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» Generating Databases for Query Workloads
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BTW
2005
Springer
113views Database» more  BTW 2005»
14 years 2 months ago
A Learning Optimizer for a Federated Database Management System
: Optimizers in modern DBMSs utilize a cost model to choose an efficient query execution plan (QEP) among all possible ones for a given query. The accuracy of the cost estimates de...
Stephan Ewen, Michael Ortega-Binderberger, Volker ...
SIGMOD
2010
ACM
209views Database» more  SIGMOD 2010»
14 years 1 months ago
ProgXe: progressive result generation framework for multi-criteria decision support queries
We demonstrate ProgXe, a practical approach to support MultiCriteria Decision Support (MCDS) applications that need to report results as they are being generated to enable the use...
Venkatesh Raghavan, Elke A. Rundensteiner
ICDE
1999
IEEE
113views Database» more  ICDE 1999»
14 years 9 months ago
Capability-Sensitive Query Processing on Internet Sources
On the Internet, the limited query-processing capabilities of sources make answering even the simplest queries challenging. In this paper, we present a scheme called GenCompact fo...
Hector Garcia-Molina, Wilburt Labio, Ramana Yernen...
VLDB
2003
ACM
123views Database» more  VLDB 2003»
14 years 8 months ago
A case for fractured mirrors
The Decomposition Storage Model (DSM) vertically partitions all attributes of a given relation. DSM has excellent I/O behavior when the number of attributes touched in the query i...
Ravishankar Ramamurthy, David J. DeWitt, Qi Su
ICFEM
2009
Springer
14 years 3 months ago
Symbolic Query Exploration
Abstract. We study the problem of generating a database and parameters for a given parameterized SQL query satisfying a given test condition. We introduce a formal background theor...
Margus Veanes, Pavel Grigorenko, Peli de Halleux, ...