我的 Windows 7 开发机器上安装了 Oracle 12.0.1.2.0（企业包）。意外断电后，Oracle 引擎无法启动：
因此，我无法连接 SQLplus 来执行任何命令，因此，我在网上找到的用于清除 REDO 文件的指南都不适合我。
ORA-01033: ORACLE initialization or shutdown in progress
01033. 00000 - "ORACLE initialization or shutdown in progress"
*Cause: An attempt was made to log on while Oracle is being started up or shutdown.
*Action: Wait a few minutes. Then retry the operation.
Vendor code 1033
这是启动日志：
...
Mon Jun 19 10:56:47 2017
Beginning crash recovery of 1 threads
parallel recovery started with 3 processes
Mon Jun 19 10:56:47 2017 …