Constructing superviews

  • Authors:
  • Amihai Motro;Peter Buneman

  • Affiliations:
  • University of Pennsylvania, Philadelphia, Pa;University of Pennsylvania, Philadelphia, Pa

  • Venue:
  • SIGMOD '81 Proceedings of the 1981 ACM SIGMOD international conference on Management of data
  • Year:
  • 1981

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Abstract

A method is described for integrating two or more databases into a conceptual "superview", through a set of schema transformations. Such integration may be useful when it is required to produce a unified view of two databases while preserving their physical independence. Each transformation defines a mapping of queries against the superview into the appropriate set of queries against the underlying databases and imposes a constraint that is checked when the query is evaluated. A program that interactively aids the user in constructing the superview and that performs this query transformation is being developed.