Materialized views are queries whose results are stored and maintained in order to facilitate
access to data in their underlying base tables. In the SQL setting, they are now considered a …

In recent years, the number of digital informa-tion storage and retrieval systems has
increased immensely. These information sources are gen-erally interconnected via some …

• ABSTRACT Though designing a data warehouse requires techniques completely different
from those adopted for operational systems, no significant effort has been made so far to …

Methods of designing a data warehouse (DW) usually assume that its structure is static. In
practice, however, a DW structure changes among others as the result of the evolution of …

In this paper, we address the issues related to the evolution and maintenance of data
warehousing systems, when underlying data sources change their schema capabilities …

One of the problems arising upon the evolution of a database schema is that some queries
and views defined on the previous schema version might no longer work properly. Thus …

This paper provides simulation practitioners and interested simulation consumers with a
grounding in how discrete-event simulation software works. Topics include discrete-event …

The construction and maintenance of data warehouses (views) in large-scale environments
composed of numerous distributed and evolving information sources (ISs) such as the WWW …

Materialized views can be maintained by submitting maintenance queries to the data
sources. However, the query results may be erroneous due to concurrent source updates …

In this paper, we discuss the problem of performing impact prediction for changes that occur
in the schema/structure of the data warehouse sources. We abstract Extract-Transform-Load …