详见原文链接 http://www.killdb.com/2012/06/20/10g%e4%b8%addistinct%e5%8a%a0%e5%bc%ba%e4%bb%a5%e5%8f%8aanti-jionsemi-jion.html
posted on 2012-06-20 10:52  Roger's oracle blog  阅读(123)  评论(0编辑  收藏  举报