After upgrading to Oracle, HISTORY_PURGE Job aborts with ORA-03113 error.

Document ID : KB000087783
Last Modified Date : 14/04/2018
Show Technical Document Details
Error Message :
ORA-03113: end-of-file on communication channel

After upgrading the Applications Managers Oracle installation to, HISTORY_PURGE Job aborts when it attempts to delete records created after the upgrade.

Job's output file displays the below error or similar:

ERROR at line 3: 
ORA-03113: end-of-file on communication channel 
Process ID: 28295 
Session ID: 495 Serial number: 6189


Cause type:
Root Cause: This issue is related to a change made in Oracle version
Oracle has recommended that the '_optimizer_unnest_all_subqueries' parameter be set to false at the session level as a workaround to the issue. Please contact Oracle for additional information regarding this parameter.

Fix Status: No Fix

Fix Version(s):
Additional Information:
Workaround :
The Oracle parameter '_optimizer_unnest_all_subqueries' can be set to specifically apply to the HISTORY_PURGE Job by editing the Automation Engine's $AW_HOME/sql/deljhist.sql script.

Please contact Automic Support for the SQL statement.