716 search results - page 36 / 144 » Optimizing Queries in Extended Relational Databases |
106
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BTW
2007
Springer
15 years 7 months ago
2007
Springer
: Statistics that accurately describe the distribution of data values in the columns of relational tables are essential for effective query optimization in a database management sy...
197
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ICDE
2008
IEEE
16 years 3 months ago
2008
IEEE
In this paper we address the problem of minimizing the response time of a multi-way join query using pipelined (inter-operator) parallelism, in a parallel or a distributed environ...
133
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DPD
2002
15 years 1 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...
103
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EFDBS
2000
15 years 3 months ago
2000
A main problem of data integration is the treatment of conflicts caused by different modeling of real-world entities, different data models or simply by different representations ...
118
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EDBT
2006
ACM
16 years 1 months ago
2006
ACM
Scientific data in the life sciences is distributed over various independent multi-format databases and is constantly expanding. We discuss a scenario where a life science research...