Rosana L. de B. A. Rocha

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In a data warehouse (DW) environment, when the operational environment does not posses or does not want to inform the data about the changes that occurred, controls have to be implemented to enable detection of these changes and to reflect them in the DW environment. The main scenarios are: i) the impossibility to instrument the DBMS (triggers, transaction(More)
The ETLM process (extraction, transformation, load, and materialization) comprises the basis for data acquisition and organization of a data warehouse (DW) environment. In the DW area, a well-known issue consists of the detection of changes in source data. This problem arises when the data source does not possess or does not provide the information about(More)
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