Nov 20, 2009

Data Warehouse Design

Data Warehouse can be designed in two different ways based on Ralph Kimball and Bill Inmon's model.
In Inmon's architecture data from OLTP databse is stored in a warehouse before it is transferred to the data marts. In Inmon's view the data warehouse is a real database.

According to Kimball's architecture data is transferred directly from OLTP database to the data mart. In Kimball's model the data warehouse is actually a collection of integrated data marts.


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benslin kard said...

Data warehousing creates one database, the number of sources can be nearly limitless, provided the system can handle the volume.

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