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What's the difference between ER Modeling and Dimensional Modeling?

Warehousing
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Question added by ALI ABDULLAH HASAN AL-KHAFAJI , Warehouse & Logistics Manager , Earth link Telecom
Date Posted: 2014/06/15
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Rudramoorthy M
by Rudramoorthy M , Excutive , Ncr Corporation

ER Model is utilized for OLTP databases that uses any of the 1st or 2nd or 3rd normal forms, where as dimensional data model is used for data warehousing and uses 3rd normal form

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