Purging Database Tables and Modifying Retention Periods > Backup: Default Retention for HP Data Protector Database Tables
  
Version 10.0.01
Backup: Default Retention for HP Data Protector Database Tables
Table Description
Table Name
Default Retention
Notes
Skipped backup files
apt_hpd_skipped_backup_file
180
Cannot be modified *
Session messages
apt_hpd_session_message
See notes.
Retention between:
(sysdate-180) and (sysdate-120)
Message Log
apt_hpd_session_message_log
90 days
KEEP_HPD_SESSION_MSG_LOG_DAYS
* Future software versions may enable modifications.
Example of Customizing the Message Log retention:
update ptl_system_parameter set param_value = '30' where param_name ='KEEP_HPD_SESSION_MSG_LOG_DAYS';