static void Main(string[] args)
        {
            var connectionString = @"Server=.;" +
                                   "Database=MiniORM;" +
                                   "Integrated Security=True;";
            var context = new SoftUniDbContext(connectionString);

            context.Employees.Add(new Employee
            {
                FirstName    = "Nikolay",
                LastName     = "Doychev",
                DepartmentId = context.Departments.First().Id,
                IsEmployed   = true,
            });

            var employee = context.Employees.Last();

            employee.FirstName = "Modified";

            context.SaveChages();
        }