Oracle 12c : How To Purge The UNIFIED AUDIT TRAIL




Oracle 12c : How To Purge The UNIFIED AUDIT TRAIL 





APPLIES TO:

Oracle Database - Enterprise Edition - Version 12.1.0.1 and later
Information in this document applies to any platform.

GOAL

 How to purge the  UNIFIED_AUDIT_TRAIL table ?

SOLUTION


The unified audit trail can be purged using the DBMS_AUDIT_MGMT package: 

qlplus / as sysdba
SQL>  select  count(*) from unified_audit_trail;

  COUNT(*)
----------
      2619

SQL> 
BEGIN
DBMS_AUDIT_MGMT.CLEAN_AUDIT_TRAIL(
audit_trail_type         =>  DBMS_AUDIT_MGMT.AUDIT_TRAIL_UNIFIED,
use_last_arch_timestamp  =>  FALSE);
END;
/

PL/SQL procedure successfully completed.

SQL>  select  count(*) from unified_audit_trail;

  COUNT(*)
----------
         1


You can also use the last_arch_timestamp, if you don't want to purge all the audit record and kept the most recent record:
BEGIN
DBMS_AUDIT_MGMT.SET_LAST_ARCHIVE_TIMESTAMP(audit_trail_type => DBMS_AUDIT_MGMT.AUDIT_TRAIL_OS,last_archive_time => TO_TIMESTAMP('10-SEP-0714:10:10.0','DD-MON-RRHH24:MI:SS.FF'));
END;
/


BEGIN
DBMS_AUDIT_MGMT.CLEAN_AUDIT_TRAIL(
   audit_trail_type         =>  DBMS_AUDIT_MGMT.AUDIT_TRAIL_UNIFIED,
   use_last_arch_timestamp  =>  TRUE);
END;
/
Since Unified Auditing caches the audit trail in memory to implement a 'lazy write' feature that helps performance, some of the records eligible for deletion may still linger in the cache, to also first flush this cache add a call to: DBMS_AUDIT_MGMT.FLUSH_UNIFIED_AUDIT_TRAIL; before the call to
dbms_audit_mgmt.clean_audit_trail, this will cause more consistent / expected results.
BEGIN
DBMS_AUDIT_MGMT.FLUSH_UNIFIED_AUDIT_TRAIL;
END;
/
enable the Pure Unified Auditing

In order to enable to Pure Unified Auditing you will need to perform the following steps:
1.     Shutdown your Oracle Databases and listeners that are associated to the Oracle Home
2.     Relink the Oracle executable to support the Unified Auditing
3.     Start your Oracle instances and listener
In order to relink the Oracle executable you will need to execute the "make" command from the $ORACLE_HOME/rdbms/lib directory:

make -f ins_rdbms.mk uniaud_on ioracle

Now, after the relink has been completed, let's query V$OPTION again to verify that the Unified Auditing feature is enabled:
SQL> select value
     from V$OPTION
     where parameter = 'Unified Auditing';

VALUE
-------------------------------------------
TRUE

References







Comments

  1. Really valuable post. I am waiting for your next post. This post is very valuable and i think it's no need to change. visit website to know more info.

    ReplyDelete
  2. This is quite interesting blog! If you need help in do my general chemistry homework then don't panic and just contact us right now. Our best science specialists are sitting tight for you to help and guide you through comprehension of sub-atomic structures, natural science, inorganic science, standards of connected science, organic chemistry, tips of concoction liberation and each other theme of your science course according to standard grade.

    ReplyDelete
  3. Database experts are working in the mode that they can develop the right thing for their customer and modify it for the easiness. YOu can also get the sop writing services and apply it in your practical life to achieve the goal.

    ReplyDelete
  4. I actually wanna follow it for my website but I need more clearance about this matter. honestly I don't have writing knowledge much more that's why I am trying to follow Google and last I got your site. thanks god. but I got another one website : like yours. can you please visit it and suggest me which one is best useful link

    ReplyDelete
  5. Computer languages are difficult one but we really need to know it. This is necessary for the computer users also it is necessary for database users. So thanks for sharing this. https://www.writingaresearchproposal.com/research-proposal-ideas/

    ReplyDelete
  6. Knowing about database is one of the important task but yes you can also do it. You just need to follow some of platforms or get a person who is very expert in this field. http://www.grammarsoftware.info/paperrater-com-review/

    ReplyDelete
  7. If anyone is interested in capstone ideas for their college project and thesis then we have best ideas here. In which you can get useful tips regarding their business.

    ReplyDelete

Post a Comment

Dear User,

Thank you very much for your kind response

Popular posts from this blog

Agent Installation on Windows Server. SQL Server (Failover Cluster) target addition in OEM 12c

Oracle 10g/11g Linux:SMS the alert logs ORA- errors generated in timestamp

Oracle 11g: Install Instant Client 11.2.0.3.0 on Linux x86_64 Server.