public TableModel Update() {
        String columnNames[] = { "Liste Filiere"};
        DefaultTableModel defModel = new DefaultTableModel();
        defModel.setColumnIdentifiers(columnNames);
        SequenceController seq_classe= new SequenceController();
        seq_classe.CreateSequence("SEQ_FILIERE");
    
        try {
            DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
            Connection con = DriverManager.getConnection(DBURL, DBUSER, DBPASS);
            if (con == null)
                System.out.println("con classe ko ");
            else
                System.out.println("con classe ok ");
            Statement statement = con.createStatement();
            if (statement == null)
                System.out.println("statement classe ko ");
            else
                System.out.println("statement classe ok ");
            
            //System.out.println("test1 : " + SaisieNom.getText());
            
            ResultSet rs = statement.executeQuery("select * from \"FILIERE\" order by LIBFILIERE" );
            //ResultSet rs = statement.executeQuery("select * from \"classe\" where nom='"+SaisieNom.getText()+"'" );
            //ResultSet rs = statement.executeQuery("SELECT table_name FROM user_tables" );
            //String codeCLasse = "";
            String LibFiliere = "";
            //String CodeFiliere = "";
            while (rs.next()) {
                //codeCLasse= "N.A";
                LibFiliere=rs.getString("LIBFILIERE");
                
                defModel.addRow(new Object [] {LibFiliere} );
                
                
            }
            rs.close();
            statement.close();
            con.close();
        } catch (SQLException ex) {
            Logger.getLogger(Login.class.getName()).log(Level.SEVERE, null, ex);
        }
        return defModel;
        
    }