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Alpha-Acyclic Decompositions of Relational Database Schemes.

Detlev Ruland, Dietmar Seipel: Alpha-Acyclic Decompositions of Relational Database Schemes. PODS 1986: 191-201
@inproceedings{DBLP:conf/pods/RulandS86,
  author    = {Detlev Ruland and
               Dietmar Seipel},
  title     = {Alpha-Acyclic Decompositions of Relational Database Schemes},
  booktitle = {Proceedings of the Fifth ACM SIGACT-SIGMOD Symposium on Principles
               of Database Systems, March 24-26, 1986, Cambridge, Massachusetts},
  publisher = {ACM},
  year      = {1986},
  isbn      = {0-89791-179-2},
  pages     = {191-201},
  ee        = {http://doi.acm.org/10.1145/6012.6016, db/conf/pods/RulandS86.html},
  crossref  = {DBLP:conf/pods/86},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}
BibTeX

Abstract

We consider the design of database schemes satisfying the following three design properties: lossless join, Boyce-Codd normal form, and alpha-acyclicity. In particular the problem is investigated to decompose a relation scheme into an alpha-acyclic, lossless, BCNF database scheme using the well-known decomposition algorithm. A sample universal relation scheme is given, which cannot be decomposed losslessly into an alpha-acyclic, BCWF database scheme. Furthermore, for this relation scheme, it exists no database scheme satisfying these properties. The main fact forms a characterization of those decomposition processes producing alpha-acyclic database schemes.

Copyright © 1986 by the ACM, Inc., used by permission. Permission to make digital or hard copies is granted provided that copies are not made or distributed for profit or direct commercial advantage, and that copies show this notice on the first page or initial screen of a display along with the full citation.

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Printed Edition

Proceedings of the Fifth ACM SIGACT-SIGMOD Symposium on Principles of Database Systems, March 24-26, 1986, Cambridge, Massachusetts. ACM 1986, ISBN 0-89791-179-2
Contents BibTeX

Online Edition: ACM Digital Library

References

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BibTeX

Referenced by

  1. Detlev Ruland, Dietmar Seipel: Designing Alpha-Acyclic BCNF-Database Schemes. MFDBS 1987: 197-209
BibTeX
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