712 search results - page 12 / 143 » Decoupled Query Optimization for Federated Database Systems |
132
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SIGMOD
2009
ACM
15 years 9 months ago
2009
ACM
Commercial database systems expose query hints to fix poor plans produced by the query optimizer. However, current query hints are not flexible enough to deal with a variety of no...
AINA
2009
IEEE
15 years 2 months ago
2009
IEEE
This work describes a generic database service for the lightweight Venice Service Grid, which has been developed at the University of Kaiserslautern, Germany. By using Web service...
100
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SIGMOD
1993
ACM
15 years 1 months ago
1993
ACM
Abstract: We propose a framework for the specification of extensible database systems. A particular goal is to implement a software component for parsing and rule-based optimizatio...
DPD
2002
14 years 9 months ago
2002
A major cost in executing queries in a distributed database system is the data transfer cost incurred in transferring relations (fragments) accessed by a query from different sites...
116
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ICDE
2006
IEEE
15 years 3 months ago
2006
IEEE
We consider the problem of query optimization in distributed stream based systems where multiple continuous queries may be executing simultaneously. In such systems, distribution ...