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What is the difference between a data lake and a data warehouse?

  1. A A lake stores raw data of any structure; a warehouse stores cleaned, modelled data
  2. B A lake is smaller
  3. C A warehouse holds unstructured data
  4. D They are identical
Answer

A lake stores raw data of any structure; a warehouse stores cleaned, modelled data

Lakes offer flexibility and low storage cost. Warehouses offer performance, governance and reliable definitions.

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