Question

How do dimension tables change over time in a data warehouse?

a.

They grow in size with new rows.

b.

They are updated with changes.

c.

They are constant over time.

d.

They are not used in a data warehouse.

Posted under Data Warehousing and OLAP

Answer: (a).They grow in size with new rows. Explanation:Dimension tables can change over time by growing in size with new rows and by being updated with changes to their attributes.

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Q. How do dimension tables change over time in a data warehouse?

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