Post by Admin on Mar 24, 2014 6:40:59 GMT
Basic diff is E-R modeling will have logical and physical model. Dimensional model will have only physical model.
E-R modeling is used for normalizing the OLTP database design.
Dimensional modeling is used for de-normalizing the ROLAP/MOLAP design.
E-R modeling is used for normalizing the OLTP database design.
Dimensional modeling is used for de-normalizing the ROLAP/MOLAP design.