查詢字段值出現多次的字段值

查詢字段值出現多次的字段值

2014年10月22日14:00:10

select DISTINCT(CardID),count(*) from e_voidcard group by CardID HAVING count(*)>1;

在etc二代 MySQL3.23上測試通過

select NetNo,CardID,OBUID,count(*) from ETCBlackList32 group by NetNo,CardID,OBUID HAVING count(*)>1;