摘要：
1、查找表中多余的重复记录，重复记录是根据单个字段（peopleId）来判断select * from peoplewhere peopleId in (select peopleId from people group by peopleId having count(peopleId) > 1)2、删除表中多余的重复记录，重复记录是根据单个字段（peopleId）来判断，只留有rowid最小的记录delete from people where peopleId in (select peopleId from people group by peopleId having coun 阅读全文
posted @ 2012-06-20 10:25 my_house_station 阅读(628) 评论(0) 推荐(0) 编辑