如何在oracle中定制一个job

如何在oracle中定制一个job完成想要完成功能：
Connected to Oracle9i Enterprise Edition Release 9.2.0.1.0
Connected as system
--创建过程如下：
create or replace procedure p_test as
LV_SQL varchar2(200);
begin
  
   LV_SQL := 'truncate table catantest';
   EXECUTE IMMEDIATE LV_SQL;
end p_test;
 
SQL> select * from catantest;
 
DEPTNO DNAME          LOC
------ -------------- -------------
 
SQL> insert into catantest select * from depttest;
 
7 rows inserted
 
SQL> commit;
 
Commit complete
 
SQL> variable jobcatan number;
SQL> begin
  2  dbms_job.submit(:jobcatan,'P_TEST;',sysdate,'sysdate + 5/(24*60)');
  3  commit;
  4  end;
  5 
  6  /
 
PL/SQL procedure successfully completed
jobcatan
---------
3
 
SQL> begin
  2  dbms_job.run(:jobcatan);
  3  end;
  4  /
 
PL/SQL procedure successfully completed
jobcatan
---------
3
 
SQL> select * from catantest;
 
DEPTNO DNAME          LOC
------ -------------- -------------
 
SQL> insert into catantest select * from depttest;
 
7 rows inserted
 
SQL> commit;
 
Commit complete
 
SQL> select * from catantest;
 
DEPTNO DNAME          LOC
------ -------------- -------------
    10 ACCOUNTING     NEW YORK
    20 RESEARCH       DALLAS
    30 SALES          CHICAGO
    40 OPERATIONS    
    11 11             11
    12 11