摘要: 备忘....SQL语句:table:表名test:要查的列(有重复的值)select * from table a where (select count(1) from table b where a.test=b.test)>1 阅读全文
posted @ 2009-04-15 14:46 Ants 阅读(785) 评论(0) 推荐(0) 编辑