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- A Randomized Approach for the Incremental Design of an Evolving Data Warehouse
... views that determine its schema and its content in terms of the schema and the content of the data sources. DW applications ... against the cost of maintaining the materialized views. In an evolving DW application, new queries need to be answered by the DW. An ...
Publication - cat - 04/16/2013 - 04:49 - 0 comments - 1 attachment
- Schema evolution in data warehousing environments: a schema transformation-based approach
... 785.12 KB In heterogeneous data warehousing environments, autonomous data sources are ... data sources and the integrated database may be expressed in different modelling languages. It is possible for either the data source ... of the schema, or evolution of the modelling language in which the schema is expressed, or both. In such scenarios, it is important ...
Publication - cat - 04/15/2013 - 22:49 - 0 comments - 1 attachment