Question

What are the defining features of a data warehouse?

a.

Small, independent, and isolated

b.

Integrated, isolated, and transactional

c.

Separate, subject-oriented, integrated, time-variant, and nonvolatile

d.

Independent, operational, and real-time

Posted under Data Warehousing and OLAP

Answer: (c).Separate, subject-oriented, integrated, time-variant, and nonvolatile Explanation:The defining features of a data warehouse are separate, subject-oriented, integrated, time-variant, and nonvolatile.

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