网址:http://www.itpub.net/forum.php?mod=viewthread&tid=1366572
Enhanced subquery optimizations in Oracle(转载)
I believe that we are who we choose to be. Nobody‘s going to come and save you, you‘ve got to save yourself.
我相信我们成为怎样的人是我们自己的选择。没有人会来拯救你,你必须要自己拯救自己。