When a database is defined as views over autonomous sources, inconsistencies with respect to global integrity constraints are to be expected. This paper investigates the possibili...
A data warehouse stores materialized views over data from one or more sources in order to provide fast access to the integrated data, regardless of the availability of the data so...
A warehouse is a repository of integrated information drawn from remote data sources. Since a warehouse e ectively implements materialized views, we must maintain the views as the...
Yue Zhuge, Hector Garcia-Molina, Joachim Hammer, J...
Warehouse view self-maintenance refers to maintaining materialized views at a data warehouse without accessing source data. Self-maintenance has been studied for nontemporal views...
A Data Warehouse (DW) can be used to integrate data from multiple distributed data sources. A DW can be seen as a set of materialized views that determine its schema and its conten...