Core Data

Core Data is an object graph and persistence framework provided by Apple for macOS, iOS, watchOS, and tvOS. It manages the model layer objects in an application, handling object lifecycle, relationships, and data storage, typically using SQLite as a backend. It simplifies data management by providing features like change tracking, undo/redo support, and automatic validation.

Also known as: CoreData, Apple Core Data, iOS Core Data, macOS Core Data, CD

Why learn Core Data?

Developers should learn Core Data when building Apple platform apps that require persistent data storage, such as to-do lists, note-taking apps, or any application needing local data caching. It is particularly useful for handling complex object relationships and ensuring data integrity across app sessions, making it a standard choice for iOS/macOS development where seamless data persistence is needed.

Learning Resources

• docs: Apple Developer Documentation: Core Data
• tutorial: Ray Wenderlich Tutorial: Core Data with SwiftUI
• tutorial: Hacking with Swift: Core Data Introduction
• course: Stanford CS193p: Developing Apps for iOS (Core Data Section)
• video: YouTube: Core Data Tutorial for Beginners