I have got few questions about In-App Purchase server model.
I have got my DB, and a table in which I store item description. For example, I\'ve got a Sword priced $
This tutorial provides clear step by step means to implement in-app purchases from scratch... After going through countless others, the examples here should cover your questions.
http://troybrant.net/blog/2010/01/in-app-purchases-a-full-walkthrough/