MAKING MULTIPLE VIEWS SELF-MAINTAINABLE IN A DATA WAREHOUSE
Liang, Weifa; Li, Hui; Wang, Hui; Orlowska, Maria
A data warehouse collects and maintains a large amount of data from several distributed and heterogeneous data sources. Often the data is stored in the form of materialized views in order to provide fast access to the integrated data, regardless of the availability of the data sources. In this paper we focus on the following problem: for a given set of materialized select-project-join (SPJ) views, how can we find and minimize the auxiliary data stored in a data warehouse in order to make all...[Show more]
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|Source:||Data and Knowledge Engineering|
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