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Update an Assignment's Primary Flag Errors with FRM-40735: POST-Uate trigger raised unhanded exception ORA-04091 (Doc ID 1684748.1)

Last updated on FEBRUARY 19, 2019

Applies to:

Oracle Human Resources - Version 12.1.3 and later
Information in this document applies to any platform.


On : 12.1.3 version, Person / Assignment Issues

When attempting to update an assignment's primary flag so a different assignment is the primary one, the following error occurs.

FRM-40735: POST-UPDATE trigger raised unhanded exception ORA-04091

ORA-04091: table XX.XXXXXX is mutating

APP-PER-52156: You cannot update this assignment with these details. To correct the original problem please query this assignment and reapply your change.


The issue can be reproduced at will with the following steps:
1. Query employee > Assignment
2. create a new assignment for the same employee
3. Check Primary flag on new assignment
4. Save


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