摘要：一些很用得上场的 sql 记录重复的处理方法 <转载>1、查找表中多余的重复记录，重复记录是根据单个字段（peopleId）来判断select * from peoplewhere peopleId in (select peopleIdfrom peoplegroupby peopleIdhavingcount(peopleId) > 1)2、删除表中多余的重复记录，重复记录是... 阅读全文