主題: SQL 的問題
瀏覽單個文章
guliano
Silent Member
 

加入日期: Jan 2005
文章: 0
select A.S_name from Student A join (select S#, count(*) from Take group by S# having count(*) >= 5) B on A.S# = B.S#
舊 2008-05-12, 02:44 PM #18
回應時引用此文章
guliano離線中