为小珍所药品销售统计设计，可以及时检查本所药品销售情况。-Xiao-Zhen Drugs for sales statistics by design, can be a timely examination of the drugs by sales.

包括很多的oracle基础知识，是一个零基础学oracle的好材料-uding many of the basic knowledge of Oracle, is a good material to learn Oracle zero base