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Asked: 2026-06-11T00:48:28+00:00

The actual result of the following Query is NULL select semid from programvariantterm where

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The actual result of the following Query is NULL

select semid from programvariantterm where programvariantid = 240

But when I try the following statement, it gives 0 rows:

declare @semid int
set @semid = -1
select semid from programvariantterm 
where programvariantid = 240 and semid = nullif(@semid,-1)
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1 Answer

  1. Editorial Team

    I think you’re confusing NULLIF and ISNULL a little bit.

    Your statement would work with the following ISNULL:

    where programvariantid = 240 and @semid = ISNULL(semid,-1)
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