1500 search results - page 195 / 300 » Query Optimization in Database Grid |
VLDB
2005
ACM
14 years 2 months ago
2005
ACM
Cost-based query optimizers need to estimate the selectivity of conjunctive predicates when comparing alternative query execution plans. To this end, advanced optimizers use multi...
SIGMOD
2004
ACM
14 years 9 months ago
2004
ACM
The rich dependency structure found in the columns of real-world relational databases can be exploited to great advantage, but can also cause query optimizers--which usually assum...
ISI
2008
Springer
13 years 9 months ago
2008
Springer
Pervasive information systems give an overview of what digital environments should look like in the future. From a data-centric point of view, traditional databases have to be used...
ICDE
2006
IEEE
14 years 10 months ago
2006
IEEE
K-Anonymity has been proposed as a mechanism for protecting privacy in microdata publishing, and numerous recoding "models" have been considered for achieving kanonymity...
VLDB
1999
ACM
14 years 1 months ago
1999
ACM
An important issue for federated systems of diverse data sources is optimizing cross-source queries, without building knowledge of individual sources into the optimizer. This pape...