Core  Data takes advantage of the Objective-C language and its runtime, and  neatly integrates with the Core Foundation framework. The result is an  easy to use framework for managing an object graph that is elegant to  use and incredibly efficient in terms of memory usage. Every  component of the Core Data framework has a specific purpose and  function. If you try to use Core Data in a way it wasn't designed for,  you will inevitably end up struggling with the framework. Developers  new to the Core Data framework often confuse it with and expect it to  work as a database. If there's one thing I hope you'll remember from  this series, it is that Core Data isn't a database and you shouldn't  expect it to act like one. It's the Model in  the Model-View-Controller pattern that permeates the iOS SDK. Core  Data isn't the database of your application nor is it an API for  persisting data to a database. Core Data is a framework that manages an  object graph. It...
 
 
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