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group by跟where的用法

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Release： 2016-06-13 12:57:51
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group by和where的用法
select * from peizhi where tag=$row[tag] group by brand

这样写是错的。实现的是把以tag为条件把相同里面brand信息给取出来，并且是通过group by的方式取出来brand
------解决方案--------------------
select * from peizhi where tag=$row['tag'] group by brand

Related labels：
nbsp tag where
source：php.cn
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