Home Database Mysql Tutorial Oracle通过JOB定时创建序列

Oracle通过JOB定时创建序列

Jun 07, 2016 pm 05:18 PM
database

因为业务需要每月需要增加一个序列,想到了使用job定时创建,每次创建一年的。写此job的过程中遇到一些问题,在此记录一下。看来

因为业务需要每月需要增加一个序列,,想到了使用job定时创建,每次创建一年的。写此job的过程中遇到一些问题,在此记录一下。

第一步:写创建序列(sequence)的存储过程。代码如下:

创建存储过程成功,但测试该报错了:

SQL> exec pro_create_seq('FACTORY_NOTICE_INFO_DB_');
 
begin pro_create_seq('FACTORY_NOTICE_INFO_DB_'); end;
 
ORA-01031: 权限不足
ORA-06512: 在 "YCPS.PRO_CREATE_SEQ", line 16
ORA-06512: 在 line 2

在网上搜索解决方法发现原来是在存储过程中ROLE无效,需要显示授权。

即有两种解决方法:

1、通过GRANT CREATE SEQUENCE TO YCPS;来显示给用户授权
2、修改存储过程,加入Authid Current_User时存储过程可以使用role权限。

我采用了第二种方法,即加入Authid Current_User,修改后的存储过程如下:

SQL> exec pro_create_seq('FACTORY_NOTICE_INFO_DB_');

PL/SQL procedure successfully completed

执行成功。

第二步:创建job,定时调用存储过程来创建sequence。

SQL> variable job1 number;
SQL>  begin
  2   dbms_job.submit(:job1,'PRO_CREATE_SEQ(''FACTORY_NOTICE_INFO_DB_'');PRO_CREATE_SEQ(''FACTORY_NOTICE_INFO_XB_'');',sysdate,'add_months(TRUNC(SYSDATE,''yyyy''),12)');
  3   commit;
  4   end;
  5  /
 
PL/SQL procedure successfully completed
job1
---------
84
 
SQL> begin
  2  dbms_job.run(84);
  3  end;
  4  /
 
begin
dbms_job.run(84);
end;
 
ORA-12011: 无法执行 1 作业
ORA-06512: 在 "SYS.DBMS_IJOB", line 637
ORA-06512: 在 "SYS.DBMS_JOB", line 284
ORA-06512: 在 line 3 

可见,job创建成功了,但执行出错。查询ORA-12011错误的说明如下:

ORA-12011: execution of string jobs failed Cause: An error was caught in dbms_ijob.run from one or more jobs which were due to be run. Action: Look at the alert log for details on which jobs failed and why.   SQL> select value from v$diag_info where;
 
VALUE
--------------------------------------------------------------------------------
/u01/app/Oracle/diag/rdbms/ycps/ycps1/trace

上面查找到alert log的路径,日志文件内容如下:

Thu Aug 16 14:30:57 2012
Errors in file /u01/app/oracle/diag/rdbms/ycps/ycps1/trace/ycps1_ora_2622362.trc:
ORA-12012: 自动执行作业 84 出错
ORA-01031: 权限不足
ORA-06512: 在 "YCPS.PRO_CREATE_SEQ", line 15
ORA-06512: 在 line 1

可见,仍然是权限问题。然而通过exec pro_create_seq('FACTORY_NOTICE_INFO_DB_');调用存储过程却可以执行,很让人费解。后来说需要显式授权,也就是前面提到的方法2,于是测试了一下,竟然成功了:

SQL> conn sys/oracle@psdb as sysdba
Connected to Oracle Database 11g Enterprise Edition Release 11.2.0.1.0
Connected as SYS
 
SQL> grant create sequence to ycps;
 
Grant succeeded
 
SQL> conn ycps/ycps@psdb
Connected to Oracle Database 11g Enterprise Edition Release 11.2.0.1.0
Connected as ycps
 
SQL> begin
  2  dbms_job.run(84);
  3  end;
  4  /
 
PL/SQL procedure successfully completed
看来Authid Current_User的使用是有局限的,在通过存储过程来执行DDL语句时需要注意授权问题。

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