using System;
using System.ComponentModel.DataAnnotations.Schema;
using System.Data.Entity;
using System.Data.Entity.Migrations;
using System.Linq;

namespace ConsoleApplication1
{
    public class Db : DbContext { public DbSet<Person> Persons { get; set; } }

    public class Person
    {
        public int Id { get; set; }
        public string Name { get; set; }
        public double Total { get; set; }
        [NotMapped] public long Runtime { get { return DateTime.Now.Ticks; } }
    }

    internal static class Program
    {
        private static void Main()
        {
            try
            {
                using (var db = new Db())
                {
                    db
                        .Persons
                        .ToList()
                        .ForEach(p => Console.WriteLine("{0} {1} {2} {3}", p.Id, p.Name, p.Total, p.Runtime));
                }
            }
            catch (Exception ex)
            {
                Console.Error.WriteLine(ex);
            }

            Console.ReadLine();
        }
    }

    internal sealed class Configuration : DbMigrationsConfiguration<Db>
    {
        public Configuration()
        {
            AutomaticMigrationsEnabled = false;
        }

        protected override void Seed(Db context)
        {
            for (var i = 0; i < 10; i++)
            {
                context.Persons.AddOrUpdate(new Person
                {
                    Id = i,
                    Name = "Name" + i,
                    Total = (i / 10.0)
                });
            }
            context.SaveChanges();
        }
    }
}