SQL查询，如何去除重复的记录？ sql查询去2113除重复值语句sql 单表/多表查询去除重5261复记录单表distinct多表group bygroup by 必须放在 order by 和 limit之前，不然会4102报错1、查找表中多余的重复记录，1653重复记录是根据单个字段（peopleId）来判断select*from peoplewhere peopleId in(select peopleId from people group by peopleId having count(peopleId)>；1)2、删除表中多余的重复记录，重复记录是根据单个字段（peopleId）来判断，只留有rowid最小的记录delete from peoplewhere peopleId in(select peopleId from people group by peopleId having count(peopleId)>；1)and rowid not in(select min(rowid)from people group by peopleId having count(peopleId)>；1)3、查找表中多余的重复记录（多个字段）select*from vitae awhere(a.peopleId，a.seq)in(select peopleId，seq from vitae group by peopleId，seq having count(*)>；1)4、删除表中多余的重复记录（多个字段），只留有rowid最小的记录delete from vitae awhere(a.peopleId，a.seq)in(select peopleId，seq from vitae group by peopleId，seq having count(*)>；1)and rowid not in(select min(rowid)from 。
SQL SERVER怎样查询出多条重复数据？ SQL SERVER怎样查询出多条重复数据，在qlerver中经常需要查询数据，而有时会有一条数据想要返回多条的情况，此时可以通过笛卡尔积的形式进行处理
sql语句如何查询重复数据 查询重复数据的话 直接select*from table_name；就可以了啊如果是想剔除有重复的数据，select distinct*from table；
