ACM SIGMOD Anthology VLDB dblp.uni-trier.de

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.


ACM SIGMOD Anthology

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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
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References

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