Oracle 删除根据id 删除重复数据

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查询重复的数据

select * from t_creditobjection a where (a.id) in  (select id from t_creditobjection group by id  having count(*) > 1)

删除重复的数据

delete from t_creditobjection
where id in (select   id from t_creditobjection group by   id   having count(id) > 1)
and rowid not in (select min(rowid) from   t_creditobjection group by id having count(id )>1)