摘要： 1 查询及删除重复记录的SQL语句 2 3 1、查找表中多余的重复记录，重复记录是根据单个字段（Id）来判断 4 5 select * from 表 where Id in (select Id from 表 group byId having count(Id) > 1) 6 7 2、删除表中多余的重复记录，重复记录是根据单个字段（Id）来判断，只留有rowid最小的记录 8 9 DELETE from 表 WHERE (id) IN ( SELECT id FROM 表 GROUP BY id HAVING COUNT(id) > 1) AND ROWID NOT IN ... 阅读全文