Error using Page Items in PL/SQL Triggers

Hello all,
I am trying to use a page item value in my PL/SQl trigger statement.Following is my trigger
create or replace TRIGGER "cts_apps_temp_insert"
BEFORE INSERT ON CTS_APPS_TEMP
FOR EACH ROW
DECLARE
vComputer_ID NUMBER;
vTemp varchar(200);
BEGIN
select computer_id into vComputer_ID from cts_hardware_info where computer_name = v('P105_DEVICE_NAME');
INSERT INTO CTS_SERVER_APP_CUSTOMER(SERVER_ID,DEPT_APP_REL_ID,TECHNICAL_MANAGER,FUNCTIONAL,APPLICATION_COORDINATOR,MODIFYUSERID,DATEOFMODIFICATION)
VALUES (vComputer_ID,:NEW.DEP_APP_REL_ID,:NEW.TECHNICAL_MANAGER,:NEW.FUCNTIONAL_MANAGER,:NEW.APPLICATION_COORDINATOR,v('APP_USER'),sysdate);
END;
But am getting an error when I try to insert the data from the form
ORA-01403: no data found ORA-01403: no data found ORA-06512: at "ESDBA.cts_apps_temp_insert", line 5 ORA-04088: error during execution of trigger 'ESDBA.cts_apps_temp_insert'
Error Unable to process row of table CTS_APPS_TEMP.
OK
I tried printing the value of v('P105_DEVICE_NAME'); from a pl/sql block...It doesnt print anything..
Can anyone please tell mw why the page item value is becoming null?
Is there any other way I can use the Page item value in the trigger?
Thanks in Advance,
Nehal
Edited by: user11122439 on Jun 23, 2009 11:27 AM

Thanks for helping me out Tony.
It is a single row form. But the same form is used many time to add records for that particular server..
In the first form the user enters the server details. In the second form they need to associate applications with the server name they entered in the first form.
They can add any number of such applications.
The contenst in my form are
Server_name: ( read only field populated by the name they entered in the first form)
application_name:
Manger1:
Manager2:
When the user clicks on add button the applcaition should be associated to the server he added in the first form.For this I need the Id of the Server_name he added in the first form.
I also need to store this info in a temporary table apart from the original Server-App relationt able. Thats the reason I had database trigger which was also adding stuff to a temporary table apart from adding the relationships to the main table.
But even if we frget about hte temporary table can you please tell me how I can use the Page item value in form 1 and get its id from database and use it to insert server-app relation in second form?

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