【摘要】 本文论述了关系型数据库管理系统MEDB的设计与实现,着重讨论了该系统的总体数据结构、系统构成、系统结构.该系统为在微机上进行CAD系统(尤其是机械CAD系统)集成提供了一个可行的核心软件.更多还原

【Abstract】 The relational database management system MEDB provides users with a feasible core software in a CAD system integration on the microcomputer, especially in a mechanical CAD system integration. The design and implementation of the system are presented with emphasis on the overall data structure, the system composition, and structure as well as some other implementing mechanisms.更多还原