string Sql = "SELECT Vio_carlogo FROM Orderbill INNER JOIN Violator ON Orderbill.Vio_allowno=Violator.Vio_allowno INNER JOIN Police ON Orderbill.Pol_id=Police.Pol_id Where Pol_station='นครพนม' AND Vio_cartype='รถยนต์นั่งส่วนบุคคล' Order By Vio_carlogo ASC";
SqlCommand cmd = new SqlCommand(Sql, Conn);
SqlDataAdapter adapter = new SqlDataAdapter(cmd);
DataSet data = new DataSet();
adapter.Fill(data, "Vio");