sql重复数据处理，有唯一ID，formid有重复,留一条

/*sql重复数据处理，有唯一ID，formid有重复*/

/*查出重复的fromid*/

select formid from GaiaSaver_BUG group by formid having count(*)>1

/*删除重复formid，只留一条*/

delete from GaiaSaver_BUG  where ID not in
(select   min(ID) as ID  from  GaiaSaver_BUG  group by formid)