21st September, 2018
A schema is nothing but a collection of objects
A star schema design is a data base design where the centrally located table is called fact table with surrounded by number of dimensional tables
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Snow flake schema:
|Star schema||Snow flake schema|
|It is de normalizedRetrieval up data is faster redundancy is there||it is normalizedRetrieval up data is slower due to more number of icons redundancy can be reduced|
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