dc.contributor.author | Griefahn, Ulrike |
dc.contributor.author | Manthey, Rainer |
dc.date.accessioned | 2022-11-10T17:38:09Z |
dc.date.available | 2022-11-10T17:38:09Z |
dc.date.issued | 1994 |
dc.identifier.citation | Griefahn, 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.uri | http://hdl.handle.net/2117/376048 |
dc.description.abstract | Propagating 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.extent | 22 p. |
dc.language | Anglès |
dc.language.iso | eng |
dc.publisher | Universitat Politècnica de Catalunya. Departament de Llenguatges i Sistemes Informàtics |
dc.rights | Open access |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
dc.subject.lcsh | Information storage and retrieval systems |
dc.subject.lcsh | Management information systems |
dc.subject.lcsh | Deductive databases |
dc.title | Update propagation in chimera, an active DOOD language |
dc.type | Conference report |
dc.subject.lemac | Sistemes d'informació per a la gestió |
dc.subject.lemac | Bases de dades |
dc.subject.lemac | Bases de dades deductives |
dc.subject.lemac | Informació -- Sistemes d'emmagatzematge i recuperació |
dc.rights.access | Open Access |
local.citation.publicationName | Proceedings of the 5th International Workshop on the Deductive Approach to Information Systems and Databases |
local.citation.startingPage | 277 |
local.citation.endingPage | 298 |