3403 search results - page 251 / 681 » A Query System in a Biological Database |
178
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PODS
2004
ACM
16 years 6 months ago
2004
ACM
Unions of conjunctive queries, also known as select-project-join-union queries, are the most frequently asked queries in relational database systems. These queries are definable b...
181
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EDBT
2004
ACM
16 years 2 days ago
2004
ACM
Abstract. We present a cost-based adaptive clustering method to improve average performance of spatial queries (intersection, containment, enclosure queries) over large collections...
190
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VLDB
1991
ACM
15 years 10 months ago
1991
ACM
Queries in object-oriented datab;Lqcs are formulated against a class and retrieve instnnccls of the class sat,isfying a certain predicate on the att,riblltes of the class. The pre...
187
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PVLDB
2008
15 years 6 months ago
2008
The backend database system is often the performance bottleneck when running web applications. A common approach to scale the database component is query result caching, but it fa...
173
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JUCS
2008
15 years 6 months ago
2008
: Over the last decade, due to the rapid developments in information technology (IT), a new breed of information systems has appeared such as geographic information systems that in...