Oracle Database Discussions

Hi Experts,

I'm not exactly getting the difference between the criteria which decide how to create a Fact table and Dimension table.

This link http://stackoverflow.com/questions/9362854/database-fact-table-and-dimension-table states :

Fact table contains data that can be aggregate. 
Measures are aggregated data expressions (e. Sum of costs, Count of calls, ...)
Dimension contains data that is use to generate groups and filters.

This's fine but how does one decide which columns to consider for Fact table and which columns for Dimension table?

Any help is much appreciated.

Pardon me if this's not the correct place for this question. My first question in the new forum.

Thanks and Regards,

Ranit Biswas