3225 search results - page 451 / 645 » Query Optimization by Stored Queries |
187
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ICDE
2012
IEEE
13 years 9 months ago
2012
IEEE
— We consider how to support a large number of users over a wide-area network whose interests are characterized by range top-k continuous queries. Given an object update, we need...
189
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JACM
2012
13 years 9 months ago
2012
A fundamental problem in data management is to draw and maintain a sample of a large data set, for approximate query answering, selectivity estimation, and query planning. With la...
298
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ICDE
1996
IEEE
16 years 7 months ago
1996
IEEE
This paper presents a difference calculus for determining changes to rule conditions in an active DBMS. The calculus has been used for implementing an algorithm to efficiently mon...
171
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EDBT
2008
ACM
16 years 6 months ago
2008
ACM
Data Stream Management Systems (DSMSs) must support optimized execution scheduling of multiple continuous queries on massive, and frequently bursty, data streams. Previous approac...
198
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SIGMOD
1993
ACM
15 years 10 months ago
1993
ACM
We describe the design and implementation of the Glue-Nail database system. The Nail language is a purely declarative query language; Glue is a procedural language used for nonque...