Question

When including data from outside sources in a data warehouse, what is the process?

a.

Directly move the data to the data warehouse repository.

b.

Create temporary files to hold the data, reformat and rearrange the data elements, and move the data to the staging area.

c.

Extract the data and load it into the data warehouse repository.

d.

Use the source data directly without any modification.

Posted under Data Warehousing and OLAP

Answer: (b).Create temporary files to hold the data, reformat and rearrange the data elements, and move the data to the staging area. Explanation:When including data from outside sources in a data warehouse, the process involves creating temporary files to hold the data, reformatting and rearranging the data elements, and then moving the data to the staging area.

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