oracle啟動時出現ORA-00205錯誤的方法

當啟動oracle時出現ORA-00205錯誤時，把原來的控制元件檔案刪除，重建控制檔案！

SQL> startup
ORACLE 例程已經啟動。

Total System Global Area  126950220 bytes
Fixed Size                   453452 bytes
Variable Size             109051904 bytes
Database Buffers           16777216 bytes
Redo Buffers                 667648 bytes
ORA-00205: ?????????????????????

SQL> select instance_name,status from v$instance;

INSTANCE_NAME                    STATUS
-------------------------------- ------------------------
risesoft                         STARTED