摘要:
习题select s#,score from sc where c#=2select s.s#,s.sname from s,sc where s.s#=sc.s# and c#=2select distinct s.s#,s.sname from s,sc,c,t ... 阅读全文
posted @ 2010-12-30 11:02
饺子吃遍天
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摘要:
习题select s#,score from sc where c#=2select s.s#,s.sname from s,sc where s.s#=sc.s# and c#=2select distinct s.s#,s.sname from s,sc,c,t ... 阅读全文
posted @ 2010-12-30 11:02
饺子吃遍天
阅读(143)
评论(0)
推荐(0)

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