What is wrong with this code
Hi @User_SYYDG - looks like it's your brackets 🙂 Line 1 is missing its opening ( and line 3 is missing its closing ). Try this:
(@parameter("P_SAAR_ID")('') IS NULL AND SAAR_ID = '99999999')
OR
(@parameter ("P_SAAR_ID")('') IS NOT NULL AND SAAR_ID = @parameter ("P_SAAR_ID")(''))
I've also swapped NOT ... IS NULL for IS NOT NULL, which is cleaner. If it still doesn't behave once it validates, the empty-string default might not be treated as NULL, so you could give the parameter a dummy default like '-1' and test for that instead.
Hope that helps.
That parenthesis Clare mentioned is probably your issue.
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