SQL Query not working in action performed event of combobox in swing

hi all..
i have to retreive from the database based on the item selected in the comboBox.......
when the program runs for the first time the data of defaultselected item is being displayed...
but when another item is selected the data is not retrieved from the database....
i am able to print the selected item but unable to query the database for the selected item
private void resultsItemStateChanged(java.awt.event.ItemEvent evt) {
// TODO add your handling code here:
      ResultSet rs2=null;
       PreparedStatement srch2 = null;
        Connection conn1= null;
        Statement us = null;
        try{
            Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
            conn1 = DriverManager.getConnection("jdbc:odbc:aa");
           System.out.println("you have selected me : --- >" + results.getSelectedItem().toString());
             sql="SELECT * FROM " + name + " WHERE term = ?";
            srch2 = conn.prepareStatement(sql);
            srch2.setString(1,results.getSelectedItem().toString());
            rs2 = srch2.executeQuery();
           rs2.next();
            tarea2.setText("\n"+rs1.getString(3));
            tarea3.setText("\n "+rs1.getString(4));
            tarea4.setText("\n"+rs1.getString(5));
            tarea6.setText("\n"+rs1.getString(6));
            tarea5.setText("\n"+rs1.getString(7));
          rs2.close();
          conn1.close();
        } catch(Exception e){
            System.out.println(e);
    After printing for the first time it is showing like this ...
java.sql.SQLException: ResultSet is closed
at sun.jdbc.odbc.JdbcOdbcResultSet.checkOpen(JdbcOdbcResultSet.java:6646)
at sun.jdbc.odbc.JdbcOdbcResultSet.getString(JdbcOdbcResultSet.java:257)
at more_info.resultsActionPerformed(more_info.java:301)
at more_info.access$100(more_info.java:25)
at more_info$2.actionPerformed(more_info.java:121)
at javax.swing.JComboBox.fireActionEvent(JComboBox.java:1242)
at javax.swing.JComboBox.setSelectedItem(JComboBox.java:569)
at javax.swing.JComboBox.setSelectedIndex(JComboBox.java:605)
at javax.swing.plaf.basic.BasicComboPopup$Handler.mouseReleased(BasicComboPopup.java:814)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:273)
at java.awt.Component.processMouseEvent(Component.java:6038)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3260)
at javax.swing.plaf.basic.BasicComboPopup$1.processMouseEvent(BasicComboPopup.java:480)
at java.awt.Component.processEvent(Component.java:5803)
at java.awt.Container.processEvent(Container.java:2058)
at java.awt.Component.dispatchEventImpl(Component.java:4410)
at java.awt.Container.dispatchEventImpl(Container.java:2116)
at java.awt.Component.dispatchEvent(Component.java:4240)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
at java.awt.Container.dispatchEventImpl(Container.java:2102)
at java.awt.Window.dispatchEventImpl(Window.java:2429)
at java.awt.Component.dispatchEvent(Component.java:4240)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)

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     AND (C.CVBI_KEY = CT1.CVBI_KEY (+)
     and CT1.PERIOD = CUR_PERIOD)
     and (az.master_route_name=c.aloc||'-'||c.zloc OR az.reversed=c.aloc||'-'||c.zloc)
     END; -- INS_RATE_ROUTE_RECORDS_PROC

have read about certain things not working in 8i and I think this is one of them,Yes as I said scalar sub-queries were also not recognized within PL/SQL in 8i.
Re: PLS-00103: Encountered the symbol "SELECT" when expecting one of the fo
I was wondering if anyone had a work around.Write a function that returns the value. You may incur a performance penalty from a context switch to PL/SQL, but it may be balanced by the decode optimization you are attempting.

My first PL/SQL block not working with using Select query within begin

I am new to PL/SQL , just started with basics of BLOCKS .
I am having a query here in executing a block .
When i am doing a insert oprtation in Blocks Begin method everything is working fine , but when ever i tried to do select operation , some error is being thrown .
First of all This is my Table :
select from try :*
KEY      VALUE
Key     Value
Key1     Value1
Key2     Value2
Key3     Value3
======================
This is the code which is not working : Please see the code and tell me what is the problem .
DECLARE
v_KEY    VARCHAR2(20);
v_VALUE   VARCHAR2(20);
BEGIN
select key into v_KEY FROM try where v_value='Value' ;
dbms_output.put_line(v_KEY);
END;
When i run this code , it is saying Data Not Found on this line " select key into v_KEY FROM try where v_value='Value' ;"
wheer when i run tis individually it worked fine :
select KEY FROM try where VALUE='Value' ;"
please share your ideas .as why it isn't running ??
Edited by: user10503747 on Sep 20, 2010 3:16 AM

Hi,
user10503747 wrote:
I am new to PL/SQL , just started with basics of BLOCKS .
I am having a query here in executing a block .
When i am doing a insert oprtation in Blocks Begin method everything is working fine , but when ever i tried to do select operation , some error is being thrown .
First of all This is my Table :
select from try :*
KEY      VALUE
Key     Value
Key1     Value1
Key2     Value2
Key3     Value3
======================
This is the code which is not working : Please see the code and tell me what is the problem .
DECLARE
v_KEY    VARCHAR2(20);
v_VALUE   VARCHAR2(20);
BEGIN
select key into v_KEY FROM try where v_value='Value' ;
dbms_output.put_line(v_KEY);
END;
When i run this code , it is saying Data Not Found on this line " select key into v_KEY FROM try where v_value='Value' ;"
wheer when i run tis individually it worked fine :
select KEY FROM try where VALUE='Value' ;"
please share your ideas .as why it isn't running ??
Edited by: user10503747 on Sep 20, 2010 3:16 AMInstead of:
{code}
select key into v_KEY FROM try where v_value='Value' ;
{code}
perhaps you meant something like:
{code}
v_value := 'Value1';
select key into v_KEY FROM try where v_value=Value ; -- No quotes
{code}
Until you assign a vlue to a variable, like v_value, it is NULL, so your original statement was equivalent to
{code}
select KEY FROM try where NULL='Value' ;
{code}
In PL/SQL, a SELECT ... INTO statement must return exactly one row, or else you will get an error (either NO_DATA_FOUND or TOO_MANY_ROWS). This is different from SQL, where a query cn return any number of rows, including 0, without raising an error.

SQL Query not working in action performed event of combobox in swing

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