Purge jorbs and export dataset on SYS.AUD$ table

Hi everyone

I had the sys.aud$ table on another tablespace called "AUDITORIA.dbf"

I want to create a job than purge the data from >30 days.

But before the purge is done, i want to export the dataset of audit

Can anyone help me with this?

I got this script to see the audit logs :

SELECT username,

       extended_timestamp,

       owner,

       os_username,

       terminal,

       obj_name,

       action_name,

       sql_text

FROM   dba_audit_trail

where timestamp between '17-AUG-2016' and '19-AUG-2016';

Regards,.