2546 search results - page 171 / 510 » Managing long-running queries |
195
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CIKM
2004
Springer
15 years 10 months ago
2004
Springer
Materialized views defined over distributed data sources are a well recognized technology for modern applications. Stateof-the-art incremental view maintenance requires O(n2 ) or ...
235
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ICDT
2012
ACM
13 years 9 months ago
2012
ACM
A universal model of a database D and a set Σ of integrity constraints is a database that extends D, satisfies Σ, and is most general in the sense that it contains sound and co...
278
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ICDE
2007
IEEE
16 years 8 months ago
2007
IEEE
Recently there has been increasing interest in the development of progress indicators for SQL queries. In this paper we present a lightweight online framework for this problem. Ou...
275
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VLDB
2001
ACM
16 years 6 months ago
2001
ACM
The problem of answering queries using views is to find efficient methods of answering a query using a set of previously materialized views over the database, rather than accessing...
280
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SIGMOD
2007
ACM
16 years 6 months ago
2007
ACM
Top-k processing in uncertain databases is semantically and computationally different from traditional top-k processing. The interplay between query scores and data uncertainty ma...