Why Star Schema is de-normalized? Please explain in detail
probably with some examples.
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Answer Posted / kumar
Star Schema is centally Located by Fact Table surrounded by
Dimension Tables, hence it resembles Star so we call it
as "Star Schema"
Here We use the De-Normalized tables, If we use Normalizewd
tables that prefer the Snow-Flake Schema.
In Star Schema we have the less no. of tables, so we have
the duplicate records with non key attributes.
For further Reference, Please go through the below URL.
http://datawarehouse4u.info/Data-warehouse-schema-
architecture-star-schema.html
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