259 search results - page 11 / 52 » Using Relational Database Constraints to Design Materialized... |
VLDB
2007
ACM
14 years 7 months ago
2007
ACM
The performance of XML database queries can be greatly enhanced by rewriting them using materialized views. We study the problem of rewriting a query using materialized views, whe...
ICDE
2006
IEEE
14 years 8 months ago
2006
IEEE
We consider the problem of creating a sample view of a database table. A sample view is an indexed, materialized view that permits efficient sampling from an arbitrary range query...
DOLAP
2005
ACM
13 years 9 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 ...
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 ...
DEXAW
1998
IEEE
13 years 11 months ago
1998
IEEE
Materialized views offer opportunities for significant performance gain in query evaluation by providing fast access to pre-computed data. The question of when and how to use a ma...