716 search results - page 103 / 144 » Optimizing Queries in Extended Relational Databases |
116
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DAWAK
2009
Springer
15 years 3 months ago
2009
Springer
Abstract. In the last years, extending OLAP (On-Line Analytical Processing) systems with spatial and temporal features has attracted the attention of of the GIS (Geographic Informa...
SIGMOD
2005
ACM
15 years 4 months ago
2005
ACM
Appropriately selected materialized views (also called indexed views) can speed up query execution by orders of magnitude. Most database systems limit support for materialized vie...
107
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FQAS
2004
Springer
15 years 3 months ago
2004
Springer
In the context of relational as well as deductive databases, correct and efficient integrity checking is a crucial issue, as, without any guarantee of data consistency, the answers...
106
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PPDP
2010
Springer
14 years 9 months ago
2010
Springer
Given a set of Datalog rules, facts, and a query, answers to the query can be inferred bottom-up starting with the facts or top-down starting with the query. For efficiently answe...
SIGMOD
1999
ACM
15 years 3 months ago
1999
ACM
Several techniques that compute the join between two spatial datasets have been proposed during the last decade. Among these methods, some consider existing indices for the joined...