72 search results - page 3 / 15 » View Maintenance in a Warehousing Environment |
DPD
1998
13 years 7 months ago
1998
A warehouse is a data repository containing integrated information for e cient querying and analysis. Maintaining the consistencyof warehouse data is challenging, especially if the...
IEEECIT
2005
IEEE
14 years 1 months ago
2005
IEEE
To make a web warehouse reflect the real web accurately, we should keep timeliness, freshness and consistency for the webviews. This paper fouses on one important part of webview...
ICDE
2007
IEEE
14 years 9 months ago
2007
IEEE
Queries containing outer joins are common in data warehousing applications. Materialized outer-join views could greatly speed up many such queries but most database systems do not...
SIGMOD
1997
ACM
13 years 11 months ago
1997
ACM
Data warehouses store materialized views over base data from external sources. Clients typically perform complex read-only queries on the views. The views are refreshed periodical...
ICDE
2005
IEEE
14 years 9 months ago
2005
IEEE
Data warehousing and on-line analytical processing (OLAP) are essential for decision support applications. Common OLAP operations include for example drill down, roll up, pivot an...