String sql = "SELECT poMast.ORDNO  from AMFLIBL.POMAST AS poMast ";
Class.forName("com.ddtek.jdbc.db2.DB2Driver");
String url = "jdbc:datadirect:db2://hostname:port;DatabaseName=dbName;";
Connection con = DriverManager.getConnection(url, "username","password");
PreparedStatement preparedStatement = con.prepareStatement(sql);
ResultSet rs = preparedStatement.executeQuery();
System.out.println("ResultSet : n");
System.out.println(" VNDNO");
while (rs.next())
{
   System.out.println(rs.getString("ORDNO"));
}