How can I tell if Core Data is empty?
How can I tell if Core Data is empty?
To check if the Core Database is empty you have to make a NSFetchRequest on the entity you want to check, and check if the results of the request are empty.
When should you save context in Core Data?
Best Core Data save strategy (when to save data to disk)
- save context at the end of every change.
- save context only on app’s exit (like in Apple’s samples)
- save context on app’s exit, going to background or becoming not active (incoming phone call for example)
Should I use Core Data?
A Core Data managed object can have all its data saved to database and is only referenced as an ID in memory. Thus Core Data can save lots of memory especially when you have lots of model data. Once you use Core Data you don’t even need to worry about model data memory problems anymore.
What is the best way to improve Core Data performance?
Three Tips To Improve Core Data Performance
- Be Careful What You Ask For. Core Data is a highly optimized persistence framework.
- Don’t Block the Main Thread. If the main thread of your application is blocked, even for a brief moment, the user experiences this as your application being unresponsive.
- Binary Large Objects.
Why is Coredata bad?
It’s too slow for a large number of records. It’s fast enough for a very small number of records, but at that level it provides no advantage over using property lists and just loading everything into memory.
How is related data loaded in EF Core?
Explicit loading means that the related data is explicitly loaded from the database at a later time. Lazy loading means that the related data is transparently loaded from the database when the navigation property is accessed. You can view the samples under this section on GitHub.
What does it mean to load related data?
There are three common O/RM patterns used to load related data. Eager loading means that the related data is loaded from the database as part of the initial query. Explicit loading means that the related data is explicitly loaded from the database at a later time.
Where to do the initial load in architecture?
The initial load can be done in Classic Architecture and in Microservices Architecture.
When to use explicit loading in ASP.NET Core?
Code must be written to retrieve the related data when it’s needed. Explicit loading with separate queries results in multiple queries sent to the database. With explicit loading, the code specifies the navigation properties to be loaded. Use the Load method to do explicit loading.
