delete from inner join 的使用

ciyuanlong — Fri, 31 Jul 2009 02:50:00 GMT

以前只用到过update a set a.pwd=b.pwd from a inner join b on a.id=b.id
所以想当然就认为delete from a inner join b on a.id=b.id
就是感觉别扭，gg了一下才知道语法错了
sql server下应该这么写
    delete from a from a inner join b on a.id=b.id

而Access中写为
    delete from a inner join b on a.id=b.id

update 语句也不同
    Access
        update a inner join b on a.id=b.id set a.pwd=b.pwd

   SQL Server
        update a set a.pwd=b.pwd from a inner join b on a.id=b.id

ciyuanlong 2009-07-31 10:50 发表评论

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delete from inner join 的使用