摘要: mysql> select userid+1 from dyt_member t1 where not exists (select userid from dyt_member t2 where t2.userid=t1.userid+1) and length(userid)>5 order by userid limit 1; 阅读全文
posted @ 2010-08-28 11:26 bjf 阅读(1148) 评论(0) 推荐(0) 编辑