Based on the analysis to several usual operations in data base application system, the optimized strategy on how to construct SQL sentence to improve operation speed is studied in this paper.
本文通过分析数据库应用系统中常见的几种运算，提出了如何构建SQL语句，才能达到运算的优化，提高系统运行速度。
Use the backstage data of the whole system of SQL SERVER data base administration.
使用SQL SERVER数据库管理整个系统的后台数据。
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