Generalized Mutual Dependencies and the Decomposition of Database Relations.
Alberto O. Mendelzon, David Maier:
Generalized Mutual Dependencies and the Decomposition of Database Relations.
VLDB 1979: 75-82@inproceedings{DBLP:conf/vldb/MendelzonM79,
author = {Alberto O. Mendelzon and
David Maier},
editor = {Antonio L. Furtado and
Howard L. Morgan},
title = {Generalized Mutual Dependencies and the Decomposition of Database
Relations},
booktitle = {Fifth International Conference on Very Large Data Bases, October
3-5, 1979, Rio de Janeiro, Brazil, Proceedings},
publisher = {IEEE Computer Society},
year = {1979},
pages = {75-82},
ee = {db/conf/vldb/MendelzonM79.html},
crossref = {DBLP:conf/vldb/79},
bibsource = {DBLP, http://dblp.uni-trier.de}
}
Abstract
Mutual dependencies have been shown to provide a
necessary and sufficient condition for a relation to be
decomposable into three of its projections. We generalize
the notion of mutual dependency by extending it to
any number of sets of attributes and removing some
constraints from its original definition. We show that a
generalized mutual dependency, together with a set of
multivalued dependencies, provide a necessary and
sufficient condition for a relation to be decomposable in
the general case.
Copyright © 1979 by The Institute of
Electrical and Electronic Engineers, Inc. (IEEE).
Abstract used with permission.
CDROM Version: Load the CDROM "Volume 1 Issue 4, VLDB '75-'88" and ...
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Printed Edition
Antonio L. Furtado, Howard L. Morgan (Eds.):
Fifth International Conference on Very Large Data Bases, October 3-5, 1979, Rio de Janeiro, Brazil, Proceedings.
IEEE Computer Society 1979
Contents
References
- [ABU]
- Alfred V. Aho, Catriel Beeri, Jeffrey D. Ullman:
The Theory of Joins in Relational Data Bases (Extended Abstract).
FOCS 1977: 107-113
- [Arm]
- William Ward Armstrong:
Dependency Structures of Data Base Relationships.
IFIP Congress 1974: 580-583
- [ASU]
- Alfred V. Aho, Yehoshua Sagiv, Jeffrey D. Ullman:
Equivalences Among Relational Expressions.
SIAM J. Comput. 8(2): 218-246(1979)
- [Codd]
- E. F. Codd:
A Relational Model of Data for Large Shared Data Banks.
Commun. ACM 13(6): 377-387(1970)
- [DB]
- ...
- [Fag]
- Ronald Fagin:
Multivalued Dependencies and a New Normal Form for Relational Databases.
ACM Trans. Database Syst. 2(3): 262-278(1977)
- [MMS]
- David Maier, Alberto O. Mendelzon, Yehoshua Sagiv:
Testing Implications of Data Dependencies.
ACM Trans. Database Syst. 4(4): 455-469(1979)
- [Nic1]
- Jean-Marie Nicolas:
Mutual Dependencies and Some Results on Undecomposable Relations.
VLDB 1978: 360-367
- [Nic2]
- Jean-Marie Nicolas:
First Order Logic Formalization for Functional, Multivalued and Mutual Dependencies.
SIGMOD Conference 1978: 40-46
- [Ri]
- Jorma Rissanen:
Theory of Relations for Databases - A Tutorial Survey.
MFCS 1978: 536-551
- [Zan]
- ...
Copyright © Mon Mar 15 03:55:47 2010
by Michael Ley (ley@uni-trier.de)