[quote=引用 4 楼 yenange 的回复:] select Sname from Student s1 where exists( select 1 from Student s2 where s1.Sdept=s2.Sdept and s1.Sname=N'刘晨' )
select Sname from Student s1 where exists( select 1 from Student s2 where s1.Sdept=s2.Sdept and s1.Sname=N'刘晨' )
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