Need answers to Questions

Hi Experts,

I have some questions

1.How to create a Primary Key for a File in BODS using File Format ?

2. I am not able to see target template in the Audit when i right Click on Dataflow do we need to change any setting ?

3.How to load data to ECC 6.0 ?

4.how to extract data from ABAP Dataflow using which transform ?

5.Load Flat file to BW ?

6.Difference between Extended star schema and snow flake schema ?

7.Any Document for BODS Security and CMC ?

Thanks

Madhu