Scheduling a job in Oracle

Question

Hi ,
how can i schedule a job from Oracle ??
this is what i declared
create or replace PROCEDURE myjob
IS
v_job number;
begin
dbms_job.submit(v_job,
'PLSQL_program_I_want_to_run;',
sysdate,
'sysdate+1/24');
end;
ques :
1. how shld i schedule it to run every 15 minutes ? i saw from somewhere that 1/144 ==> 10 minutes ? i dun quite understand
if 1/24 equals 1 hr
then for 15 minutes
can i do this ((1/60)*15)/24 ??
2. once i execute this procedure manually , it shld be running as per the next sheduled dates ?
3. can this procedure somehow be set in such a way that if oracle db is up after being down for some reasons , this procedure can auto kickoff by itself ?
appreciate ur advise
tks & rdgs

Answer 1

Hi,
If you are using Oracle release 10g or higher you should be using dbms_scheduler instead of dbms_job for several reasons.
1) Scheduling every 15 minutes is much easier with dbms_scheduler e.g.
begin
dbms_scheduler.create_job(
job_name=>'myjob',
job_type=>'plsql_block',
job_action=>'scott.mypackage.myproc(3);',
repeat_interval=>'freq=hourly;byminute=0,15,30,45;bysecond=0',
enabled=>true
2) Now that jobs have real user-specified names, killing them is easier
exec dbms_scheduler.stop_job('myjob')
This will run the job at X:00, X:15, X:30, X:45 as long as the database is running (even after restarts) and you can pick any job_name you want.
This should meet all your requirements. Hope this helps.
-Ravi