Question

What is the purpose of the staging area in the data acquisition process of a data warehouse?

a.

To store the extracted data indefinitely

b.

To serve as the final repository for data in the data warehouse

c.

To perform data transformations and cleansing on extracted data before loading it into the data warehouse

d.

To create flat files from the extracted data

Posted under Data Warehousing and OLAP

Answer: (c).To perform data transformations and cleansing on extracted data before loading it into the data warehouse Explanation:The staging area in the data acquisition process of a data warehouse is where extracted data is prepared for loading into the data warehouse. This involves data transformations, data cleansing, and various other data preparation tasks.

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Q. What is the purpose of the staging area in the data acquisition process of a data warehouse?

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