Execute the same trigger again within the trigger..

Hi Guys,
I want to execute the same trigger again while i am within the same trigger.
Like for example if this is the when-button-pressed trigger of my button in the block:
Declare
abc number;
begin
if abc = 9 then
when-button-presses == should start from the Declare again...
else
null;
end if;
end;
This is just an eample i have written a huge code in my when button press trigger.
Is there any built-in to re-execute the same trigger within the trigger.
Plis Help,
Imran Baig

There is an EXECUTE_TRIGGER built-in, but using program units is preferred. If you look up EXECUTE_TRIGGER in online help, there are reasons given why you probably shouldn't use it.

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