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troubleshooting Question

Dynamic SQL - with coalesce

Avatar of akoIT
akoIT asked on
SQL
14 Comments1 Solution798 ViewsLast Modified:
Hi Expert,

Please help me find out the best solution for my query. I have dynamic sql with coalesce in where clause but it did not function well.

SET @sql = 'SELECT * FROM tbl1 WHERE ID = COALESCE(''' + @ID + ''', ID)'
EXEC(@sql)

and when I run this SP and i call

Exec sp_GetID @ID  = null,

it did not return a value.

But when i tried something like this

SELECT * FROM tbl1 WHERE ID = COALESCE(@ID , ID)

it works fine as expected.
ASKER CERTIFIED SOLUTION
Avatar of ste5an
ste5anFlag of Germany imageSenior Developer

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