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dc.contributor.authorGriefahn, Ulrike
dc.contributor.authorManthey, Rainer
dc.date.accessioned2022-11-10T17:38:09Z
dc.date.available2022-11-10T17:38:09Z
dc.date.issued1994
dc.identifier.citationGriefahn, U.; Manthey, R. Update propagation in chimera, an active DOOD language. A: "Proceedings of the 5th International Workshop on the Deductive Approach to Information Systems and Databases". Universitat Politècnica de Catalunya. Departament de Llenguatges i Sistemes Informàtics, 1994, p. 277-298.
dc.identifier.urihttp://hdl.handle.net/2117/376048
dc.description.abstractPropagating updates is an important task to be performed within many database services such as integrity checking, maintenance of materialized views, and condition monitoring. This paper is concerned with the propagation of updates in an active DOOD language. The approach proposed is to make use of Chimera triggers for computing induced updates. It will be shown how a subset of Chimera's deductive rules can be compiled to update propagation triggers. In its expressiveness the rule set considered corresponds to that of Datalog with sets and negation. Using triggers for implementing update propgation has the advantage that no special component has to be implemented as a trigger mechanism has. to exist anyway. In this paper we will not propose new techniques for computing induced updates but will transfer the techniques - well-known for the relational model - to the object-oriented case.
dc.format.extent22 p.
dc.languageAnglès
dc.language.isoeng
dc.publisherUniversitat Politècnica de Catalunya. Departament de Llenguatges i Sistemes Informàtics
dc.rightsOpen access
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.lcshInformation storage and retrieval systems
dc.subject.lcshManagement information systems
dc.subject.lcshDeductive databases
dc.titleUpdate propagation in chimera, an active DOOD language
dc.typeConference report
dc.subject.lemacSistemes d'informació per a la gestió
dc.subject.lemacBases de dades
dc.subject.lemacBases de dades deductives
dc.subject.lemacInformació -- Sistemes d'emmagatzematge i recuperació
dc.rights.accessOpen Access
local.citation.publicationNameProceedings of the 5th International Workshop on the Deductive Approach to Information Systems and Databases
local.citation.startingPage277
local.citation.endingPage298


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