How does Core Data work

Ive tried to gather information on as to how core data works, but can someone give me a clear explanation of all the stuff required...For开发者_C百科 instance NSDataContext, Fetchcontroller, NSDataModel, Presistent...

Perhaps all the steps involved to get a data...Now I'm also unclear about an SQLite file, like how do we load the data into the core data , once we have created our entities etc..

Thanks

The best place to look is the Core Data Programming Guide. Is there a specific question you have that isn't answered there?