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Question

When is overwriting of dimension table attributes considered appropriate in a data warehouse?

a.

Always

b.

Never

c.

It depends on the type of change and information preservation.

d.

Only for dimension tables with few attributes

Answer: (c).It depends on the type of change and information preservation. Explanation:Overwriting of dimension table attributes is not always the appropriate option in a data warehouse, and it depends on the type of change and what information must be preserved.

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Q. When is overwriting of dimension table attributes considered appropriate in a data warehouse?

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