oracle 多表内连外连用法
oracle中join on 多表外连,内连,外连
比如
select * from A a left join B b on a.xxxx=b.xxx left join C c on a.xxxxxx=c.xxxxx left join D d on a.xxx=d.xx
select * from A a left outer join B b on a.xxxx=b.xxx left join C c on a.xxxxxx=c.xxxxx left join D d on a.xxx=d.xx
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转载自jbeduhai.iteye.com/blog/2119385
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