What is IDbSet?

What is IDbSet?

An IDbSet represents the collection of all entities in the context, or that can be queried from the database, of a given type. DbSet is a concrete implementation of IDbSet.

Should I use async for EF core?

Generally speaking, if there are asynchronous APIs, then you should use them for new code. Asynchronous code frees up the calling thread. If your application is a GUI application, this can free up the UI thread; if your application is a server application, this can free up threads to handle other requests.

What does FindAsync return?

FindAsync(Object[]) If an entity with the given primary key values exists in the context, then it is returned immediately without making a request to the store. Otherwise, a request is made to the store for an entity with the given primary key values and this entity, if found, is attached to the context and returned.

What is FirstOrDefaultAsync?

FirstOrDefaultAsync(IQueryable) Asynchronously returns the first element of a sequence, or a default value if the sequence contains no elements.

What is DbContext and DbSet?

Intuitively, a DbContext corresponds to your database (or a collection of tables and views in your database) whereas a DbSet corresponds to a table or view in your database. So it makes perfect sense that you will get a combination of both!

Why we use async and await in .NET Core?

When we don’t want to return a result from our async method, we should always return a Task. To validate our asynchronous operations, we have to use the await keyword while calling that operation. When we convert our synchronous code to asynchronous, we have to use the async and await keywords all the way up the chain.

Why we use async and await in Web API?

The async/await feature solves three performance or scalability problems: They can make your application handle more users. If you have requests that access an external resource such as a database or a web API then async frees up the thread while it is waiting.

What is difference between DbContext and ObjectContext?

DbContext is nothing but a ObjectContext wrapper, we can say it is a lightweight alternative to the ObjectContext….ObjectContext VS DBContext.