蓝狐的技术思考 BlueFox Thinking in Tech...
交流,分享,探讨技术...... Communication, Sharing, and Discussion about Technology.....

导航

 
1.查询数据库中重复的记录:
select realname,count(*) from users group by realname having count(*)>1
posted on 2007-01-09 11:44  蓝狐  阅读(417)  评论(0编辑  收藏  举报