oracle upgrade patch

SQL> startup
ORACLE instance started.

Total System Global Area 4.9973E+10 bytes
Fixed Size 2264816 bytes
Variable Size 3.3018E+10 bytes
Database Buffers 1.6911E+10 bytes
Redo Buffers 42065920 bytes
Database mounted.
ORA-01589: must use RESETLOGS or NORESETLOGS option for database open


SQL> alter database open RESETLOGS  ;
alter database open RESETLOGS
*
ERROR at line 1:
ORA-01092: ORACLE instance terminated. Disconnection forced
ORA-00704: bootstrap process failure
ORA-39700: database must be opened with UPGRADE option
Process ID: 18438
Session ID: 66 Serial number: 3



SQL> startup UPGRADE;
ORACLE instance started.

Total System Global Area 4.9973E+10 bytes
Fixed Size 2264816 bytes
Variable Size 3.3018E+10 bytes
Database Buffers 1.6911E+10 bytes
Redo Buffers 42065920 bytes
Database mounted.
Database opened.

@$ORACLE_HOME/rdbms/admin/catalog.sql;
@$ORACLE_HOME/rdbms/admin/catproc.sql;
@$ORACLE_HOME/rdbms/admin/utlrp.sql