摘要:
Oracle 查询并删除重复记录的SQL语句 查询并删除重复记录的SQL语句查询及删除重复记录的SQL语句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 (sele 阅读全文