Updating board in oracle form

问题

Is there anything like thread in Oracle forms for updating one part? I want to create a message box and update that part with the new events, so I need to have something like thread or Timer in my oracle form. Any examples or ideas?

I am working with Oracle forms 6i, but I can convert to 10g also. My oracle server version is 9.

回答1:

The help file/ online documentation in Oracle Forms features sample code on creating timers.

Create a timer, perhaps under WHEN-NEW-FORM-INSTANCE trigger

DECLARE
    timer_id timer;
begin
    timer_id := CREATE_TIMER('TIMER1',20000,REPEAT);
end;

This will create a repeating timer which will fire every 20 seconds.

Now under WHEN-TIMER-EXPIRED trigger write the timer expiration handler

declare 
     timer_id timer;

begin
     -- code for updating the relevant field(s) 
end;

来源：https://stackoverflow.com/questions/4846821/updating-board-in-oracle-form