static void Ex1()
        {
            using (var context = new NorthwindEntities())
            {
                //Afisati toate informatiile despre angajatii din Londra.
                //select * from Customers where City='London'
                var results = from c in context.Customers
                              where c.City.Equals("London")
                              orderby c.CustomerID
                              select new
                              {
                                  c.CustomerID,
                                  c.CompanyName,
                                  c.City
                              };
                foreach (var item in results)
                {
                    Console.WriteLine("{0} \t {1} \t ",
                    item.CustomerID,
                    item.CompanyName
                    );
                }
            }
        }