Universe on an OLTP database

Hi All,
I am using BO XIR2.
I wanted to know what is the best way/approach to create a universe on an OLTP database.
The database is highly normalized.
I pulled in the required tables and added joins. In order to resolve loops I uncluded contexs and some aliases.
Now when I create a test report, it results in mostly all incompatible objects.
I think the approach i am using to create the universe is that of a datawarehouse(denormalised) database.
And thus is resulting in a bad structure.
Can anyone help me on the approach to be followed to create a universe on a highly normalised database?
Are there any restirctions in such a universe for reporting?
Please help. '
Thanks in advance,
Edited by: BO User on Sep 16, 2009 10:58 PM
Edited by: BO User on Sep 16, 2009 10:58 PM

Hi,
The objects in a context should be under the same class.
Since you are using OLTP database, you will not have a proper data model as we have in a datawarehouse.
Try to include the necessary joins for your reports and remove unnecessary joins as it will lead to more loops.
Try to use views wherever needed.
Avoid using more derived tables in your Universe as it will lead to performance issues. Use derived tables when you are not able to acheive something in the normal join approach and when you need a quick solution.
Regards,
Santhosh

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