1 how are a data warehouse and a data mart related 2 why


Three things to consider, then research and post (please only do ONE and only ONE aspect of that ( in depth quality is better than vague overview of everything):

1. How are a data warehouse and a data mart related?

2. Why must data be "transformed" by the ETL process before loading them in the data warehouse?

3. How are multidimensional databases different from relational databases?

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Basic Computer Science: 1 how are a data warehouse and a data mart related 2 why
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