2191 search results - page 102 / 439 » Query Processing in the ROL system |
149
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PODS
2010
ACM
15 years 9 months ago
2010
ACM
Both semantic and type-based query optimization rely on the idea that queries often exhibit non-trivial rewritings if the state space of the database is restricted. Despite their ...
130
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SIGMOD
2010
ACM
15 years 9 months ago
2010
ACM
Parameterized queries are commonly used in database applications. In a parameterized query, the same SQL statement is potentially executed multiple times with different parameter ...
121
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DOOD
1995
Springer
15 years 8 months ago
1995
Springer
Wrappers provide access to heterogeneous information sources by converting application queries into source speci c queries or commands. In this paper we present a wrapper implemen...
121
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INFFUS
2007
15 years 4 months ago
2007
Previous approaches in query processing do not consider queries to automatically combine results obtained from different information sources, i.e. they do not support information...
157
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SIGMOD
2006
ACM
15 years 10 months ago
2006
ACM
Although approximate query processing is a prominent way to cope with the requirements of data analysis applications, current database systems do not provide integrated and compre...