6650 search results - page 1166 / 1330 » Mutating database queries |
215
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VLDB
2004
ACM
16 years 3 months ago
2004
ACM
Abstract This paper describes the design, implementation, and performance characteristics of a commercial XQuery processing engine, the BEA streaming XQuery processor. This XQuery ...
232
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VLDB
2004
ACM
16 years 3 months ago
2004
ACM
Indatawarehousingapplications,numerousOLAP queries involve the processing of holistic aggregators such as computing the "top n," median, quantiles, etc. In this paper, we...
206
Voted
VLDB
2004
ACM
16 years 3 months ago
2004
ACM
Abstract. In dynamic environments like the Web, data sources may change not only their data but also their schemas, their semantics, and their query capabilities.When a mapping is ...
208
Voted
VLDB
2007
ACM
16 years 3 months ago
2007
ACM
Estimating the cardinality (i.e. number of distinct elements) of an arbitrary set expression defined over multiple distributed streams is one of the most fundamental queries of in...
235
Voted
VLDB
2007
ACM
16 years 3 months ago
2007
ACM
We present STAR, a self-tuning algorithm that adaptively sets numeric precision constraints to accurately and efficiently answer continuous aggregate queries over distributed data...