SELECT * FROM Course C LEFT JOIN Course_Prerequisites cp ON C.Id = cp.Course_FK WHERE Prerequisite_FK IN (SELECT Prerequisites.Id FROM Prerequisites Where Name = 'Art' OR Name = etc etc) NOT EXISTS (SELECT * FROM Course C LEFT JOIN Course_Prerequisites cp ON C.Id = cp.Course_FK WHERE Prerequisite_FK NOT IN (SELECT Prerequisites.Id FROM Prerequisites Where Name = 'Art' OR Name = etc etc))