http://topic.csdn.net/u/20091008/12/a2577eba-1b5b-4e1e-ab20-0a047bf3f8d7.html?4385
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SQL code:
update a set
ʱ¼ä = b.ʱ¼ä
from tb1 as a
join tb2 as b
on a.¿¨ºÅ= b.¿¨ºÅ
where not exists(select * from tb2
where ¿¨ºÅ=b.¿¨ºÅ and ʱ¼ä> b.ʱ¼ä)
3 ......
±íA
¿¨ºÅ ʱ¼ä
1 null
2 null
3 null
±íB
¿¨ºÅ &n ......
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http://wenda.tianya.cn/wenda/thread?tid=008e40988f9b74c0
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FULL JOIN
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SELECT ISNULL(A.feename,B.feename)feename,ISNULL(A.money,0)-ISNULL( ......
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month
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2
3
4
5
6
7
8
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10
11
12
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SQL code:
select top 12 month=identity(int,1,1) into #t from sysobjects
select * from #t
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http://topic.csdn.net/u/20090906/17/a91cd31e-abf7-4190-8486-c5491aa63c71 ......