ORACLE 去除多余的重复记录语句

一，去除多余的重复记录，如下以判断a字段，若是字段相同则记录相同 一、使用 rowid的方式 ①正常版web delete from stu where a in (select a from stu group by a having count(a)>1) and rowid not in (select min(rowid) from people group by a having cou

>>阅读原文<<