Question

Using a Microsoft version of SQL, here’s my simple query. If I query a record that doesn’t exist then I will get nothing returned. I’d prefer that false (0) is returned in that scenario. Looking for the simplest method to account for no records.

SELECT  CASE
            WHEN S.Id IS NOT NULL AND S.Status = 1 AND (S.WebUserId = @WebUserId OR S.AllowUploads = 1) THEN 1
            ELSE 0
        END AS [Value]

        FROM Sites S

        WHERE S.Id = @SiteId

Answer 1

SELECT CASE WHEN COUNT(1) > 0 THEN 1 ELSE 0 END AS [Value]

FROM Sites S

WHERE S.Id = @SiteId and S.Status = 1 AND 
      (S.WebUserId = @WebUserId OR S.AllowUploads = 1)