20149 月29
MySQL:not in 语句优化
select a.*
from wx_nickname a
left join (select distinct nickname_id from wx_group_nickname )b on
a.id = b.nickname_id
where b.nickname_id is null
本文地址:https://wizzer.cn/archives/3046 , 转载请保留.
select a.*
from wx_nickname a
left join (select distinct nickname_id from wx_group_nickname )b on
a.id = b.nickname_id
where b.nickname_id is null
本文地址:https://wizzer.cn/archives/3046 , 转载请保留.