Explaining data warehouse
Explain in brief the term data warehouse.
Expert
Data warehouse is defined as a repository of the different heterogeneous data sources that is organized under the unified schema at a single site in order to facilitate the management decision making.
(or)
A data warehouse is defined as the subject-oriented, time-variant and non-volatile collection of the data in support of management’s decision-making procedure.
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Specify some of the different @ Functions?
Explain what is meant by the repository and what does it consists of?
Define the term merge stage?
State the use of data stage jobs?
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