Learning Core Data for iOS with Swift: A Hands-On Guide to Building Core Data Applications, Second Edition

Preface

Every day, millions of Apple devices run applications, or apps, that rely on Core Data. This has led to a mature, stable, and incredibly fast platform for apps to access their data. Core Data itself is not a database. In fact, Core Data is a framework that, among other things, automates how you interact with a database. Instead of writing SQL code, you work with managed objects. All the associated SQL you would otherwise have to write yourself is generated automatically. This leaves you with all the benefits of a relational database without the headache of writing, testing, and optimizing SQL queries within your code. The SQL code generated automatically “under the hood” is the product of years of refinement and optimization by Apple’s ...