Support for modeling relationships in object-oriented databases

作     者：Beraha, S Su, JW 

作者机构：Univ Calif Santa Barbara Dept Comp Sci Santa Barbara CA 93106 USA 

出 版 物：《DATA & KNOWLEDGE ENGINEERING》 (数据与知识工程)

年 卷 期：1999年第29卷第3期

页      面：227-257页

核心收录：

学科分类：08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：National Science Foundation, NSF, (IRI94-11330) National Aeronautics and Space Administration, NASA, (NAGW-3888) 

主　　题：data modeling object-oriented databases entity and relationship models nested relationships database design database query languages 

摘      要：Modeling real-world applications typically consists of two parts: the representations of entities of interest, and the representations of relationships among the entities. Object-oriented data models support the first task. This paper argues through examples that the second modeling task is not well supported in current object-oriented database systems. An extended object-oriented data model that facilitates both modeling tasks is developed. This extension provides support for both the representation of complex relationships among entities and their manipulations (queries, updates). A prototype implemented on the ONTOS database management system is briefly described. (C) 1999 Elsevier Science B.V. All rights reserved.