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What is the difference between ER Modelling vs Dimensional Modelling?

Answer»
ER ModellingDimensional Modelling
It SUPPORTS OLTPIt supports OLAP
ER Modelling is always normalizedDimensional Modelling is always denormalized
It removes the redundancy.It permits redundancy.
This model for ORGANIZATION or enterprise is very hard for PEOPLE to VISUALIZE and keep in their headsThis model is very EASY to understand.


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