HELP! I'm trying to read an access DB.

Question

Hi everyone,
I hope you can help me solve this problem:
I created the data source (SystemDSN) for my access DB called EMail, and now with this program I'm trying to read the information that I wrote in my DB. I don't know why I have the error NO DATA FOUND during the connection.
I have windows ME, JBuilder6, jdk1.3.1_02, MDAC2.7 RTM.
This is my program:
package jdbcconnect;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.border.*;
import java.util.*;
import java.net.*;
import java.sql.*;
import java.io.*;
import java.lang.*;
* <p>Title: </p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2002</p>
* <p>Company: </p>
* @author unascribed
* @version 1.0
public class JdbcFrame extends JFrame {
JTable jRows = null;
Vector columnNames = null;
Vector rows = null;
public JdbcFrame() {
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
columnNames = new Vector();
columnNames.addElement("Email Address");
columnNames.addElement("First Name");
columnNames.addElement("Last Name");
// rows is a vector of vectors, it will maintain a vector
// for each row in the table, and each vector maintained by
// row is a vector of the columns.
rows = new Vector();
getData(rows);
setSize(400,400);
jRows = new JTable(rows, columnNames);
getContentPane().setLayout(new BorderLayout());
getContentPane().add(jRows, BorderLayout.CENTER);
getContentPane().add(jRows.getTableHeader(), BorderLayout.NORTH);
setTitle("JdbcFrame");
//pack();
setVisible(true);
private void getData(Vector v)
// here is the bulk of your database connectivity
// code.
Connection connection = null;
try
// instantiate the JdbcOdbc Driver
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
System.out.println("STEP 1");
// get a connection from the driver to the Email System DSN
connection = DriverManager.getConnection("jdbc:odbc:EMail"); // PROBLEM!!!!!!!!!!!!
System.out.println("STEP 2");
// prepare SQL command
String sql_command = new String("SELECT * FROM EMail");
System.out.println("STEP 3");
// prepare to submit SQL command by Statement object
Statement statement = connection.createStatement();
// retrieve a ResultSet (a logical db table) containing
// results of the query
ResultSet rs = statement.executeQuery(sql_command);
// next() moves to the first row and to subsequent rows
// in the table
while(rs.next())
// add the results to the associated vector
// of the JTable
Vector singleRow = new Vector();
singleRow.addElement(rs.getString("email_address"));
singleRow.addElement(rs.getString("f_name"));
singleRow.addElement(rs.getString("l_name"));
v.addElement(singleRow);
rs.close();
statement.close();
connection.close();
catch(SQLException e)
System.out.println(e);
catch(ClassNotFoundException g)
System.out.println(g);
public static void main(String[] args)
JdbcFrame jdbcFrame1 = new JdbcFrame();
}

Answer 1

Hi there,
Actually I tried to run the same program and test it, I found that the program is working perfectly fine!!!
I would like to ask you to check the following few things.
1. Please check that the DSN created i.e EMail is pointing to the right Database or not.
2. Is there any data in the Table or not???
3. The select statement you fired is "SELECT * FROM EMail". Please check the Table Name as its the same as the DSN. Might be a mistake bychance.
Otherwise your program is Perfect.
Do give me a shout if any other queries...
Thanks
II