March 2015
Beginner
268 pages
4h 49m
English
Content preview from Learn Swift on the Mac: For OS X and iOS
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Chapter 20
Working with Core Data
Core Data is a framework that allows you to maintain an ordered data store for either in-memory or permanent storage. It is akin to a database, but it’s not a database in a traditional sense, it’s not a relational database management system (RDBMS). Core Data can use a traditional database as a lower layer for external storage; SQLite is one of the storage mechanisms it supports.
Core Data is an object graph and persistence store framework that provides a high-level data model via entities and the relationships among those entities. It also provides fetch requests to retrieve data that meets certain criteria. Developers use Xcode’s entity editor to define the object models and relationships.
Core Data is ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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