From XML view updates to relational view updates: old solutions to a new problem

  • Authors:
  • Vanessa P. Braganholo;Susan B. Davidson;Carlos A. Heuser

  • Affiliations:
  • Instituto de Informática, Universidade Federal do Rio Grande do Sul - UFRGS, Brazil;Department of Computer and Information Science, University of Pennsylvania & INRIA-FUTURS, France;Instituto de Informática, Universidade Federal do Rio Grande do Sul - UFRGS, Brazil

  • Venue:
  • VLDB '04 Proceedings of the Thirtieth international conference on Very large data bases - Volume 30
  • Year:
  • 2004

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Abstract

This paper addresses the question of updating relational databases through XML views. Using query trees to capture the notions of selection, projection, nesting, grouping, and heterogeneous sets found throughout most XML query languages, we show how XML views expressed using query trees can be mapped to a set of corresponding relational views. We then show how updates on the XML view are mapped to updates on the corresponding relational views. Existing work on updating relational views can then be leveraged to determine whether or not the relational views are updatable with respect to the relational updates, and if so, to translate the updates to the underlying relational database.