摘要: eg:COMPONENT表数据如下 1.执行select * from (select com.*,rownum r_num from (select * from COMPONENT)com where rownum < 8) where r_num > 2 2.执行 select * from 阅读全文
posted @ 2018-03-06 10:03 小宝的进化之路 阅读(445) 评论(0) 推荐(0)