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Data Warehousing 2
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_______ is always at the Centre of star schema
Options
- Fact table
- Dimension
- Attribute
- Attribute hierarchies
CORRECT ANSWER : Fact table
Discussion Board
Fact table
Fact table is always at the Centre of star schema. Fact tables record measurements or metrics for a specific event. Fact tables generally consist of numeric values, and foreign keys to dimensional data where descriptive information is kept. Fact tables are designed to a low level of uniform detail (referred to as "granularity" or "grain"), meaning facts can record events at a very atomic level.
Prajakta Pandit 03-17-2017 02:33 AM
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