SqlServer 删除重复记录
--删除重复的记录
delete from table1
--根据Uid号获取重复的记录
where uid in (select uid from table1 group by uid having count(uid) > 1)
--排除保留最新的ID号,其他的删除
and id not in (select max(id) from table1 group by uid having count(uid )>1)
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