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±ísong£º
songID£¬songName£¬singerID
1£¬ÍüÇéË®£¬1
2£¬ÖйúÈË£¬1
3£¬ÎDZð£¬2
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1.Á½±íÁ¬½Ó
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select song.songName
from song,singer
where song.singerID = singer.singerID
and singer.singerName = 'ÁõµÂ»ª'

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SQL code:

select songName
from song
where singerID = (select singerID from singer where singerName = 'ÁõµÂ»ª')


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select * from icstockbillentry
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---------------
--²âÊÔjoin·½°¸ÓÃʱ
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declare @d datetime
set @d=getdate()
select b.fnote
from icstockbill a,icstockbillentry b
where a.finterid=b.


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