fnd_request.submit_request(parameters) by using this we can submit the concurrent program thru pl/sql.

May need to include a line before this for Apps initialization:

FND_GLOBAL.APPS_INITIALIZE (user_id resp_id resp_appl_id)

The below procedure will submit the request from the back end where

application is Short name of application under which the program is registered.

program is concurrent program name for which the request has to be submitted

declare
conc_id number(10);

begin
FND_GLOBAL.APPS_INITIALIZE (user_id resp_id resp_appl_id);
conc_id: submit_request('application' 'program');
dbms_output.put_line(conc_id);
end;

The above program will print the Concurrent request ID.