1.创建回收站清理的存储过程
create or replace procedure purge_recyclebin as
begin
execute immediate 'purge dba_recyclebin';
end;
/

2.创建定时任务
variable job number;
begin
dbms_job.submit(:job,'purge_recyclebin;',trunc(sysdate,'hh24'),'trunc(sysdate+7,''hh24'')');
commit;
end;
/

3.确认job
select * from dba_jobs;

4.修改定时任务

begin
dbms_job.next_date(1, sysdate);
end;
/

begin
dbms_job.interval(1, 'trunc(sysdate,''hh'')+24*7+12/24');
end;
/

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[oracle] oracle定时清理回收站