实际上，很多用户一直都在使用未经授权的Oracle Enterprise Edition，对于这些用户，他们根本不关心是否免费，只要你不查版权就Ok了，当然，Oracle也不太关心用户是否购买，只要你用Oracle数据库，他的目的就基本达到了。
My mantra, that I'll be sticking with thank you very much, is:
1.You should do it in a single SQL statement if at all possible.
2.If you cannot do it in a single SQL Statement, then do it in PL/SQL.
3.If you cannot do it in PL/SQL, try a Java Stored Procedure.
4.If you cannot do it in Java, do it in a C external procedure.
5.If you cannot do it in a C external routine, you might want to seriously think about why it is you need to do it…
think in sets...
内容有意义，但我觉得语句更有意思，喜欢这种风格。。。
以前都没怎么写过东西，日志也很少写。但感觉东西多了，会忘记，应该把值得记忆的东西记下来，所以，从今天开始，我要尝试把自己知道的，耳听目闻的东西记下来，一方面留作记忆，另一方面跟大家分享。。。加油。。。