2987 search results - page 229 / 598 » Multiobjective Query Optimization |
104
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BNCOD
1997
15 years 3 months ago
1997
With the substantial change of declarative query languages from plain SQL to the so-called \object SQLs", in particular OQL, there has surprisingly been not much change in the...
216
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ICDE
2003
IEEE
16 years 3 months ago
2003
IEEE
Query optimizers use base-table statistics to derive statistics on the sub-plans that are enumerated during optimization. In practice, traditional optimizers rely on a number of s...
150
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ADHOCNOW
2008
Springer
15 years 3 months ago
2008
Springer
This paper presents a novel method for optimizing sliding window based continuous queries. We deal with two categories of aggregation operations: stepwise aggregation (e.g. COUNT) ...
117
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FQAS
2006
Springer
15 years 5 months ago
2006
Springer
We consider the problem of optimizing processing of batches of frequent itemset queries. The problem is a particular case of multiple-query optimization, where the goal is to minim...
119
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DLOG
2003
15 years 3 months ago
2003
This paper presents an application of a DL reasoner to the optimization of an object-relational query language. Queries containing aggregate functions are difficult to optimize be...