410 search results - page 21 / 82 » Optimizing Queries with Materialized Views |
VLDB
2005
ACM
15 years 3 months ago
2005
ACM
SQL extensions that allow queries to explicitly specify data quality requirements in terms of currency and consistency were proposed in an earlier paper. This paper develops a dat...
188
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ICDE
2007
IEEE
15 years 11 months ago
2007
IEEE
We study the problem of answering queries posed on virtual views of XML documents, a problem commonly encountered when enforcing XML access control and integrating data. We approa...
ER
2003
Springer
15 years 2 months ago
2003
Springer
Many Internet-based applications have adopted XML as the standard data exchange format. These XML data are typically stored in its native form, thus creating the need to present XM...
106
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DOLAP
2005
ACM
14 years 11 months ago
2005
ACM
Materialized views are nowadays commonly used in the data warehouse environment. Materialized views need to be updated when data sources change. Since the update of the views may ...
SIGMOD
1998
ACM
15 years 1 months ago
1998
ACM
The Relational On-Line Analytical Processing (ROLAP) is emerging as thedominant approach in data warehousing with decision support applications. In order to enhance query performa...