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mysql 3个表查询。

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Release： 2016-06-20 12:44:02
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第一个表
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、 

第二个表
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第三个表
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、

、
第一个第二个表中的id与第三个表中的fid是关联的。 我想根据第三个表中的fid查询出第一表中的title, description,cover_id  与第二个表中的peice , isbn ,publisher。请问这要怎么写？我有用join查询写过，可是只查询出了一半的结果。


回复讨论(解决方案)

select * from 表三 a left join 表一 b on a.fid=b.id left join 表二 c on a.fit=c.id where a.fid=$fid

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