713 search results - page 16 / 143 » A Learning Optimizer for a Federated Database Management Sys... |
VLDB
2004
ACM
15 years 3 months ago
2004
ACM
This demonstration shows an integrated query processing environment where users can seamlessly query both a data stream management system and a sensor network with one query expre...
104
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DASFAA
2009
IEEE
15 years 1 months ago
2009
IEEE
Abstract. Fine-grained lock protocols with lock modes and lock granules adjusted to the various XML processing models, allow for highly concurrent transaction processing on XML tre...
116
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VLDB
2002
ACM
14 years 9 months ago
2002
ACM
Complex database queries require the use of memory-intensive operators like sort and hashjoin. Those operators need memory, also referred to as SQL memory, to process their input ...
167
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SIGMOD
2005
ACM
15 years 9 months ago
2005
ACM
Although integrity constraints have long been used to maintain data consistency, there are situations in which they may not be enforced or satisfied. In this paper, we present Con...
IV
2010
IEEE
14 years 8 months ago
2010
IEEE
In this article we present an infrastructure for creating mash up visual representations of the user profile that combines data from different sources. We explored this approach ...