摘要
联系表示对象间的关系，对数据库及客观世界而言，是一种很有用的建模结构．文中从信息管理的角度，着重研究了表示事物对象间关系的联系基本概念，介绍了联系在工程数据库管理系统ＥＤＢＭＳ中的实现，并讨论了它在复杂对象表示及快速查询等多方面的应用．
Link represents the relationship between objects and is a very useful construct for modeling database and subjective world. Based on the definition of object, the concepts of single link and batch link are presented, that are used to represent the relationship between object instances and the relational class among objects. The two kinds of link make link object reaching complete. The implementation of link in the engineering database management system is also presented and the applications of link in representation of complex object and fast querying etc. are discussed in detail.
出处
《计算机研究与发展》
EI
CSCD
北大核心
1998年第4期333-337,共5页
Journal of Computer Research and Development
基金
"八五"国家重点科技攻关项目
关键词
联系
工程数据库
管理系统
复杂对象
link, engineering database management system, complex object
