SQL (JDBC and JAVA)

Question

Hi
I have have problem in generating a results from my SQL command. Apparently the query run successfully but it fails to oick up the data in the table for display. Please find the code below:-
public class QueryTableModel extends AbstractTableModel {
ScrollingPanelVesDue screenVesDuePanel;
JTextArea output;
String url;
Connection connection;
Vector totalrows;
String[] colheads =
{ " Vessel Ref "," Agent ", " Name of Vessel ", "Arrival Date",
" Rem on Est Date of Arrival" };
public QueryTableModel( Connection dbc, ScrollingPanelVesDue s,
JTextArea o ) {
connection = dbc;
screenVesDuePanel = s;
output = o;
totalrows = new Vector();
//int i
public String getColumnName ( ) {
return colheads [ 5 ]; //i
//set the column number
public int getColumnCount() {
return 5;
//set the row number
public int getRowCount() {
return totalrows.size();
public Object getValueAt ( int row, int col ) {
return ( ( String[] ) totalrows.elementAt( row ) ) [ col ];
//sets the table cells non editable
public boolean isCellEditable ( int row, int col ) {
return false;
public void fire () {
fireTableChanged (null);
//executes query
public void query() {
try {
Statement statement = connection.createStatement( ResultSet.TYPE_SCROLL_SENSITIVE,
ResultSet.CONCUR_READ_ONLY);
String query = "SELECT Vessel_Ref, Type, Agent, EDA, EstRemarks FROM VesselGeneral " +
"WHERE EDA=" + screenVesDuePanel.F_Date.getText() +
"AND " + screenVesDuePanel.P_Date.getText();
output.append( "\nsending query:\n" +
connection.nativeSQL( query ) + "\n" );
ResultSet rs = statement.executeQuery( query );
totalrows = new Vector();
while ( rs.next () ) {
String[] record = new String[ 5 ];
for ( int i = 0; i < 5; i++ ) {
record[ i ] = rs.getString( i + 2 );
totalrows.addElement( record );
output.append( "\nQuery successful\n" );
statement.close();
catch ( SQLException sqlex ) {
output.append( sqlex.toString() );
I need urgent help
harry

