2217 search results - page 60 / 444 » Rank-aware Query Optimization |
133
Voted
DAWAK
2003
Springer
15 years 7 months ago
2003
Springer
We introduce a new method for optimization of SQL queries with nested subqueries. The method is based on the idea of Boolean aggregates, aggregates that compute the conjunction or ...
142
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SIGMOD
2012
ACM
13 years 4 months ago
2012
ACM
Query substitution is an important problem in information retrieval. Much work focuses on how to find substitutes for any given query. In this paper, we study how to efficiently ...
208
Voted
SIGMOD
2006
ACM
16 years 2 months ago
2006
ACM
We study the problem of finding efficient equivalent viewbased rewritings of relational queries, focusing on query optimization using materialized views under the assumption that ...
ICDE
2006
IEEE
15 years 8 months ago
2006
IEEE
In this paper, we study SQL queries with aggregate subqueries that share common tables and conditions with the outer query. While several approaches can deal with such queries, th...
113
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SEMWEB
2005
Springer
15 years 8 months ago
2005
Springer
Semantic query optimization (SQO) has been proved to be quite useful in various applications (e.g., data integration, graphical query generators, caching, etc.) and has been extens...