public static DataTable Get_Inf_Merchant()
        {
            DataTable table = new DataTable();

            try
            {
                string maxUpdatetime = null;
                if (string.IsNullOrEmpty(updatedatatimeMer) == false)
                {
                    maxUpdatetime     = updatedatatimeMer;
                    updatedatatimeMer = null;
                }
                else
                {
                    string max_time = null;
                    max_time = dataAccess.Get_Max_UpdateTime_Mer();
                    if (max_time != null)
                    {
                        maxUpdatetime = max_time.ToString();
                    }
                }
                if (string.IsNullOrEmpty(maxUpdatetime) == false)
                {
                    long MaxUpdateTime_T = long.Parse(maxUpdatetime);
                    table = dataAccess.Get_inf_mer(maxUpdatetime);
                    //table = dataAccess.Get_inf_mer_train(maxUpdatetime);
                }
                return(table);
            }
            catch (Exception ex)
            {
                classUpdateTerminalLogWriter.WriteLog("Error Get_Inf_Merchant(), " + ex.Message);
                table.Clear();
                return(table);
            }
        }