2546 search results - page 74 / 510 » Managing long-running queries |
211
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WWW
2003
ACM
15 years 11 months ago
2003
ACM
In this poster, we introduce the mechanism of handling the ordering structure of XML data by using the Nested Relational Sequence Database System (NRSD), which is built upon the N...
202
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DEXA
2009
Springer
15 years 9 months ago
2009
Springer
Peer-to-Peer (P2P) data integration combines the P2P infrastructure with traditional scheme-based data integration techniques. Some of the primary problems in this research area ar...
184
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CIKM
2007
Springer
15 years 10 months ago
2007
Springer
We consider a distributed information system that allows autonomous consumers to query autonomous providers. We focus on the problem of query allocation from a new point of view, ...
162
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PODS
2006
ACM
16 years 6 months ago
2006
ACM
Query containment is a fundamental algorithmic problem in database query processing and optimization. Under set semantics, the query-containment problem for conjunctive queries ha...
164
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SIGMOD
2010
ACM
15 years 11 months ago
2010
ACM
Many advanced data management operations (e.g., incremental maintenance, trust assessment, debugging schema mappings, keyword search over databases, or query answering in probabil...