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Titolo:
Using object-oriented materialized views to answer selection-based complexqueries
Autore:
Alhajj, R; Polat, F;
Indirizzi:
Amer Univ Sharjah, Dept Math & Comp Sci, Sharjah, U Arab Emirates Amer Univ Sharjah Sharjah U Arab Emirates Sci, Sharjah, U Arab Emirates Middle E Tech Univ, Dept Comp Engn, TR-06531 Ankara, Turkey Middle E Tech Univ Ankara Turkey TR-06531 Engn, TR-06531 Ankara, Turkey
Titolo Testata:
INFORMATION SCIENCES
fascicolo: 1-4, volume: 118, anno: 1999,
pagine: 75 - 99
SICI:
0020-0255(199909)118:1-4<75:UOMVTA>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
RECURSIVE QUERIES;
Keywords:
complex queries; materialized views; object-oriented databases; query answer; query model; recursive queries;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Alhajj, R Amer Univ Sharjah, Dept Math & Comp Sci, POB 26666, Sharjah, U Arab Emirates Amer Univ Sharjah POB 26666 Sharjah U Arab Emirates b Emirates
Citazione:
R. Alhajj e F. Polat, "Using object-oriented materialized views to answer selection-based complexqueries", INF SCI, 118(1-4), 1999, pp. 75-99

Abstract

Presented in this paper is a model that utilizes existing materialized views to handle a wide range of complex selection-based queries, including linear recursive queries. Such queries are complex because it is almost impossible for naive users to predict the formulation of their predicate expressions. Object variables bound to objects in the result of a query are allowedto appear in the predicate of that query. Also, the predicate definition is extended to make it possible to have in the output only a subset of the objects from the actual result of a linear recursive query. We introduce an algorithm that utilizes existing materialized views in answering queries covered by the presented model. The presented model has been implemented as apart of our object-oriented database management system prototype. (C) 1999Elsevier Science Inc. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 09:04:32