试题二
① NOT EXISTS
② NOT EXISTS
③ STUDENT.SNO=S-C.SNO AND COURSE.CNO=S-C.CNO
④ COUNT(*)
⑤ SNO,AVG(GRADE)
⑥ SNO,COUNT(CNO)
试题七
(1)Dim k As Integer
(2)Next I
(3)Int(i/5)=i/5
(4)b(i)>b(j)
(5)Next I