public Person[] GetAllPerson()
        {
            var mapper = new PersonMapper();

            using (var con = new SqlConnection(ConnstringDbPoc))
            {
                con.Open();
                var command = new SqlCommand
                {
                    CommandText = @"select * from Person",
                    Connection  = con
                };
                return(mapper.ReadMultiple(command));
            }
        }
        public void WarmUp()
        {
            var mapper = new PersonMapper();

            using (var con = new SqlConnection(ConnstringDbPoc))
            {
                con.Open();
                var command = new SqlCommand
                {
                    CommandText = @"select TOP 1 * from Person",
                    Connection  = con
                };

                mapper.ReadMultiple(command);
            }
        }