6650 search results - page 333 / 1330 » Mutating database queries |
138
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DOLAP
2009
ACM
15 years 11 months ago
2009
ACM
In this paper, we investigate the problem of answering top-k queries via materialized views. We provide theoretical guarantees for the adequacy of a view to answer a top-k query, ...
148
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FQAS
2004
Springer
15 years 10 months ago
2004
Springer
In: Proceedings of the Sixth International Conference On Flexible Query Answering Systems (FQAS-04), Springer-Verlag LNAI 3055, pp. 203-216. c 2004 by Springer-Verlag. To model qu...
159
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MDM
2010
Springer
15 years 9 months ago
2010
Springer
—Range query processing is an important technology in spatial databases. Current studies mainly focus on range queries in outdoor space based on the Euclidean or network distance...
240
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ICDE
2009
IEEE
16 years 6 months ago
2009
IEEE
Commercial database systems expose query hints to address situations in which the optimizer chooses a poor plan for a given query. However, current query hints are not flexible eno...
234
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SIGMOD
2009
ACM
16 years 5 months ago
2009
ACM
Existing works in XML keyword search have addressed the problem of finding matching results of a query. However, user input queries always contain irrelevant or mismatched terms, ...