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 Informatica  |  Question 598 of 631    Print  
Fact Table - Grain Facts
What are Grain Facts?


  
Total Answers and Comments: 2 Last Update: May 10, 2008     Asked by: sarun5 
  
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February 18, 2008 02:40:33   #1  
Deepak Rajumar Member Since: February 2008   Contribution: 1    

RE: Fact Table - Grain Facts
Facts are tables that refer to the dimension tables for details. Facts always hold the foreign keys. Grains are the maximum possible information that can be derived and the maximum possible level of information that can be derived or prodicted form any dimension.please let me know if you have any other option.
 
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May 10, 2008 05:09:45   #2  
aniban Member Since: May 2008   Contribution: 3    

RE: Fact Table - Grain Facts
Deepak's answer is correct - just rewording the way I see it. Grain of the fact table represents the most granular information you can get from that table. Typically it is the combination of the different dimensions present in the fact table. So, if you have a revenue table with store_id, product_id, customer_id, date_id as dimension and $ value and qty as facts, the grain of this table is per store per product per customer per day.
 
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