Oracle10g02

代码说明：

  Oracle10G系列讲座第2部，主要讲述SQL语法,可以单独阅读这部分，但是有体系结构(第一部)的基础则更好(Oracle10g Lecture Series No. 2, mainly on the SQL grammar, you can read this part alone, but have architecture (the first) is the basis for better)