Recursive Strategies for Answering Recursive Queries - The RQA/FQI Strategy.
Wolfgang Nejdl:
Recursive Strategies for Answering Recursive Queries - The RQA/FQI Strategy.
VLDB 1987: 43-50@inproceedings{DBLP:conf/vldb/Nejdl87,
author = {Wolfgang Nejdl},
editor = {Peter M. Stocker and
William Kent and
Peter Hammersley},
title = {Recursive Strategies for Answering Recursive Queries - The RQA/FQI
Strategy},
booktitle = {VLDB'87, Proceedings of 13th International Conference on Very
Large Data Bases, September 1-4, 1987, Brighton, England},
publisher = {Morgan Kaufmann},
year = {1987},
isbn = {0-934613-46-X},
pages = {43-50},
ee = {db/conf/vldb/Nejdl87.html},
crossref = {DBLP:conf/vldb/87},
bibsource = {DBLP, http://dblp.uni-trier.de}
}
Abstract
In this paper we will discuss several methods for recursive
query processing using a recursive control structure.
We will describe the QSQR method, introduced in [Vie86]
and show that it fails to produce all answers in certain cases.
After analyzing the causes of this failure we propose an
improved algorithm - the RQA/FQI Strategy - which is complete
over the domain of function-free Horn clauses.
The new method uses a two step approach - recursive expansion
+ an efficient variant of LFP iteration - to evaluate
recursive queries.
A short comparison of these methods shows the efficiency of RQA/FQI.
Copyright © 1987 by the VLDB Endowment.
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is by the permission of the Very Large Data Base
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Online Paper
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Printed Edition
Peter M. Stocker, William Kent, Peter Hammersley (Eds.):
VLDB'87, Proceedings of 13th International Conference on Very Large Data Bases, September 1-4, 1987, Brighton, England.
Morgan Kaufmann 1987, ISBN 0-934613-46-X
Contents
References
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An Amateur's Introduction to Recursive Query Processing Strategies.
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VLDB 1986: 395-402
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A Database-Complete Proof Procedure Based on SLD-Resolution.
ICLP 1987: 74-103
Copyright © Tue Mar 16 02:21:59 2010
by Michael Ley (ley@uni-trier.de)