Abstract. Access control policies are security policies that govern access to resources. Real-time update of access control policies, that is, updating policies while they are in e...
We consider the view maintenance problem in a web-based environment, in which clients query information from databases, stored in the form of materialized data warehouses, without...
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 ...
: The classical (Bancilhon-Spyratos) correspondence between view update translations and views with a constant complement reappears more generally as the correspondence between upd...
Michael Johnson, Robert D. Rosebrugh, Richard Wood
Many papers have examined how to e ciently export a materialized view but to our knowledge none have studied how to e ciently import one. To import a view, i.e., to install a stre...