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原标题:Two table combined selection fail
  • 时间:2012-01-12 08:49:45
  •  标签:
  • sql
  • oracle

两个表A和B都有<代码>id=1111(显示)。 如果我们做到:

select A.* from A where id= 1111 

以及

select B.* from B where id= 1111 

他们都取得了回报。 当我们做时:

select A. * , B. *  from A, B where A.id=B.id 以及 A.id= 1111 

它没有回报。 为什么?

问题回答
select A.* , B.* from A inner join B ON A.id=B.id where A.id= 1111 




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