Write a Dbms_scheduler to run a job frequently

Question

Hi,
I need to write dbms_scheduler to run the job on monthly basis which would delete data from database which are of 2 year old from sysdate.
For Eg: I have 50000 records in my table which are of differetn dates stored in database since 3 years.
If I run the job today, records which are created before today's date 2 years back should be deleted.
Can any one help me in step by step process as how can I do it as I am new in writing jobs.
Thanks in advance.

Answer 1

HI, thx for the info.
I want to run this job from front end application code (calling as a procedure within java or oracle bpm programming) instead of running from database level.
How can I do that. How can I pass arguments for this as I have parameter for my procedure. Below given are my procedure and job.
create or replace
procedure requests_delete_proc(p_request_date string)
as
request_count number;
nodatafound exception;
begin
select count(request_id) into request_count from max_request_dtls
where requested_date < to_date(p_request_date,'dd/mm/yyyy') - (2*365);
if request_count <> 0 then
delete from max_req_history_dtls
where request_id in
(select request_id from max_request_dtls
where requested_date < add_months(to_date(p_request_date,'dd-MON-yyyy'),-(2 * 365))
delete from max_request_dtls
where requested_date < add_months(to_date(p_request_date,'dd-MON-yyyy'),-(2 * 365));
dbms_output.put_line('requests deleted');
commit;
else
raise nodatafound;
end if;
exception
when nodatafound then
dbms_output.put_line('no records found for mentioned requested date');
end requests_delete_proc;
BEGIN
DBMS_SCHEDULER.create_job (
job_name => 'JOB_DELETEOLD',
job_type => 'STORED_PROCEDURE',
job_action => 'requests_delete_proc',
number_of_arguments => 1,
start_date => SYSTIMESTAMP,
repeat_interval => 'freq=MONTHLY; BYMONTHDAY=1; byhour=1; byminute=0',
end_date => NULL,
enabled => TRUE,
comments => 'JOB_DELETEOLD');
END;
BEGIN
DBMS_SCHEDULER.SET_JOB_ARGUMENT_VALUE (
job_name => 'JOB_DELETEOLD',
argument_name => 'requested_date',
argument_value => sysdate);
END;
Can I club these 2 and put them in a package and call the same in code.
pls suggest.