存储过程:
     create or replace procedure p_money is
        begin
              update t_1 set money=money-1;
              commit;
        end;
job:
       declare
             jobnum number;
        begin
              dbms_job.submit(:jobnum,'p_money;',last_day(trunc(sysdate))+1+1/1440,'add_months(last_day(trunc(sysdate))+1+1/1440,1)');
        end;