DBA_JOBS describes all jobs in the database.
USER_JOBS describes all jobs owned by the current user
1 select job,what,to_char(last_date,'yyyy-mm-dd HH24:mi:ss'),
  to_char(next_date,'yyyy-mm-dd HH24:m),interval from dba_jobs where job in (325,295)
2 select job,what,last_date,next_date,interval from dba_jobs where job in (1,3);

查询job的情况。
show paramter background_dump_dest.
看alter.log 和trace

SVRMGR> select * from dba_jobs;

初始化相关参数job_queue_processes
alter system set job_queue_processes=39 scope=spfile;//最大值不能超过1000

job_queue_interval = 10 //调度作业刷新频率秒为单位

DBA_JOBS describes all jobs in the database.
USER_JOBS describes all jobs owned by the current user
1 select job,what,to_char(last_date,'yyyy-mm-dd HH24:mi:ss'),to_char(next_date,'yyyy-mm-dd HH24:m),interval from dba_jobs where job in (325,295)
2 select job,what,last_date,next_date,interval from dba_jobs where job in (1,3);