SQL & PL/SQL

Hi All,

I am trying to understand where to use dbms_job.submit and dbms_job.run. The following is my understanding

The below code creates a job but the job doesnt run.
declare
v_jobno binary_integer;
begin

dbms_job.submit ( job => v_jobno,

what => 'testjob(JOB);',

next_date => sysdate + numtodsinterval(5,'minute')
*);*
dbms_output.put_line('Jobnumber: ' || v_jobno);
commit;
end;

to created and run the job the following code should be used

declare
v_jobno binary_integer;
begin

dbms_job.submit ( job => v_jobno,
what => 'testjob(JOB);',
next_date => sysdate + numtodsinterval(5,'minute')
);
dbms_output.put_line('Jobnumber: ' || v_jobno);
dbms_job.run(v_jobno); commit;
end;

Am i correct. Is my understaning correct or work. Please advice me where to used dbms_job.submit and dbms_job.run

Thanks
Sami