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Question

What does data staging in a data warehouse involve?

a.

Creating backup copies of the data warehouse repository

b.

Sorting and merging files

c.

Creating common application codes for data extraction

d.

Mapping input data to the data warehouse repository

Answer: (b).Sorting and merging files Explanation:Data staging in a data warehouse involves sorting and merging files, preparing data for loading into the data warehouse repository.

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Q. What does data staging in a data warehouse involve?

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