Reporting on ODS or CUBE

Question

Hello Bi Gurus,
I am learning BI, my question is when we go for reporting on ODS and when we go for reporting on CUBE.
if ask the question in an interview what is the suitable answer.

Answer 1

Hi
1. We go for ODS when we required updated values of our report or application .
2. If our report is scheduled by process chain and schedulation is done after each 1 hour or within a day then we go for ODS beacause in this case if we using cube then after each schedulation our keyfigures values double and result is wrong data at BEx but in this case if we use ODS then that type of problem never occured .
3.We use ODS as data provider for other objects whose wants updated values each and every time.
4.We easly define Key fields and data fields in ODS.
5.Transctional ODS is used for data mart so its gud option for us if we trying to create Sales report or Retail type of reports.
5. We go for Cube if amount of data is hudge beacause in this same case if we create ODS for our requirment where data amount is hudge it create 3-tables activation queue ,active data and change log table thats why it takes to much time for data display and amount of data 3-times greater then real data so we always go for Cube for reporting .
6. Archiving is easy in Cube so we easly take back of our Old data .
I think this information helps you
Please assign Points....... if your query resolved
Thanks
Ankit modi
Edited by: Ankit modi on Jul 3, 2008 8:20 AM