https://zeddios.tistory.com/987

https://modelinspring.tistory.com/m/91

Untitled

https://icksw.tistory.com/224

code for change data and store

        let fetchRequest2: NSFetchRequest<StickerNumbers> = StickerNumbers.fetchRequest()
        fetchRequest2.predicate = NSPredicate(format: "id == %d", 70)

        do {
            let results = try container.viewContext.fetch(fetchRequest2)
            if let entity = results.first {
                // Modify the properties of the entity as needed
                entity.number  = 5

                // Save the changes to the managed object context
                try container.viewContext.save()
            } else {
                print("Entity with id 3 not found.")
            }
        } catch {
            print("Error fetching entity: \\(error)")
        }