单表查找重复的数据

SELECT base.* from
(
select id_no,COUNT(*) from aim.aim_t_cust_base GROUP BY id_no HAVING COUNT(*) >1
) as t

left join aim.aim_t_cust_base base on t.id_no = base.id_no

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转载自www.cnblogs.com/maohuidong/p/11009653.html