Core Data relationships, predicates, and delete rules in Xcode | Continued Learning #16

In this video, we take a deep dive into Core Data and learn how to create and manage multiple Core Data entities that have relationships between them. We will develop a mock application that contains three types of entities: Businesses, Departments, and Employees. These entities will have many relationships between them, including one-to-one and one-to-many relationships!

In addition to implement the CRUD (Create, Read, Update, Delete) functions, we will learn how to sort and filter (predicate) Core Data fetch requests. We will also learn how to properly delete Core Data relationships by using Deny, Cascade, and Nullify delete rules.

**NOTE: Unlike most videos on my channel, this video is NOT beginner level. You should have an understanding of Swift, SwiftUI, and Core Data basics.**

🤙 WELCOME BACK 🤙

[nicoballmann]

This is by far, the best SwiftUi Course, and believe me - i tried many. Thank you so much!

[dre]

My dude was teaching this topic at flipping MIDNIGHT!! The GOAT!!! 🐐
Great lesson brother!

[peitzuhuang]

Nick: I'm sorry guys, I know I'm adding a bunch of things.
Me: No, it's not complicated at all, you're so good at explaining!

Thank you Nick!!

[tmartin]

I am a beginner, and I was stuck on a problem with Core Data that was preventing me from progressing in my project. This issue had been bothering me for a long time. Thank you, teacher, for your video, which has helped me make further progress in my project. I am extremely grateful.

[lucagfc]

The quality of these tutorial is incredible. You have a gift! Small number of people can explain something complicated like CoreData with this clarity. Great work 🎉

[focusAJfocus]

I must say that this is the best SwiftUI course for beginners. I’ve tried some on Udemy and quite a few on YouTube, but your course beats them all. Congratulations! 🥳

[Srijonlucky]

I was planning to use Realm for offline data in my app. But changed the decision watching this video. CoreData is really powerful. Thanks to you for presenting it with easy explanation.

[drewalthage]

Another awesome video. As others have said in the comments below, I too spent quite a bit of time watching videos and reading articles on relationships, predicates, and such in CoreData but found that there were either a lot of gaps or assumed knowledge. This is an excellent intro to advanced CoreData. Very grateful. Thank you!

[appeture]

Thank you! These are the best SwiftUI videos. Even with poor English, everything is crystal clear!

[pasha]

Perhaps the best Core Data tutorial on YouTube. Great job, Nick 🥇

[paulraggett]

This is a very interesting explanation of a complex subject, and an excellent example of the power of mvvm in action. It is very easy to follow because it builds on lessons from your previous videos. You put a lot of time and effort into this video the result is excellent. Thank you

[faikcoskuncakr]

We are now CoreData experts. Thank you so much!

[lukegannon]

This is the exact video I needed, very clear and great explanation about how to use core data and managing the relationship between multiple entities. Also I would say one of the only videos I have found clearly describing a Many To Many relationship. Thank you so much!

[MrKamalAit]

Hello Nick, just wanted to show my appreciation of your thorough explanation, thank you. And please keep up the amazing work!

[光莒]

Wow... This is the best Core Data Course I've ever seen.
I want to understand this topic for a long time~~Finally~~~
You really do a excellent job~!
Thanks you for welling to share this complicated knowledge for everybody!!

[TimMitra]

I’ve been stuck trying to rewrite an old Objective-C based Core Data app. This is exactly the explanation I needed to move forward!

[themaryamk]

This is by far, the best and most understandable video about CoreData I've ever watched! A big Thank you !

[mahdihhz]

man I was stuck on exactly these problems, I had exactly 3 entities that relate to each other and I was banging my head against the wall. life saver. amazing tutorial.

[DavidJohnson-bxhu]

This is the only effective explanation of Core Data relationships i have found. Excellent work!

[吴林旭]

This is the best SwiftUI course i've ever seen, Thank you much!