GQL, a graphical query language for semantic databases

  • Manoochehr Azmoodeh
  • Hongbo Du
Work In Progress Papers
Part of the Lecture Notes in Computer Science book series (LNCS, volume 339)


GQL is a formal query language for graphically manipulating a semantic database. The language provides a set of pattern images and a set of simple rules for constructing pattern graphs. Users describe their queries by drawing pattern graphs against the graphical schema of the database. This paper describes various aspects of GQL: the underlying model, the pattern images and graphs, and the representation of operations. Implementational issues of a GQL interpreter and its relation to other query languages are also discussed.

Key words

Database Query Language Data Model Database Schema Graphics Pattern Image 


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Copyright information

© Springer-Verlag Berlin Heidelberg 1989

Authors and Affiliations

  • Manoochehr Azmoodeh
    • 1
  • Hongbo Du
    • 1
  1. 1.Department of Computer ScienceUniversity of EssexWivenhoe ParkUK

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