数据库删除数据表重复数据,只留下ID较小的行
删除表中重复数据,留下ID比较小的行
delete from 表 where [重复字段] in (select [重复字段] from 表 group by 字段 having count([字段]) > 1) and ID not in (select min(ID) from [表] group by [字段] having count([字段])> 1)
作者:水蓝的梦
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