Question

What type of changes involve preserving historical data in dimension tables?

a.

Type 1 changes

b.

Type 2 changes

c.

Type 3 changes

d.

All types of changes

Posted under Data Warehousing and OLAP

Answer: (b).Type 2 changes Explanation:Type 2 changes involve preserving historical data in dimension tables.

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Q. What type of changes involve preserving historical data in dimension tables?

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