李棠辉的博客可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题:I have the following MySQL query: SELECT p.*, IF(COUNT(ms.PropertyID) > 0,1,0) AS Contacted, pm....
TheBlindM的博客Unknowncolumn 'ar.tid' in 'on clause' Sql代码 SELECT (c.id, a.id, b.id) FROM A a, B b LEFT JOIN C c ON c.a_id = a.a_id AND c.b_id = b.b_id 这句话执行应该是没有错误的,但是Mysql 5 下执行则会出错。 ...