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Question

What is a practical approach when designing aggregation strategies in a data warehouse?

a.

Create a large number of aggregate tables initially.

b.

Continuously adjust and revise aggregates based on evolving user needs.

c.

Keep aggregates hidden from end-users.

d.

Focus exclusively on deriving new dimensions for the aggregates.

Answer: (b).Continuously adjust and revise aggregates based on evolving user needs. Explanation:A practical approach to designing aggregation strategies involves continuously adjusting and revising aggregates based on evolving user needs.

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Q. What is a practical approach when designing aggregation strategies in a data warehouse?

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