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Complements for Data Warehouses

Authors: 
Laurent, D.; Lechtenborger, J.; Spyratos, N.; Vossen, G.
Year: 
1999
Venue: 
15th Intl Conf. on Data Engineering (ICDE'99)

Views over databases have recently regained attention in the context of data warehouses, which are seen as materialized views. In this setting, efficient view maintenance is an important issue, for which the notion of self-maintainability has been identified as desirable. In this paper, we extend self-maintainability to (query and update) independence, and we establish an intuitively appealing connection between warehouse independence and view complements.

Monotonic complements for independent data warehouses

Authors: 
Laurent, D.; Lechtenboerger, J.; Spyratos, N.; Vossen, G.
Year: 
2001
Venue: 
VLDBJ

Views over databases have regained attention in the context of data warehouses, which are seen as materialized views. In this setting, efficient view maintenance is an important issue, for which the notion of self-maintainability has been identified as desirable. In this paper, we extend the concept of self-maintainability to (query and update) independence within a formal framework, where independence with respect to arbitrary given sets of queries and updates over the sources can be guaranteed.

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