A data warehouse is a logical collection of information, gathered from many different operational databases, that supports business analysis activities and decision-making tasks.
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Q27: The complete removal of dirty data from
Q28: Which of the following is a problem
Q29: A data mart contains a subset of
Q30: ETL, within a data warehouse model, stands
Q31: One example of a data aggregation is
Q33: A data miner contains a subset of
Q34: A data warehouse is a central location
Q35: According to Gartner Inc., dirty data is
Q36: A central location in which data is
Q37: Data aggregation is the collection of data
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