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Adding Inferencing to a Relational Database Management System

  • Conference paper
Datenbanksysteme in Büro, Technik und Wissenschaft

Part of the book series: Informatik-Fachberichte ((INFORMATIK,volume 204))

Abstract

The LogiQuel System is a deductive DBMS which supports the management of clauses expressed in LogiQuel, a language with the expressive power of extended Datalog with negation. The inference mechanism used to evaluate LogiQuel queries is both sound and complete under the tight-tree semantics. The system is implemented on top of a commercial relational DBMS. After a brief overview of LogiQuel we show how a LogiQuel statement is translated into SQL for subsequent evaluation by the DBMS.

Kurzfassung

Das LogiQuel System ist ein deduktives Datenbanksystem, das die Verwaltung von Klauseln unterstützt, Dazu wird die Sprache LogiQuel, die erweitertem Datalog mit Negation entspricht, verwendet Der Inferenzmechanismus, der zur Evaluation von LogiQuel Abfragen verwendet wird, ist korrekt und vollständig bezüglich der “Tight-Tree” Semantik:. Das System wurde auf der Basis eines kommerziellen relationalen Datenbanksystems implementiert. Nach einem kurzen Überblick über LogiQuel wird gezeigt, wie LogiQuel Anweisungen in entsprechende SQL Anweisungen übersetzt und anschliessend vom Datenbanksystem ausgewertet werden.

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References

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Author information

Authors and Affiliations

  1. Institut für Informationssysteme, ETH-Zentrum, 8092, Zürich, Switzerland

    R. Marti, C. Wieland & B. Wüthrich

Authors
  1. R. Marti
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  2. C. Wieland
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  3. B. Wüthrich
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Editor information

Editors and Affiliations

  1. Fachbereich Informatik, Universität Kaiserslautern, Erwin-Schrödinger-Straße, D-6750, Kaiserslautern, Deutschland

    Theo Härder

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© 1989 Springer-Verlag Berlin Heidelberg

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Marti, R., Wieland, C., Wüthrich, B. (1989). Adding Inferencing to a Relational Database Management System. In: Härder, T. (eds) Datenbanksysteme in Büro, Technik und Wissenschaft. Informatik-Fachberichte, vol 204. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-74571-3_20

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  • DOI: https://doi.org/10.1007/978-3-642-74571-3_20

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-50894-6

  • Online ISBN: 978-3-642-74571-3

  • eBook Packages: Springer Book Archive

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