Database Security: Policies and Mechanisms
An introduction into policies and mechanisms of database security is given. Three different policy classes for access control are distinguished: Owner driven access control (discretionary access control), organization driven access control (mandatory acce
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Series Editors: The Rectors 0/ CISM Sandor Kaliszky - Budapest Mahir Sayir - Zurich Wilhelm Schneider - Wien The Secretary General 0/ CISM Giovanni Bianchi - Milan Executive Editor Carlo Tasso - Udine
The series presents lecture notes, monographs, edited works and proceedings in the field of Mechanics, Engineering, Computer Science and Applied Mathematics. Purpose of the series in to make known in the international scientific and technical community results obtained in some of the activities organized by CISM, the International Centre for Mechanical Sciences.
INTERNATIONAL CENTRE FOR MECHANICAL SCIENCES COURSES AND LECfURES - No. 347
ADVANCES IN DATABASE SYSTEMS IMPLEMENTATIONS AND APPLICATIONS
EDITED BY 1. PAREDAENS UNIVERSITY OF ANTWERP AND TECHNICAL UNIVERSITY OF EINDHOVEN L. TENENBAUM
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RUSSIAN ACADEMY OF SCIENCES
SPRINGER-VERLAG WIEN GMBH
Le spese di stampa di questo volume sono in parte coperte da
contributi deI Consiglio Nazionale delle Ricerche.
This volume contains 99 illustrations
This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concemed specifically those of translation, reprinting, re-use of illustrations, broadcasting, reproduction by photocopying machine or similar means, and storage in data banks. © 1994 by Springer-Verlag Wien Originally published by Springer-Verlag Wien New York in 1994
In order to make this volume available as economically and as
rapidly as possible the authors' typescripts have been reproduced in their original forms. This method unfortunately has its typographicallimitations but it is hoped that they in no way distract the reader.
ISBN 978-3-211-82614-0 DOI 10.1007/978-3-7091-2704-9
ISBN 978-3-7091-2704-9 (eBook)
PREFACE
At the end of 1992 Prof. Lev Tenenbaum,from the Institutefor Control Science in Moscow, took the initiative to organize a school of two weeks, "Advances in Database Systems, Implementations and Applications", in cooperation with CISM and Unesco. CISM is the International Centre for Mechanical Sciences in Udine (Italy). For already more than twenty years it organizes schools and courses, with the purpose to favour the exchange of ideas and experiences among experienced and young scientists all over the world. Lev asked me to coordinate the school together with him. From then on we had a fruitful cooperation, which resulted in the final program of the school which was held in Udine September 13-24,1993. Advanced information technology is pervasive in any kind of human activity science, business,finance, management and others - and this is particularly true for database systems. Both database theory and database applications constitute a very important part of the state of the art of computer science. Meanwhile there is some discrepancy between different aspects of database activity. Theoreticians are sometimes not much aware of the real needs of business and industry; software specialists not always have the time or the opportunity to get acquainted with the most recent theoretical ideas a
