一、赋予用户创建和删除sequence的权限

grant create any sequence to user_name;

grant drop any sequnce to user_name;

二、查看job设置

show parameter job

如果job_queue_processes=0 ，那么将该值更新为1

alter system set job_queue_processes=1;

三、创建存储过程用于删除和创建sequence

create or replace procedure ClearSeq as

  n_count number(8);

begin

  select count(1)

    into n_count 

    from user_sequences t

   where t.sequence_name = 'SEQ_ID';

   

  if n_count > 0 then  

    execute immediate 'drop sequence SEQ_ID';

  end if;

  

  execute immediate 'create sequence SEQ_ID 

  minvalue 1 

  maxvalue 99999999 

  start with 1 

  increment by 1 

  NOCYCLE

  NOCACHE';  

  commit;

end;

四、创建job执行上述存储过程

declare  

job number;     

begin

sys.dbms_job.submit(job,'clearseq;',sysdate,'sysdate+1');

end;