Oracle错误ORA-03113: end-of-file on communication channel处理办法

机器遭遇断电，之后oracle就不能启动了，报错ORA-03113: end-of-file on communication channel （通信通道的文件结尾）

SQL> startup
ORACLE instance started.
 

Total System 
Global Area 1252663296 bytes

Fixed Size2227944 bytes

Variable Size704643352 bytes

Database 
Buffers 536870912 bytes
Redo Buffers 8921088 bytes

Database 
mounted.

ORA-03113: 
end-of-fileon
communication channel
Process ID: 8117
Session ID: 191 Serial number: 3
网上分析，可能由于昨晚数据库强制关闭，导致文件状态可能不一致，因为正常关闭数据库会同步校验各文件，使得重新启动的时候文件时间点一致。解决方案如下
启动DB

SQL> conn / 
as sysdba

Connected 
to an idle instance.
 
SQL> startup mount
ORACLE instance started.
直接reset不成功

SQL> select*
from v$log;
 

    GROUP# THREAD#SEQUENCE# BYTES BLOCKSIZE MEMBERS ARC
---------- ---------- ---------- ---------- ---------- ---------- ---
STATUS FIRST_CHANGE# FIRST_TIM NEXT_CHANGE# NEXT_TIME
---------------- ------------- --------- ------------ ---------

         1 1 112 52428800 512 1NO
INACTIVE 3826382 16-JUL-13 3857158 17-JUL-13
 

         3 1 114 52428800 512 1NO

CURRENT 
3886899 17-JUL-13 2.8147E+14
 

         2 1 113 52428800 512 1NO
INACTIVE 3857158 17-JUL-13 3886899 17-JUL-13
 
 

SQL> alterdatabase
open resetlogs;

alter 
database open resetlogs
*

ERROR atline 1:

ORA-01139: RESETLOGSoption
onlyvalid after
an incomplete database
recovery
 
 

SQL> recover 
database until time'2013-07-05'
Media recovery complete.

SQL> alterdatabase
open resetlogs;
 

Databasealtered.
成功。

注：如果 alterdatabase open resetlogs;执行提示失败，那么 alter database opennoresetlogs;