Error at Command Line:107 Column:0
Error report:
SQL Error: ORA-02055: distributed update operation failed; rollback required
ORA-00001: unique constraint (STUDENT.EMPLOYEE_ID_PK_OTHERS) violated
ORA-02063: preceding line from FOO
ORA-06512: at "STUDENT.ON_EMPLOYEES_UPDATE", line 9
ORA-04088: error during execution of trigger 'STUDENT.ON_EMPLOYEES_UPDATE'
02055. 00000 -  "distributed update operation failed; rollback required"
*Cause:    a failure during distributed update operation may not have
           rolled back all effects of the operation.  Since
           some sites may be inconsistent, the transaction must roll back to
           savepoint or entirely
*Action:   rollback to a savepoint or rollback transaction and resubmit
rollback complete.