ORA-01422 + ORA-06512 + "SYSMAN.MGMT_TIME_SYNC"

Platform: Windows2003

During Patchset applying process from 10gr2(10.2.0.1.0) to 10gr2(10.2.0.4.0) "catupgrd.sql" ended with below error.

ERROR at line 1:

ORA-01422: exact fetch returns more than requested number of rows

ORA-06512: at "SYSMAN.MGMT_TIME_SYNC", line 193

ORA-06512: at line 2

All oracle component was successfully upgraded except OEM becuase of above error.

Clause: After searching on metalink and google didn't find proper reason why it is happened.

Solution: Re-Run catupgrd.sql script