995 search results - page 179 / 199 » Optimization of Complex Nested Queries in Relational Databas... |
117
Voted
CIKM
2005
Springer
15 years 7 months ago
2005
Springer
Accurately and efficiently estimating the number of distinct values for some attribute(s) or sets of attributes in a data set is of critical importance to many database operation...
100
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CORR
2008
Springer
15 years 1 months ago
2008
Springer
With the rise of XML as a standard for representing business data, XML data warehouses appear as suitable solutions for Web-based decision-support applications. In this context, i...
102
Voted
WWW
2001
ACM
16 years 2 months ago
2001
ACM
Integrity constraints are an essential part of a modern schema definition language. They are useful for semantic specification, update consistency control, query optimization, inf...
96
Voted
DAWAK
1999
Springer
15 years 6 months ago
1999
Springer
A Data Warehouse DW can be abstractly seen as a set of materialized views de ned over relations that are stored in distributed heterogeneous databases. The selection of views for...
124
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DELOS
2000
15 years 3 months ago
2000
Stand-alone ranking systems based on highly optimized inverted file structures are generally considered `the' solution for building search engines. Observing various developm...