Transforming OLTP Relational Database to Data Warehousing Model

Posted by Russ Cam on Stack Overflow See other posts from Stack Overflow or by Russ Cam
Published on 2009-05-15T11:55:44Z Indexed on 2010/06/16 8:22 UTC
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sql-server

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data-warehouse

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oltp

What are the common design approaches taken in loading data from a typical Entity-Relationship OLTP database model into a Kimball star schema Data Warehouse/Marts model?

Do you use a staging area to perform the transformation and then load into the warehouse?
How do you link data between the warehouse and the OLTP database?
Where/How do you manage the transformation process - in the database as sprocs, dts/ssis packages, or SQL from application code?

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