All , any idea what is going in one of my database SQL> exec dbms_workload_repository.create_snapshot; BEGIN dbms_workload_repository.create_snapshot; END; * ERROR at line 1: ORA-00600: internal error code, arguments: [kewrose_1], [600], [ORA-00600: internal error code, arguments: [ktspgfb-1], [], [], [], [], [], [], [], [], [], [], [] ], [], [], [], [], [], [], [], [], [] ORA-06512: at "SYS.DBMS_WORKLOAD_REPOSITORY", line 99 ORA-06512: at "SYS.DBMS_WORKLOAD_REPOSITORY", line 122 ORA-06512: at line 1 appreciate any suggestions thanks Kart