创建 序列 存储过程 job

 

1.目的：

写job 每三个小时 为单元，头一个三个小时 从 1到100 插入测试表 第二个三个小时 从 101到200插入测试表 第三个三个小时 从 301到400插入测试表.

 

2.处理方法：

2.1 创建序列.  初始值 1  增量 1 最大值无限制

2.2 创建存储过程, 利用for循环顺序读取序列的nextval 插入 测试表.

2.3 创建job. 定期调用 存储过程, 参数repeat_interval    =>  'FREQ=minutely;INTERVAL=2',

 /* every 2 minute */

 

3.创建序列

SYS @ prod >CREATE SEQUENCE seq1

     START WITH     1

     INCREMENT BY   1

     NOCACHE

     NOCYCLE;

 

Sequence created.

 

4.创建存储过程

调用序列给测试表 插入数据

SYS @ prod >CREATE OR REPLACE procedure insert_t1  is

    begin

    for i in 1..100 loop

    insert into t1 values(seq1.nextval);

    commit;

    end loop;

    end;

    /

 

Procedure created.

 

5.测试存储过程

SYS @ prod >exec insert_t1;

 

PL/SQL procedure successfully completed.

 

6.创建 job

方法一：

SYS @ prod >declare

  begin

  dbms_scheduler.create_job(

  job_name =>'job_insert_t1',

  job_type =>'stored_procedure',

  job_action =>'sys.insert_t1',

  start_date =>'05-JUN-14 10.50.00 AM ',

  repeat_interval    =>  'FREQ=minutely;INTERVAL=2', /* every minute */

enabled=> true,

  end_date           =>  '06-JUN-14 10.50.00 AM ',

  comments           =>  'My new job');

  END;

  /

 

PL/SQL procedure successfully completed.

 

方法二：

SYS @ prod >BEGIN 

DBMS_SCHEDULER.CREATE_JOB(  

job_name =>'job_insert_t1',  

job_type =>'STORED_PROCEDURE',  

job_action =>'insert_t1',  

repeat_interval =>'FREQ=DAILY; BYHOUR=18 ;BYMINUTE=30',   /* every day*/

enabled=> true,  

comments => 'job');

END;  

 

--每天18/30/00点执行job_insert_t1过程 

 

7.运行job

SYS @ prod >exec DBMS_SCHEDULER.RUN_JOB(JOB_NAME=>'job_insert_t1',USE_CURRENT_SESSION =>true);

 

PL/SQL procedure successfully completed.

 

8.查看对应包

包中分别包含了 运行job、删除job等存储过程

SYS @ prod >desc DBMS_SCHEDULER;

 

PROCEDURE RUN_JOB

 Argument Name                  Type                    In/Out Default?

 ------------------------------ ----------------------- ------ --------

 JOB_NAME                       VARCHAR2                IN

 USE_CURRENT_SESSION            BOOLEAN                 IN     DEFAULT

 

 PROCEDURE DROP_JOB

 Argument Name                  Type                    In/Out Default?

 ------------------------------ ----------------------- ------ --------

 JOB_NAME                       VARCHAR2                IN

 FORCE                          BOOLEAN                 IN     DEFAULT

 

9.删除job

SYS @ prod >exec dbms_scheduler.drop_job(job_name=>'job_insert_t1');

 

PL/SQL procedure successfully completed.

10.检查结果

检查 测试表中的数据确实在增加

select * from t1 order by n1 desc;

 

--最大值 1100

但是 查询 dba_jobs、user_jobs、all_jobs 没有任何信息

select * from dba_jobs;

 

select * from user_jobs;

 

select * from dba_jobs_running;

 

只在all_scheduler_job_log 中看到该job 运行的相关信息

select * from ALL_SCHEDULER_JOB_LOG order by log_date desc; 

11.删除 序列、job、存储过程

SYS @ prod >drop procedure insert_t1;

Procedure dropped.

SYS @ prod >drop sequence seq1;

Sequence dropped.

SYS @ prod >exec dbms_scheduler.drop_job(job_name=>'job_insert_t1');

PL/SQL procedure successfully completed.