oracle数据库定时任务dbms_job的用法详解

variable jobno number;
dbms_job.submit(:jobno, —-job号 
 'your_procedure;',—-执行的存储过程, ';'不能省略 
 next_date, —-下次执行时间 
 'interval' —-每次间隔时间，interval以天为单位
); 

show parameter job_queue_process;

select  from v$parameter where name='job_queue_processes';

alter system set job_queue_processes = 10;

字段（列） 类型 描述
job number 任务的唯一标示号
log_user varchar2(30) 提交任务的用户
priv_user varchar2(30) 赋予任务权限的用户
schema_user varchar2(30) 对任务作语法分析的用户模式
last_date date 一次成功运行任务的时间
last_sec varchar2(8) 如hh24:mm:ss格式的last_date日期的小时，分钟和秒
this_date date 正在运行任务的开始时间，如果没有运行任务则为null
this_sec varchar2(8) 如hh24:mm:ss格式的this_date日期的小时，分钟和秒
next_date date 下一次定时运行任务的时间

create table t(
 id varchar2(30),
 name varchar2(30)
);

create or replace procedure proce_t is
begin
 insert into t(id, name) values('1', to_char(sysdate, 'yyyy-mm-dd hh24:mi:ss'));
 mit;
end proce_t;
/

variable jobno number;
begin
 dbms_job.submit(:jobno,'proce_t;', sysdate, 'sysdate+1/24/60');
 mit;
end;
/

pl/sql procedure suessfully pleted
jobno
---------
25

sql> select job, next_date, next_sec, failures, broken from user_jobs;
 
 job next_date next_sec failures broken
---------- ----------- ---------------- ---------- ------
 25 2012/9/14 1 10:59:46 0 n

sql> select job, next_date, next_sec, failures, broken from user_jobs; 
 
 job next_date next_sec failures broken
---------- ----------- ---------------- ---------- ------
 25 2012/9/14 1 11:01:48 0 n

begin
 dbms_job.broken(25, true, sysdate);
 mit;
end;
/

pl/sql procedure suessfully pleted

sql> select job, next_date, next_sec, failures, broken from user_jobs; 
 
 job next_date next_sec failures broken
---------- ----------- ---------------- ---------- ------
 25 4000/1/1 00:00:00 0 y

sql> select job, next_date, next_sec, failures, broken from user_jobs; 
 
 job next_date next_sec failures broken
---------- ----------- ---------------- ---------- ------
 25 4000/1/1 00:00:00 0 y

begin
 dbms_job.run(25);
 mit;
end;
/

sql> select job, next_date, next_sec, failures, broken from user_jobs;
 
 job next_date next_sec failures broken
---------- ----------- ---------------- ---------- ------
 25 2012/9/14 1 11:06:17 0 n

show parameter job_queue_processes;

alter system set job_queue_processes=10;

variable jobno number;
begin
 dbms_job.submit(:jobno, 'proce_t;', sysdate, 'sysdate+1/24/12'); --interval是以天为单位的
 mit;
end;
/

select job,next_date,next_sec,failures,broken from user_jobs;

sql> select job,next_date,next_sec,failures,broken from user_jobs; 
 
 job next_date next_sec failures broken
---------- ----------- ---------------- ---------- ------
 26 2012/9/14 1 11:12:08 0 n
 25 2012/9/14 1 11:07:18 0 n

Interval => TRUNC(sysdate,'mi') + 1/(2460)

Interval => TRUNC(sysdate) + 1 +1/(24)

Interval => TRUNC(next_day(sysdate,'星期一'))+1/24

Interval =>TRUNC(LAST_DAY(SYSDATE))+1+1/24

Interval => TRUNC(ADD_MONTHS(SYSDATE,3),'Q') + 1/24

Interval => ADD_MONTHS(trunc(sysdate,'yyyy'),6)+1/24

Interval =>ADD_MONTHS(trunc(sysdate,'yyyy'), 12)+1/24