ACM SIGMOD Anthology ACM SIGMOD dblp.uni-trier.de

Updates of Relational Views.

Stavros S. Cosmadakis, Christos H. Papadimitriou: Updates of Relational Views. PODS 1983: 317-331
@inproceedings{DBLP:conf/pods/Cosmadakis83a,
  author    = {Stavros S. Cosmadakis and
               Christos H. Papadimitriou},
  title     = {Updates of Relational Views},
  booktitle = {Proceedings of the Second ACM SIGACT-SIGMOD Symposium on Principles
               of Database Systems, March 21-23, 1983, Colony Square Hotel,
               Atlanta, Georgia},
  publisher = {ACM},
  year      = {1983},
  isbn      = {0-89791-097-4},
  pages     = {317-331},
  ee        = {http://doi.acm.org/10.1145/588058.588096, db/conf/pods/Cosmadakis83a.html},
  crossref  = {DBLP:conf/pods/83},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}
BibTeX

Abstract

We study the problem of translating updates of views. View updates are disambiguated by requiring that a specified view complement (i.e. a second view which contains all the information omitted from the given view) remains constant during the translation. We study some of the computational problems related to the application of this general methodology in the context of relational databases. We restrict our attention to projective views of databases which consist of a single relation and satisfy functional dependencies. We first characterize complementary views and show that finding a minimum complement of a given view is NP-complete. We then study in detail the problem of translating the insertion of a tuple into a view and extend our results to the cases of deletion and replacement of a tuple. Finally we define and study a new kind of dependencies: the explicit functional dependencies, which intuitively state that some part of the database information can be computed from the rest.

Copyright © 1983 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 Second ACM SIGACT-SIGMOD Symposium on Principles of Database Systems, March 21-23, 1983, Colony Square Hotel, Atlanta, Georgia. ACM 1983, ISBN 0-89791-097-4
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Online Edition: ACM Digital Library

References

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Referenced by

  1. Joachim Biskup, Bernhard Convent: Towards a Schema Design Methodology for Deductive Databases. MFDBS 1989: 37-52
  2. Jürgen Diet, Frederick H. Lochovsky: Interactive Specification and Integration of User Views Using Forms. ER 1989: 171-185
  3. Victor Vianu: A Dynamic Framework for Object Projection Views. ACM Trans. Database Syst. 13(1): 1-22(1988)
  4. Joachim Biskup, Bernhard Convent: A Formal View Integration Method. SIGMOD Conference 1986: 398-407
  5. Claudia Bauzer Medeiros, Frank Wm. Tompa: Understanding the Implications of View Update Policies. VLDB 1985: 316-323
  6. Victor Vianu: Object Projection Views in the Dynamic Relational Model. PODS 1984: 214-220
  7. Stephen J. Hegner: Canonical View Update Support through Boolean Algebras of Components. PODS 1984: 163-173
BibTeX
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