Use @FetchRequest to get objects from your Core Data and store as a FetchedResults variable.

For example, get all objects of the entity Category and sort them by order, and store as the variable categories:

@FetchRequest(
    entity: Category.entity(),
    sortDescriptors: [NSSortDescriptor(key: "order", ascending: true)]
)
var categories: FetchedResults<Category>

`sortDescriptors`

Multiple sort Descriptors

Sort descriptors will determine the order of the fetched results. You can have multiple sort descriptors, and they’ll be applied in the order you list them.

@FetchRequest(
    entity: Category.entity(),
    sortDescriptors: [NSSortDescriptor(key: "name", ascending: true), NSSortDescriptor(key: "order", ascending: true)]
)
var categories: FetchedResults<Category>

Sorting Strings

To compare strings as case-insensitive, you need to specify the selector:

@FetchRequest(
    entity: Category.entity(),
    sortDescriptors: [NSSortDescriptor(key: "name", ascending: true, selector: #selector(NSString.localizedStandardCompare))]
)
var categories: FetchedResults<Category>

Filtering Results

You can filter which results you want by specifying the predicate:

@FetchRequest(
    entity: Food.entity(),
    sortDescriptors: [NSSortDescriptor(key: "name", ascending: true, selector: #selector(NSString.localizedStandardCompare))]
    predicate: NSPredicate(format: "onGroceryList == true && checkedOff == true")
)
var checkedOffFoods: FetchedResults<Food>