10210 search results - page 1636 / 2042 » Configuring Database Systems |
198
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PODS
2007
ACM
16 years 7 months ago
2007
ACM
We consider the problem of optimizing and executing multiple continuous queries, where each query is a conjunction of filters and each filter may occur in multiple queries. When f...
218
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PODS
2008
ACM
16 years 7 months ago
2008
ACM
A schema mapping is a high-level specification that describes the relationship between two database schemas. As schema mappings constitute the essential building blocks of data ex...
181
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EDBT
2006
ACM
16 years 7 months ago
2006
ACM
In authorization-transparent access control, users formulate their queries against the database schema rather than against authorization views that transform and hide data. The Tru...
194
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EDBT
2006
ACM
16 years 7 months ago
2006
ACM
Current methods for selectivity estimation fall into two broad categories, synopsis-based and sampling-based. Synopsis-based methods, such as histograms, incur minimal overhead at ...
195
Voted
ICDE
2010
IEEE
16 years 6 months ago
2010
IEEE
Searching and extracting meaningful information out of highly heterogeneous datasets is a hot topic that received a lot of attention. However, the existing solutions are based on e...