常用SQL语句收集
2012-09-29 15:16
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Mysql清除重复记录
DELETE FROM hd_eventmonitor where id not in (select bid from(select min(id) as bid from hd_eventmonitor group byhdsas_id,leverid,eventnum,dt) as b );
待续
来自东子的博客
DELETE FROM hd_eventmonitor where id not in (select bid from(select min(id) as bid from hd_eventmonitor group byhdsas_id,leverid,eventnum,dt) as b );
待续
来自东子的博客