Core data tutorial swift 5

Core Data is a powerful mobile database allowing developers to create high performance, data-driven iOS and macOS applications. This post presents examples of creating, updating, and deleting Core Data objects in Swift:

1. Defining A New Core Data Entity
   a.

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New Data Model Entity Using Xcode
b. Xcode NSManagedObject Sync

6. Create A New Core Data Object
   a. New NSManagedObject Example
   b. Use of unresolved identifier ‘Entity’
   c.
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7. Update A Core Data Object
8. Delete A Core Data Object

Note: Object manipulation in Core Data requires an . The examples in this post assume the variable is in scope and is a .

Defining A New Core Data Entity

Core Data is well integrated in Xcode, providing a visual interface for definition entities, properties, and relationships.

To open the Data Model Editor, select a file:

New Data Model Entity Using Xcode

By default, the editor contains no entities. Select in the lower left to create a new entity called with no properties:

Double clicking on the name allows a more descriptive name t