剔除重复的记录
日期：2014-05-16 浏览次数：20386 次
删除重复的记录
delete from ucs_projectno_pms
where uniqueid in (select uniqueid from ucs_projectno_pms group by uniqueid having count(uniqueid) > 1)
and rowid not in (select min(rowid) from ucs_projectno_pms group by uniqueid having count(uniqueid )>1)
delete from ucs_projectno_pms
where uniqueid in (select uniqueid from ucs_projectno_pms group by uniqueid having count(uniqueid) > 1)
and rowid not in (select min(rowid) from ucs_projectno_pms group by uniqueid having count(uniqueid )>1)
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