ORA-01092 ORA-00704 ORA-39700 database must be opened with UPGRADE option

   数据库升级意外中止，启动数据库时报错，提示如下。

SQL> startup;
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: 15638
Session ID: 191 Serial number: 1

以STARTUP UPGRADE启动实例 
执行catupgrd.sql脚本修改数据字典即可，执行时间较长请耐心等待。

SQL>startup upgrade;
SQL>@?/rdbms/admin/catupgrd.sql;
SQL>@?/rdbms/admin/catalog.sql;
SQL>@?/rdbms/admin/catproc.sql;
SQL>@?/rdbms/admin/utlrp.sql;
SQL>shutdown immediate;
SQL>startup;