运用COM/DCOM组件开发多层数据库应用系统

The Application System of Multilayer Database Based on COM/DCOM

多层数据库应用系统与传统数据库应用系统相比,具有提高代码的可重用性、提高系统安全性、便于模块管理等优越性,是开发信息系统的理想模式。这里结合具体的软件开发工具 C++ Builder,以开发多层数据库应用系统为对象,阐明了多层数据库应用系统的三层结构原理及数据库通讯机制,并给出了一个具体应用实例,验证了运用COM/DCOM 组件开发多层数据库应用系统的理论方法的正确性。

Compared with the application system of traditional database, the application system of multilayer database has the superiority of improving the capability of a code reuse, improving the security of the computer system and is very convenient for modularization management. The application system of multilayer database is ideal technology of Information system exploitation. Aimed at developing the application system of multilayer database, combined with the software tool of C++ Builder, Three-tier structure theory of the application system of multiplayer database and the database communication mechanism are presented in the paper, and an application example is described. It has proved that the theory method that The application system of multilayer database based on COM/DCOM is true.