SQL use CASE statement in WHERE IN clause

Question

Is it posible to use case in where in clause? Something like this:

 DECLARE @Status VARCHAR(50);
 SET @Status=\'published\';

 SELECT * FRO         


        

Answer 1

I believe you can use a case statement in a where clause, here is how I do it:

Select 
ProductID
OrderNo,
OrderType,
OrderLineNo
From Order_Detail
Where ProductID in (
Select Case when (@Varibale1 != '') 
then (Select ProductID from Product P Where .......)
Else (Select ProductID from Product)
End as ProductID
)

This method has worked for me time and again. try it!