Answer 1

hi dave
Please find all of code as stated as i am seriously finding it tough to solve the problem. Please note that in all i have 21 fields in the table and out of these i am selecting fields 2, 3,4 ,5 and 21 in the criteria of earliest and present dates entered by the user.
CODE
public class QueryVesDue extends JFrame implements ActionListener {
private ScrollingPanelVesDue screenVesDuePanel;
private ScrollingPanelVesGen screenVesGenPanel;
private JTextArea output;
private String url;
private Connection connection;
private JScrollPane jspane;
private Container c;
private QueryTableModel qtbl;
private JTable jtbl;
private boolean firsttime = true;
public QueryVesDue( Connection dbc, ScrollingPanelVesDue s, JTextArea o ) {
super ( "VESSELS DUE IN PORT" );
connection = dbc;
screenVesDuePanel = s;
output = o;
public void actionPerformed ( ActionEvent e ) {
if ( ! screenVesDuePanel.F_Date.getText().equals( "" ) &&
! screenVesDuePanel.P_Date.getText().equals( "" ) ) {
// set up the table GUI
if ( firsttime ) {
c = getContentPane();
c.setLayout( new FlowLayout () );
qtbl = new QueryTableModel ( connection, screenVesDuePanel, output );
qtbl.query();
jtbl = new JTable ( qtbl );
TableColumn tcol = jtbl.getColumnModel().getColumn( 0 );
tcol.setPreferredWidth( 50 );
jspane = new JScrollPane ( jtbl );
c.add( jspane );
setSize(600, 500);
firsttime = false;
else {
qtbl.query();
qtbl.fire();
TableColumn tcol = jtbl.getColumnModel().getColumn( 0 );
tcol.setPreferredWidth ( 150 );
show();
else
output.append( "\n Find data before generating query \n");
public class ScrollingPanelVesDue extends JPanel {
JTextField F_Date, P_Date; // package access
JLabel lF_Date, lP_Date;
public ScrollingPanelVesDue() {
// Label panel
JPanel labelPanel = new JPanel();
labelPanel.setLayout(
new GridLayout( 2, 1, 2, 2 ) ); //labels
lF_Date= new JLabel ( " Enter Earliest Date: " );
labelPanel.add( lF_Date);
lP_Date = new JLabel ( " Enter Due Date: " );
labelPanel.add( lP_Date );
// TextField panel
JPanel screenVesDuePanel = new JPanel();
screenVesDuePanel.setLayout(
new GridLayout( 2, 1 ) );
F_Date = new JTextField( 11 );
F_Date.setText( "dd/mm/yyyy" );
screenVesDuePanel.add( F_Date ).setBackground( Color.orange );
P_Date = new JTextField( 11 );
P_Date.setText( "dd/mm/yyyy" );
screenVesDuePanel.add( P_Date ).setBackground( Color.orange );
//screenVesDuePanel.add( )
//Accessibility section - relate labels and text fields
// for use by assistive technologies
lF_Date.setLabelFor( F_Date );
lP_Date.setLabelFor( P_Date );
setLayout( new GridLayout( 1, 2 ) );
add( labelPanel );
add( screenVesDuePanel );
public class QueryVesDue extends JFrame implements ActionListener {
private ScrollingPanelVesDue screenVesDuePanel;
private ScrollingPanelVesGen screenVesGenPanel;
private JTextArea output;
private String url;
private Connection connection;
private JScrollPane jspane;
private Container c;
private QueryTableModel qtbl;
private JTable jtbl;
private boolean firsttime = true;
public QueryVesDue( Connection dbc, ScrollingPanelVesDue s, JTextArea o ) {
super ( "VESSELS DUE IN PORT" );
connection = dbc;
screenVesDuePanel = s;
output = o;
public void actionPerformed ( ActionEvent e ) {
if ( ! screenVesDuePanel.F_Date.getText().equals( "" ) &&
! screenVesDuePanel.P_Date.getText().equals( "" ) ) {
// set up the table GUI
if ( firsttime ) {
c = getContentPane();
c.setLayout( new FlowLayout () );
qtbl = new QueryTableModel ( connection, screenVesDuePanel, output );
qtbl.query();
jtbl = new JTable ( qtbl );
TableColumn tcol = jtbl.getColumnModel().getColumn( 0 );
tcol.setPreferredWidth( 50 );
jspane = new JScrollPane ( jtbl );
c.add( jspane );
setSize(600, 500);
firsttime = false;
else {
qtbl.query();
qtbl.fire();
TableColumn tcol = jtbl.getColumnModel().getColumn( 0 );
tcol.setPreferredWidth ( 150 );
show();
else
output.append( "\n Find data before generating query \n");
public class QueryTableModel extends AbstractTableModel {
ScrollingPanelVesDue screenVesDuePanel;
JTextArea output;
String url;
Connection connection;
Vector totalrows;
String[] colheads =
{ " Vessel Ref "," Agent ", " Name of Vessel ", "Arrival Date",
" Rem on Est Date of Arrival" };
public QueryTableModel( Connection dbc, ScrollingPanelVesDue s,
JTextArea o ) {
connection = dbc;
screenVesDuePanel = s;
output = o;
totalrows = new Vector();
public String getColumnName ( int i ) {
return colheads [ i ];
//set the column number
public int getColumnCount() {
return 5;
//set the row number
public int getRowCount() {
return totalrows.size();
public Object getValueAt ( int row, int col ) {
return ( ( String[] ) totalrows.elementAt( row ) ) [ col ];
//sets the table cells non editable
public boolean isCellEditable ( int row, int col ) {
return false;
public void fire () {
fireTableChanged (null);
//executes query
public void query() {
try {
Statement statement = connection.createStatement( ResultSet.TYPE_SCROLL_SENSITIVE,
ResultSet.CONCUR_READ_ONLY);
String query = "SELECT Vessel_Ref, Type, Agent, EDA, EstRemarks FROM VesselGeneral " +
"WHERE EDA BETWEEN " + screenVesDuePanel.F_Date.getText() +
"AND AND EDA " + screenVesDuePanel.P_Date.getText() + "";
output.append( "\nsending query:\n" +
connection.nativeSQL( query ) + "\n" );
ResultSet rs = statement.executeQuery( query );
totalrows = new Vector();
while ( rs.next () ) {
String[] record = new String[ 20 ];
for ( int i = 0; i < 20; i++ ) {
record[i] = rs.getString( i + 2 );
totalrows.addElement( record );
output.append( "\nQuery successful\n" );
statement.close();
catch ( SQLException sqlex ) {
output.append( sqlex.toString() );
PLEASE HELP
HARRY