Viewers: A Data-World Analogue of Procedure Calls.

Kazimierz Subieta, Florian Matthes, Joachim W. Schmidt, Andreas Rudloff: Viewers: A Data-World Analogue of Procedure Calls. VLDB 1993: 268-277

@inproceedings{DBLP:conf/vldb/SubietaMSR93,
  author    = {Kazimierz Subieta and
               Florian Matthes and
               Joachim W. Schmidt and
               Andreas Rudloff},
  editor    = {Rakesh Agrawal and
               Se{\'a}n Baker and
               David A. Bell},
  title     = {Viewers: A Data-World Analogue of Procedure Calls},
  booktitle = {19th International Conference on Very Large Data Bases, August
               24-27, 1993, Dublin, Ireland, Proceedings},
  publisher = {Morgan Kaufmann},
  year      = {1993},
  isbn      = {1-55860-152-X},
  pages     = {268-277},
  ee        = {db/conf/vldb/SubietaMSR93.html},
  crossref  = {DBLP:conf/vldb/93},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

Abstract

A viewer is a reference-valued datum with a special meaning: a value of the data pointed by the viewer becomes a virtual part of data where the viewer is placed; the value virtually substitutes the viewer. Viewers are considered to be a data-world analogue of procedure calls. They possess a large conceptual and pragmatic potential as a result of new datasemantics on which we can base a variety of well-organized data structures. Various applications of viewers, related to DBPLs and object-oriented data modelling, are presented: importing common attributes, inheritance and multi- inheritance, stored selections, projections and joins, viewing a single relational structure as several hierarchical structures, etc. Methodological and formal aspects of the concept are discussed and a method of incorporating viewers into a query language is presented.

Copyright © 1993 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.

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Contents

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