【摘要】 在论述关系数据库的发展及其应用的基础上 ,指出了探讨关系数据库开发技术的必要性。分析了关系数据库的建模方法 ,重点对应用 ERwin这一关系数据库开发的优秀 CASE工具的应用进行了研究 ,最后以大学教材科书库管理系统 ER模型图为例 ,构造了书库管理中的各种实体和联系 ,提供了关系数据库建模技术的典型应用方法更多还原

【Abstract】 Based on a thorough discussion to the development and application of Database as well as the necessity for the development of Database technology, this study analyzes the modeling method of relational Database, emphasizing on the application of CASE tool, an excellent tool developed by the relational Database of ERwin. Taking as an example the ER model, a university bookstore management system, it constructs all the entities and relationships for the management of bookstores and provides a typical application for the modeling technology of relational Database.更多还原