1933 search results - page 6 / 387 » Query Containment Using Views |
95
Voted
DATESO
2007
14 years 11 months ago
2007
Boyer-Moore-Horspool (BMH) algorithm is commonly used to solve text searching problems. In this paper is used to solve the constraint subset of XPath queries offering effective alg...
VLDB
2005
ACM
15 years 2 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...
ERSHOV
2009
Springer
15 years 4 months ago
2009
Springer
Abstract. We consider the problem of query containment for conjunctive queries with safe negation property. A necessary and sufficient condition for two queries to be in containmen...
163
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VLDB
2007
ACM
15 years 9 months ago
2007
ACM
The performance of XML database queries can be greatly enhanced by rewriting them using materialized views. We study the problem of rewriting a query using materialized views, whe...
183
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VLDB
2007
ACM
15 years 9 months ago
2007
ACM
Views over probabilistic data contain correlations between tuples, and the current approach is to capture these correlations using explicit lineage. In this paper we propose an al...