IF ELSE Statement in SQL

Question

SELECT S.Id, S.Name, S.Version, S.SoftNo
FROM SOFTWARE S WITH(NOLOCK)
WHERE (IF S.Version = 0 THEN S.Version > 0 ELSE S.Version = @Version)
AND (IF S.SoftNo = 0 THEN          


        

Answer 1

Try something like this:

SELECT S.Id, S.Name, S.Version, S.SoftNo
FROM SOFTWARE S WITH(NOLOCK)
WHERE ((@Version = 0 AND S.Version > 0) OR 
       (@Version <> 0 AND S.Version = @Version)) AND 
      ((@SoftNo = 0 AND S.SoftNo > 0) OR 
       (@SoftNo <> 0 AND S.SoftNo = @SoftNo))