What are some examples of projections in EF Core?

What are some examples of projections in EF Core?

In EF Core, projections allow you to shape the data returned from a query. For example, you can select specific fields from an entity.

Can you show me a code example of a projection?

Sure! Here's a simple example: var projectedData = context.Users.Select(u => new { u.Name, u.Email }).ToList(); This selects only the Name and Email fields.

What if I want to include related data in the projection?

You can include related data using Include and then project it. For example: context.Orders.Include(o => o.Customer).Select(o => new { o.OrderId, CustomerName = o.Customer.Name }).ToList();

Are there any performance considerations I should be aware of?

Yes, projecting only the necessary fields can improve performance by reducing the amount of data transferred from the database.