Update XXX set XXX where 这种写法大家肯定都知道，才发现update和delete居然支持inner join的update方式，太神奇了。分享段示例代码：
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update tb_User
set pass=‘‘
from tb_User usr
inner join tb_Address addr on usr.nAddressFK = addr.nAddressID
where usr.id=123
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update的格式是
update t1 set t1.name=’Liu’ from t1 inner join t2 on t1.id = t2.tid
delete 语句也是类似
delete from t1 from t1 inner join t2 on t1.id = t2.tid
注意蓝色部分。