delete from table where rowid not in (select max(rowid) from table group by 字段);本文为“技术点滴”的原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接及本声明。
ORACLE删除重复记录
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delete from table where rowid not in (select max(rowid) from table group by 字段);