static void Main(string[] args) { try { SqlHelper sqlHelper = new SqlHelper(); //string planetName = sqlHelper.GetPlanetNameById_DynamicQuery(1); string planetName= sqlHelper.GetPlanetNameById_SqlParameter(1); //string planetName = sqlHelper.GetPlanetNameById_StoredProcedure(1); Console.WriteLine(planetName); } catch (Exception ex) { Console.WriteLine(ex.ToString()); } Console.ReadLine(); }