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Question

What is the primary motivation for creating aggregate or summary tables in a data warehouse?

a.

To store detailed records

b.

To improve performance for summary queries

c.

To limit the number of dimension tables

d.

To minimize the number of fact table rows

Answer: (b).To improve performance for summary queries Explanation:The primary motivation for creating aggregate or summary tables in a data warehouse is to improve performance for summary queries.

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Q. What is the primary motivation for creating aggregate or summary tables in a data warehouse?

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