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Equivalence and Mapping of Database Schemes.

Alessandro D'Atri, Domenico Saccà: Equivalence and Mapping of Database Schemes. VLDB 1984: 187-195
@inproceedings{DBLP:conf/vldb/DAtriS84,
  author    = {Alessandro D'Atri and
               Domenico Sacc{\`a}},
  editor    = {Umeshwar Dayal and
               Gunter Schlageter and
               Lim Huat Seng},
  title     = {Equivalence and Mapping of Database Schemes},
  booktitle = {Tenth International Conference on Very Large Data Bases, August
               27-31, 1984, Singapore, Proceedings},
  publisher = {Morgan Kaufmann},
  year      = {1984},
  isbn      = {0-934613-16-8},
  pages     = {187-195},
  ee        = {http://www.vldb.org/conf/1984/P187.PDF},
  crossref  = {DBLP:conf/vldb/84},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

Abstract

We investigate the problem of database equivalence which arises in database design process. We introduce a graph formalism for the treatment of this problem. More precisely, we represent Entity-Relationship schemes by a special kind of graphs (called JFD-graphs) and we give a simple and efficient algorithm for testing the equivalence of two schemes. In addition, we present a set of elementary operators (preserving equivalence) for modifying an Entity-Relationship scheme and we prove that all equivalent schemes can be obtained by repeatedly applying such operators. Finally, we propose a methodology for mapping Entity-Relationship schemes into both relational and network schemes.

Copyright © 1984 by the VLDB Endowment. Permission to copy without fee all or part of this material is granted provided that the copies are not made or distributed for direct commercial advantage, the VLDB copyright notice and the title of the publication and its date appear, and notice is given that copying is by the permission of the Very Large Data Base Endowment. To copy otherwise, or to republish, requires a fee and/or special permission from the Endowment.


Printed Edition

Umeshwar Dayal, Gunter Schlageter, Lim Huat Seng (Eds.): Tenth International Conference on Very Large Data Bases, August 27-31, 1984, Singapore, Proceedings. Morgan Kaufmann 1984, ISBN 0-934613-16-8
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