873 search results - page 1 / 175 » Updates and View Maintenance |
ER
1999
Springer
13 years 8 months ago
1999
Springer
During the process of updating a database, two interrelated problems could arise. On one hand, when an update is applied to the database, integrity constraints could become violat...
ICDE
2004
IEEE
14 years 5 months ago
2004
IEEE
Data integration over multiple heterogeneous data sources has become increasingly important for modern applications. The integrated data is usually stored in materialized views fo...
RTDB
2001
13 years 5 months ago
2001
A database system contains base data items which record and model a physical, real world environment. For better decision support, base data items are summarized and correlated to...
EDBT
2002
ACM
14 years 4 months ago
2002
ACM
An important issue in data integration is the integration of semantically equivalent but schematically heterogeneous data sources. Declarative mechanisms supporting powerful source...
DOLAP
2005
ACM
13 years 6 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 ...