2063 search results - page 174 / 413 » Containment of Aggregate Queries |
167
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BTW
2007
Springer
15 years 11 months ago
2007
Springer
: Over the recent years, very little effort has been made to give XPath a proper algebraic treatment. The only laudable exception is the Natix Algebra (NAL) which defines the tran...
139
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ADC
2004
Springer
15 years 8 months ago
2004
Springer
Most modern database applications contain a significant amount of time dependent data and a substantial proportion of this data is now-relative, i.e. current now. While much resea...
118
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SDM
2007
SIAM
15 years 6 months ago
2007
SIAM
An increasing amount of data is produced in the form of text streams − these can be RSS news feeds, TV closed captions, emails, etc. We study the problem of answering keyword qu...
139
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AI
2010
Springer
15 years 4 months ago
2010
Springer
We develop a new automated reasoning technique for the situation calculus that can handle a class of queries containing universal quantication over situation terms. Although such ...
114
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DEBU
2008
15 years 4 months ago
2008
Database administrators struggle when managing workloads that have widely different performance requirements. For example, the same database may support short-running OLTP queries...