Affiliation:
1. AT&T Bell Laboratories, Murray Hill, NJ
Abstract
This paper presents a simple approach for extending the relational system INGRES into one supporting a semantic data model it describe a DBMS consisting of (i) a user-friendly front-end, supporting the GEM semantic data model and query language under the UNIX time-sharing system, and (ii) a dedicated back-end processor providing efficient support for database transactions, concurrency control and recovery GEM extends the relational model to support the notions of entities with surrogates, the relationships of aggregation and generalization, null values and set-valued attributes, and provides simple extensions of QUEL to handle these new constructs in this proposed implementation of GEM, the relational database processor IDM 500 by Britton-Lee is used as the back-end machine
Publisher
Association for Computing Machinery (ACM)
Subject
Information Systems,Software
Cited by
8 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
1. Algebra for Fuzzy Object Oriented Database Language;International Journal of Computers and Applications;2004-01
2. Building a database feedback system;Journal of Microcomputer Applications;1994-01
3. Issues in extending a relational system with object-oriented features;Lecture Notes in Computer Science;1994
4. Object systems over relational databases;Information and Software Technology;1993-08
5. An Approach for Customizing Services of Database Machines;The Kluwer International Series in Engineering and Computer Science;1988