Set the column length in an sql query

Hi,
Is there a way to set the column length in a query without using sqlplus commands like row size and format column.
I'd like to do it just from the sql query itself.
select 'this is a test' from dual; Can I define the width of this column in the select statement
Cheers.

Use RPAD,
SQL> WITH T
2       AS (SELECT 'this is test' str FROM DUAL
3           UNION ALL
4           SELECT 'this is a long test' FROM DUAL
5           UNION ALL
6           SELECT 'this is a long long long long test' FROM DUAL)
7 SELECT RPAD ( str, 20) str,LENGTH( RPAD ( str, 20)) len
8    FROM T;
STR                         LEN
this is test                 20
this is a long test          20
this is a long long          20
SQL> G.

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Hello Ravi,
Thank you very much for your suggestions.. but still have some more doubts:
What i want to do is :
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>
pkv wrote:
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        jpHorizontalAlignment.add(jrbCenter);
        jpHorizontalAlignment.add(jrbRight);
        jpColumn.setBorder(lineBorder);
        jpColumn.add(jlblColumn);
        jpColumn.add(jtfColumnSize);
        // add the panels to the frame
        add(jpText, BorderLayout.NORTH);
        add(jpHorizontalAlignment, BorderLayout.WEST);
        add(jpColumn, BorderLayout.EAST);
        jrbLeft.addActionListener(new ActionListener(){
            // Handle event
            public void actionPerformed(ActionEvent e) {
                jtfUserText.setHorizontalAlignment(SwingConstants.LEFT);
        jrbCenter.addActionListener(new ActionListener(){
            // Handle event
            public void actionPerformed(ActionEvent e) {
                jtfUserText.setHorizontalAlignment(SwingConstants.CENTER);
        jrbRight.addActionListener(new ActionListener(){
            // Handle event
            public void actionPerformed(ActionEvent e) {
                jtfUserText.setHorizontalAlignment(SwingConstants.RIGHT);
        // Register the listener for the coloum size
        jtfColumnSize.addActionListener(new ActionListener(){
            // Handle event
            public void actionPerformed(ActionEvent e) {
                System.out.println(Integer.parseInt(jtfColumnSize.getText()));
                jtfUserText.setColumns(Integer.parseInt(jtfColumnSize.getText()));
}Edited by: ChangBroot on Dec 16, 2008 6:13 PM

don't forget to revalidate the JPanel after changing the components it holds:
    jtfColumnSize.addActionListener(new ActionListener()
      // Handle event
      public void actionPerformed(ActionEvent e)
        System.out.println(Integer.parseInt(jtfColumnSize.getText()));
        jtfUserText.setColumns(Integer.parseInt(jtfColumnSize.getText()));
        jpText.revalidate();
    });This will tell the jpText JPanel's layout manager to relayout the components that this JPanel holds. It should resize your JTextField. Note that in order to call this from within the anonymous inner ActionListener jpText will need to be declared "final". Either that or declared as a class field.

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