RegistrationID,  
        EmailID,  
        status_flag, 
        payment_status 
     From dbo.Candidate_RegistrationData 
     Where status_flag = 1 and payment_status = 2 
    )T 
    Where RowId > @end and status_flag = 1 and payment_status = 2 
    Order By RegistrationID 
End

来源

2011-06-04 09:23:16 Pankaj

从SQL Server查询得不到正确的输出

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