Question

Why is metadata essential for building a data warehouse?

a.

It helps data extraction experts understand data extraction tools.

b.

It assists database administrators in managing source system data content.

c.

It provides data warehouse developers with a list of source-to-target mappings.

d.

It is needed for tasks related to source systems, source-to-target mappings, and data transformations.

Posted under Data Warehousing and OLAP

Answer: (d).It is needed for tasks related to source systems, source-to-target mappings, and data transformations. Explanation:Metadata is essential for building a data warehouse because it is needed for tasks related to source systems, source-to-target mappings, and data transformations.

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