Data warehousing is a booming industry with many interesting research problems. The
database research community has concentrated on only a few aspects. In this paper, We …

• Bases de datos relacionales (Capítulos 4 al 7). El Capítulo 4 se centra en el lenguaje
relacional orientado al usuario de mayor influencia: SQL. El Capítulo 5 cubre otros dos …

What is a view? A view is a derived relation defined in terms of base (stored) relations. A
view thus defines a function from a set of base tables to a derived table; this function is …

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 …

Modern database management systems essentially solve the problem of accessing and
managing large volumes of related data on a single platform, or on a cluster of tightly …

We report on a community effort between industry and academia to shape the future of
property graph constraints. The standardization for a property graph query language is …

Data warehouses contain large amounts of information, often collected from a variety of
independent sources. Decision-support functions in a warehouse, such as on-line analytical …

Materialized views have been found to be very effective at speeding up queries, and are
increasingly being supported by commercial databases and data warehouse systems …

Pre-computation and materialization of views with aggregate functions is a common
technique in Data Warehouses. Due to the complex structure of the warehouse and the …

We present incremental view maintenance algorithms for a data warehouse derived from
multiple distributed autonomous data sources. We begin with a detailed framework for …