Question: What is the major difference between a data warehouse and a data mart? Group of answer choices Data warehouse mainly collects data from different databases,

What is the major difference between a data warehouse and a data mart?
Group of answer choices
Data warehouse mainly collects data from different databases, whereas data mart does not collect any data.
None of these.
Data mart mainly focuses on a single subject or functional organization area, and contains a subset of data warhouse information.
Data warehouse is mainly used to support decision making, whereas data mart is not.
Data mart mainly focuses on data aggregation, whereas data warehouse does not focus on data aggregation.

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