Advanced Swift 2 Application Development (Video 13)

The video tutorial covers how to populate a database using Core Data in an iOS application. It begins with an overview of SQL Lite files and accessing entities using NS entity description. The tutorial then explains setting up a shared instance of Core Data Manager to avoid conflicts. A method called 'create dreams' is introduced to handle data insertion and error management. The video also demonstrates initial setup in the App Delegate and adjustments in the Dream View Controller for saving data. Finally, it previews the next video on data retrieval using NSFetchResultsController.

How do you ensure that the same instance of the core data manager is returned each time?

What is the significance of the error handling in the 'create dreams' method?

What changes are made to the app delegate to utilize core data for creating initial dreams?