使用dbms_scheduler調用shell腳本

--1,創建program
begin
  dbms_scheduler.create_program(program_name   => 'lcy_test_prog',
                                program_type   => 'EXECUTABLE',
                                program_action => '/lcytest/File_test.sh',
                                enabled        => true,
                                comments       => 'oracle database rman level 0 backup');
end;

--2,創建schedule 每天凌晨運行一次
begin
  dbms_scheduler.create_schedule(schedule_name   => 'lcy_test_sche',
                                 repeat_interval => 'freq=daily; byhour=0; byminute=0; bysecond=0;',
                                 comments        => 'oracle database rman level 0 backup schedule 1');
end;

--3,創建job,此處若提示權限問題，則需要grant 
--grant CREATE EXTERNAL JOB to db-user;
begin
  dbms_scheduler.create_job(job_name      => 'lcy_test_job',
                            program_name  => 'lcy_test_prog',
                            schedule_name => 'lcy_test_sche',
                            enabled       => true);
end;

--4,執行job,一般來說此處必會提示錯誤：
--ora-27369 job of type excutalble failed with exit code...
--請參考文檔：https://community.oracle.com/thread/557102
--通俗來說，需要修改$ORACLE_HOME/rdbms/admin/externaljob.ora文件
--將其中的run_user/run_group改爲自己DB服務器的用戶，並有權限可以執行externaljob.ora文件
begin
  --
  --DBMS_SCHEDULER.ENABLE('lcy_test_job');
  --
  dbms_scheduler.run_job(job_name => 'lcy_test_job');
  --
  --DBMS_SCHEDULER.DISABLE('lcy_test_job');
  
end;

-- All jobs
select * from user_scheduler_jobs;

-- Get information to job
select * from user_scheduler_job_log order by log_date desc;

-- Show details on job run
select * from user_scheduler_job_run_details;

以下爲報錯列表：

274661 - can't get owner of or permissions of externaljob.ora file
274662 - not running as root or externaljob.ora file is writable by group or other or externaljob.ora file not owned by root (can't switch user)
274663 - setting the group or effective group failed
274664 - setting the user or effective user failed
274665 - a user or group id was not changed successfully
274666 - cannot access or open externaljob.ora file
274667 - invalid run_user specified in externaljob.ora file
274668 - invalid run_group specified in externaljob.ora file
274669 - error parsing externaljob.ora file

274670 - extjobo is running as root user or group

參考文檔：

http://blog.itpub.net/23135684/viewspace-777177/

Clarification on Externaljob.ora and Permissions (文檔 ID 979186.1)

有問題基本上都是權限問題

NOTE:

1. Users using 11g should use the new method of specifying a credential which eliminates many of the issues mentioned in this note. External jobs which have a credential (available in 11g) run as the user specified in the credential.

2. Relinking the Binary (Using "relink all") might also change the permissions and ownership for files jssu,extjob,externaljob.ora.You need to manually change the permissions and ownership.As root user,please perform

# chown root $ORACLE_HOME/bin/extjob
# chmod 4750 $ORACLE_HOME/bin/extjob

# chown root $ORACLE_HOME/rdbms/admin/externaljob.ora
# chmod 640 $ORACLE_HOME/rdbms/admin/externaljob.ora

# chown root $ORACLE_HOME/bin/jssu
# chmod 4750 $ORACLE_HOME/bin/jssu