记录一次Oracle sysdba 连接不上的问题

$ sqlplus /nolog

SQL> conn /as sysdba
输出：Connected to an idle instance

SQL> startup
输出：
ORA-01012: not logged on Process ID: 0 Session ID: 0 Serial number: 0

SQL> shutdown
输出：
ORA-01089: immediate shutdown or close in progress - no operations are permitted

强制关闭数据库
SQL> shutdown abort;
输出：ORACLE instance shut down.

使用startup force打开数据库
SQL> startup force;
输出：
ORACLE instance started.
Total System Global Area 849530880 bytes
Fixed Size 1339824 bytes
Variable Size 641732176 bytes
Database Buffers 201326592 bytes
Redo Buffers 5132288 bytes
Database mounted.
Database opened.

SQL> conn /as sysdba
输出：Connected. 连接成功

突然感觉没有什么比重启更好使的了 如果有哪就是强制重启