A SYSTEM‐THEORETICAL APPROACH TO DATABASE SYSTEMS
A.M. TJOA
(Institut für Statistik Universität Wien, Vienna, Austria)
R.R. WAGNER
(Institut für Statistik und Informatik Johannes Kepler Universität Linz, Linz, Austria)
705
Abstract
The various aspects of database systems are formalized. An information base is described as a projection of the real world which follows certain semantical constraints. The concepts of the external, conceptual and internal model of a database are integrated in this theory. Furthermore, interactions (query, update, add and delete) on databases are defined exactly with the help of this generalized concept.
Citation
TJOA, A.M. and WAGNER, R.R. (1980), "A SYSTEM‐THEORETICAL APPROACH TO DATABASE SYSTEMS", Kybernetes, Vol. 9 No. 4, pp. 257-264. https://doi.org/10.1108/eb005562
Publisher
:MCB UP Ltd
Copyright © 1980, MCB UP Limited