I want to separate eCommerce & Online Marketing module data into different database.
How can i proceed to this.
So it looks like you updated your initial question. To answer a couple of your questions you initially had:
Separating the database does not change where the web requests come into. The only way to spread out those requests that I'm aware of is to implement a web farm.
I assume that you are looking for this, Separating the contact management database
Please, sign in to be able to submit a new answer.