Question

What are surrogate keys in dimension tables?

a.

Keys with built-in meanings

b.

Keys mapped directly to operational system keys

c.

System-generated sequence numbers

d.

Keys primarily used for query performance

Posted under Data Warehousing and OLAP

Answer: (c).System-generated sequence numbers Explanation:Surrogate keys are system-generated sequence numbers without built-in meanings.

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Q. What are surrogate keys in dimension tables?

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