EF Core custom results from stored procedure - asp.net

Question

I'm using EF Core which I believe is also known as EF 7? Anyways, I have a stored procedure that returns custom results that will not identify with any specific table. How am I supposed to access those results and how should I call the sql command?
Normally we have to use .FromSql but that is only available on entities, eg. _context.User.FromSql(). I don't have an entity for it.
So I tried building a dbset/entity for the results, but again, there is no associated table, and there is also no "Key". How am I supposed to parse the data then of the custom results?

Answer 1

You can create a fake entity for the result of your stored procedure. You can set any property as the Key, even if in the results of the stored procedure the key values are not unique.
For example if you have a table like the following :
CREATE TABLE [dbo].[banana_hoard]
(
[id] INT NOT NULL PRIMARY KEY IDENTITY (1,1),
[owner] NVARCHAR(64) NOT NULL,
[bananas] BIGINT NOT NULL
)
You can have a query that does not return the row id like this :
public class Program
{
public static void Main(string[] args)
{
using (var db = new MonkeyDbContext())
{
var sp_results = db.search.FromSql(#"execute <YOUR_STORED_PROC>");
str_result = String.Join("\n", sp_results.Select(a => JsonConvert.SerializeObject(a) ));
Console.WriteLine("stored proc result :\n" + str_result);
}
}
}
public class MonkeyDbContext : DbContext
{
public DbSet<StoredProcRow> search { get; set; }
protected override void OnConfiguring (DbContextOptionsBuilder builder)
{
builder.UseSqlServer(#"Server=(localdb)\monkey_db;Database=monkey_db;Trusted_Connection=True;");
}
}
public class StoredProcRow
{
[Key]
public string Owner { get; set; }
public long Bananas { get; set; }
}