How can i Extraxt the data form Data ware house to BI

Hello Gurus,
                     Our Requirement is to Extract the data from Data ware house( Informatica, Business objects)
How can i Extract and What r the steps follows
Regards

Hi Lakshmi,
You can use third party tools for extraction data from DW, like PowerCenter for Informatica , BusinessObjects Data Integrator for Business Objects. 
To use third-party source systems, you have to create RFC destinations from BW to an RFC server running on the third-party ETL server.
These tools usually work in a similar way. First, they extract data from the source database. Then, the tool stages the data in an intermediate database before loading it to the target system.
Transformations can occur at any point in the data flow, although you will usually want to store an untransformed copy of the data before significantly manipulating it.
Thanks

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