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sql多表关联查询语句

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2016-06-07 17:48:301737browse

本文章来告诉你在mssql server中的多表联合查询效果,有需要的朋友可以参考一下。

#temptest1                 #temptest2

   

实现方法如下:

 代码如下 复制代码

Update t1

Set t1 .age = t2.age

From  #temptest1 t1

Join #temptest2 t2

On  t1.id = t2.id

 

(补充)Sql Server 2008 Merge命令写法:

merge into #temptest1 t1
using( age,id from #temptest2) t2
on t1.id = t2.id
when matched then
update set t1.age = t2.age

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