连接oracle数据库，修改启动定时任务所需项 job_queue_processes

C:UsersAdministrator>sqlplus sys/sys@192.168.1.251/orcl as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on 星期六 12月 16 03:51:28 2017

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连接到:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> select value from v$parameter where name like '%job_queue_processes%'
  2
SQL> alter system set job_queue_processes = 30
  2
SQL> alter system set job_queue_processes = 30;

系统已更改。

SQL> select value from v$parameter where name like '%job_queue_processes%' ;

VALUE
--------------------------------------------------------------------------------

30

SQL> select value from v$parameter where name like '%job_queue_processes%'