select id_,price_ from ap_car a where open_ = 1 and exists( select 1 from ap_car where a.price_=price_ group by price_ having count(*)>1 and min(id_)<a.id_ ) order by price_ desc;
查询表中重复字段数据的id
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转载自peng13123.iteye.com/blog/2046118
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