How to put row into one JTable using the data inside of the two database

Question

guys? help me with my problem. I want to have a one jtable that populates data using two table from database. i have two methods inside my class Apple..

Class Apple;

public void table(){

    try{

        String id = num.getText();

        rs = stat.executeQuery("SELECT * FROM payments;");

        Vector<String> header = new Vector<String>();

                    header.add("PAYMENT"); 
        header.add("AMOUNT");
        header.add("MODIFIER");
        header.add("DATE MODIFIED");

        Vector<Vector<Object>> data = new  Vector<Vector<Object>>();

        while(rs.next()) {

            Vector<Object> row = new Vector<Object>();

    row.add(rs.getString("description"));
    row.add(rs.getString("amount")); 
    row.add(rs.getString("remarks")); 
    row.add(rs.getString("date"));

            data.add(row);

        } // loop

        dtm.setDataVector(data , header);
        JScrollPane scrollPane = new JScrollPane(table);

        scrollPane.setBounds(0,0,490,250);
        panel.add(scrollPane);
        validate();

    }catch(Exception e){
        System.out.println("Error in table: "+e);
    }//try and catch

}//tble

that's the first method inside class Apple, and rs = stat.executeQuery("SELECT * FROM payments;"); is the first database table i want to retrieve the data and insert inside my jtable.. after it insert inside my jtable i have another method that will retrieve data from another database table..

public void table(){

    try{

        String id = num.getText();

        rs = stat.executeQuery("SELECT * FROM record where idNum ='"+id+"';");

        while(rs.next()){

            Vector<Object> row = new Vector<Object>();

            row.add(rs.getString("description"));
            row.add(rs.getString("amount")); 
            row.add(rs.getString("remarks")); 
            row.add(rs.getString("date"));

            data.add(row);

        } // while

        dtm.setDataVector(data , header);
        JScrollPane scrollPane = new JScrollPane(table);

        scrollPane.setBounds(0,0,490,250);
        panel.add(scrollPane);
        validate();

    }catch(Exception e){
        System.out.println("Error in table: "+e);
    }//try and catch

}//tble

this is the second methd inside the class apple.. i want its data to be added into my jtable and not deleting the previous data inserted inside the jtable..sorry for my poor english grammar..hope you understand what i mean..

Answer 1

Do join operation in single query between payments and record table and retrieve result on JTable.