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How do I transition to a Data Warehouse or mart?

Currently - I have a Transactional database updated daily with ETL. This infromation is used by a cube.

Desired - Multidimensional database with a cube.

Do I maintain the Transactional database and populate the Multidimensional database with the Transactional database?  Or, would I remove the transactional database and move the ETL over to just populate multidimensional database directly?
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rhservan
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Hello anybody out there?
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oleggold
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If Your data quantity is VLDB then DWH with highly ummarized facts is better,when on other hand Your data needs to be constantly updated and then viewed multidimensionaly once a while the currend model is probably th best OLTP + CUBE
data will need to be updated constantly and viewed as needed & with notifications prompting for users to view.  


Also,  can your relay with terminolgy for scenario.