String url = "jdbc:odbc:CustomerInformation";
String userID = "jim";
String password = "keogh";
Statement DataRequest;
Connection Db;
int rowsUpdated;
try {
   Class.forName( "sun.jdbc.odbc.JdbcOdbcDriver");
   Db = DriverManager.getConnection(url,userID,password);
 }
catch (ClassNotFoundException error) {
      System.err.println("Unable to load the JDBC/ODBC bridge." + 
             error);
      System.exit(1);
}
catch (SQLException error) {
      System.err.println("Cannot connect to the database." + error);
      System.exit(2);
}
try {
      String query = "UPDATE Customers 
                      SET PAID='Y' WHERE BALANCE = '0';
      DataRequest = Db.createStatement();
      rowsUpdated = DataRequest.executeUpdate (query);
      DataRequest.close();
 }
catch ( SQLException error ){
     System.err.println("SQL error." + error);
     System.exit(3);
}
Db.close();