A graphical query language for temporal databases

  • Vram Kouramajian
  • Michael Gertz
Temporal Data Modeling
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1021)


This paper addresses the issue of visual query formulation for temporal databases. We introduce a number of visual constructs that allow users to build queries in a modular fashion based on a temporal Extended Entity-Relationship Model. These constructs are: Temporal projection, temporal selection, time links, filtering and set operators, and temporal aggregates.


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Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • Vram Kouramajian
    • 1
  • Michael Gertz
    • 2
  1. 1.Knight-Ridder Information, Inc.Mountain View
  2. 2.Institut für InformatikUniversität HannoverHannoverGermany

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