84 search results - page 8 / 17 » Multi-source Materialized Views Maintenance: Multi-level Vie... |
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...
VLDB
1991
ACM
13 years 11 months ago
1991
ACM
It is widely recognized that production rules in database systems can be used to automatically maintain derived data such as views. However, writing a correct set of rules for e ci...
WAIM
2010
Springer
13 years 6 months ago
2010
Springer
Materialized views which are derived from base relations and stored in the database are often used to speed up query processing. In this paper, we leverage them in a traceable peer...
SIGMOD
1995
ACM
13 years 11 months ago
1995
ACM
We study the problem of e cient maintenance of materialized views that may contain duplicates. This problem is particularly important when queries against such views involve aggre...
VLDB
1997
ACM
13 years 11 months ago
1997
ACM
A data warehouse materializes views derived from data that may not reside at the warehouse. Maintaining these views e ciently in response to base updates is di cult, since it may ...