一條sql語句完成MySQL去重留保留一條記錄
DELETE consum_record FROM consum_record, ( SELECT min(id) id, user_id, monetary, ...
DELETE consum_record FROM consum_record, ( SELECT min(id) id, user_id, monetary, ...
假如有這樣一張表news:字段:id,title,time,image,author,現在表中有1萬多條記錄,其中title重復的有上千條。如何才能一次性將title重復記錄刪除呢? ...