Question

What is a factless fact table?

a.

A fact table with missing data

b.

A fact table that contains only the number one

c.

A fact table that lacks primary keys

d.

A fact table that doesn't need dimension tables

Posted under Data Warehousing and OLAP

Answer: (b).A fact table that contains only the number one Explanation:A factless fact table contains rows where the presence of a corresponding row itself represents an event, often indicated by the number one.

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