Abstract
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.
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© 1989 Springer-Verlag Berlin Heidelberg
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Azmoodeh, M., Du, H. (1989). GQL, a graphical query language for semantic databases. In: Rafanelli, M., Klensin, J.C., Svensson, P. (eds) Statistical and Scientific Database Management. SSDBM 1988. Lecture Notes in Computer Science, vol 339. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0027518
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DOI: https://doi.org/10.1007/BFb0027518
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