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在我的应用程序中,有发布者和类别。一个发布者可以属于几个类别。当我创建我的mysql事务时,它将为它所属的每个类别返回相同的发布者记录。这里的查询:从mysql查询获取不同记录
SELECT grdirect_publisher.name, grdirect_publisher.short_description, grdirect_publisher.thumb_image, grdirect_publisher.url, grdirect_category.name AS catname FROM grdirect_publisher JOIN grdirect_publisher_categories ON grdirect_publisher.id = grdirect_publisher_categories.publisher_id JOIN grdirect_category ON grdirect_publisher_categories.category_id = grdirect_category.id
回报:
从本质上讲,富应该只在结果中显示一次。
如果你想Foo只出现一次,你想看哪个名字:视频游戏或音乐? – 2008-11-08 08:31:08