2724 search results - page 88 / 545 » Optimizing Queries on Files |
154
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CIKM
2007
Springer
15 years 7 months ago
2007
Springer
We investigate the problem of how to evaluate, fast and efficiently, classes of optimal route queries on a massive graph in a unified framework. To evaluate a route query effectiv...
149
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CORR
1999
Springer
15 years 2 months ago
1999
Springer
Complex queries are becoming commonplace, with the growing use of decision support systems. These complex queries often have a lot of common sub-expressions, either within a singl...
127
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VLDB
1993
ACM
15 years 7 months ago
1993
ACM
III this paper we address the problem of controlling the execution of a query optimizer. We describe a control for the optimization process that is based on planning. The controll...
136
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SIGMOD
2009
ACM
15 years 10 months ago
2009
ACM
The state of the art commercial query optimizers employ cost-based optimization and exploit dynamic programming (DP) to find the optimal query execution plan (QEP) without evalua...
129
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SIGMOD
1993
ACM
15 years 7 months ago
1993
ACM
The traditional focus of relational query optimization schemes has been on the choice of join methods and join orders. Restrictions have typically been handled in query optimizers ...