بانکهای اطلاعاتی

سلام جداول پایگاه داده : Suppliers(sid,sName,city) , Parts(pId,pName) and dbo.SP(Sid, Pid, QTY dbo.sp shows for example supplier s1, supplies 1000 of part p1 . QTY is the quantity. Query: Which supplier(s), on the whole, supplies the least quantity of parts? My Answer: " select s.sid, s.sName , ...