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

Don't quite understand, but if you mean the input variables equal zero, you could do something like:

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