Explain briefly the term data mart
Explain briefly the term data mart?
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A data mart is a set of data smaller in size and scope than a data warehouse. This is dedicated to data from a specific business component of business functional region. A data mart may execute as a subset of a bigger data warehouse. Users of a data mart are generally knowledgeable analysts in the business region using the data mart.
Give a brief introduction of the term data cleaning?
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State the difference between OLTP and OLAP?
Explain the Normalizer transformation?
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Illustrates the term Merge Sort?
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Explain how do you produce the Sequence number within the Data stage?
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