All about Physical Layer of BI Admin Tool

Hi,
I am new to OBIE.Experts pls help me out.
What can be done in physical layer of Bi Admin tool?My Understanding is as below.
1.GET ALL DATABASE TABLES TO THIS LAYER .
2.CREATE PRIMARY KEYS.
3.Establish foreign key relationships.
Is there anything that can be done in this level?
Thanks-Bhaskar Gouda

Hi,
Also below points,
Cache - setting by table/time wise
Connection pool - increase the CP to improve performance...settings
Creating Views - like DB (deploy/undeploy view)
Creating Alias (replacement of circular join)
Including db features and importing table
Updating row count
creating hints also..etc
For more
http://docs.oracle.com/cd/E23943_01/bi.1111/e10540/physicallayer.htm#i1071375
Thanks
Deva

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