去重复 - 一个mysql多表，多条件查询去重的问题

Question

有以下这样的mysql查询语句，请问怎么去掉重复数据 $sql="select * from "; {代码...}

阿神 · Answer

Try select distinct *?

高洛峰 · Answer

Duplication removal must be based on a certain condition. For example, uid
does not consider efficiency. You can use distinct(uid) or group by uid
to remove duplicates in Bao subquery

去重复 - 一个mysql多表，多条件查询去重的问题

reply all(2)I'll reply