关键词: 数据库, 分层, 通用数据库访问, 中间件

Abstract:

Nowadays, there is big difference of the developing interface provided by database system of the high-level language(for example: C++), We need to write the corresponding code for the specified database. While database is changed, the code should be modified accordingly, the flexibility of the system becomes worse. In view of the above problems, adopting the layered thought, that is, inserting the middle layer between the application and database access layer, called general database access interface (GDBAI) middleware. By abstracting the application and the database access layer, the application and the database access control are separated, and the amount of code is reduced at least 20%, and the ease of use and maintainability are improved.

Key words: database, layer, GDBAI, middleware