oracle 使用job定时自动重置sequence

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;