620 search results - page 11 / 124 » Algorithms for Rewriting Aggregate Queries Using Views |
175
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ICDE
2008
IEEE
16 years 1 months ago
2008
IEEE
We study the problem of answering XPATH queries using multiple materialized views. Despite the efforts on answering queries using single materialized view, answering queries using ...
VLDB
2005
ACM
15 years 5 months ago
2005
ACM
Prior work on computing queries from materialized views has focused on views defined by expressions consisting of selection, projection, and inner joins, with an optional aggrega...
103
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WEBDB
2000
Springer
15 years 3 months ago
2000
Springer
Rewriting queries using views is a powerful technique that has applications in data integration, data warehousing and query optimization. Query rewriting in relational databases i...
91
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ICDE
2010
IEEE
15 years 11 months ago
2010
IEEE
A fundamental problem in XML query processing is tree pattern query (TPQ) matching which computes all data instances in an XML database that match an input TPQ. There is a lot of r...
179
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ICDE
2005
IEEE
16 years 1 months ago
2005
IEEE
Resource Description Framework (RDF) is a rapidly expanding web standard. RDF databases attempt to track the massive amounts of web data and services available. In this paper, we ...