昨晚下班的时候，我准备关闭本机的虚拟机上的ORACLE数据库后准备下班，但
是由于我SecureCRT开了多个窗口，结果一不小心，疏忽之下在一个生产服务器上执行了shutdown
immediate命令，大概过了6到7秒，发现该命令还没有响应，我才发现我这个命令执行错了服务器。一惊之下，想都没有想直接CTRL+C想中断这个
操作。 如下所示：
SQL> shutdown immeidate;
SP2-0717: illegal SHUTDOWN option
SQL> shutdown immediate;
^C^C^C^C^C
ORA-01013: user requested cancel of current operation
于是我在另外一个窗口里面查看了一下告警日志文件，发现数据库已经关闭了一些进程。大体情况如下所示
tail -40f alert_SCM2.log
Wed Aug 6 17:54:37 2014
ARCH shutting down
ARC8: Archival stopped
Wed Aug 6 17:54:42 2014
ARCH shutting down
ARC7: Archival stopped
Wed Aug 6 17:54:47 2014
ARCH shutting down
ARC6: Archival stopped
Wed Aug 6 17:54:52 2014
ARCH shutting down
ARC5: Archival stopped
Wed Aug 6 17:54:57 2014
ARCH shutting down
ARC4: Archival stopped
Wed Aug 6 17:55:05 2014
CLOSE: Error 1013 during database close
Wed Aug 6 17:55:05 2014
SMON: enabling cache recovery
SMON: enabling tx recovery
Wed Aug 6 17:55:05 2014
ORA-1013 signalled during: ALTER DATABASE CLOSE NORMAL...
Wed Aug 6 17:55:07 2014
ARCH shutting down
ARC2: Archival stopped
Wed Aug 6 17:55:12 2014
ARCH shutting down
ARC1: Archival stopped
Wed Aug 6 17:55:17 2014
ARC3: Becoming the heartbeat ARCH
ARC3: Archiving disabled
ARCH shutting down
ARC3: Archival stopped
Wed Aug 6 17:55:17 2014
ARCH shutting down
Wed Aug 6 17:55:17 2014
ARC0: Archival stopped
Wed Aug 6 17:55:18 2014
Thread 1 closed at log sequence 97562
Successful close of redo thread 1
^C
于是立马查看数据库的状态，看看是否正常，结果如下所示，出现了ORA-00604、ORA-00376、ORA-01110等错误。
SQL> SQL> SQL> select status from v$instance;
select status from v$instance
*
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 2
ORA-00376: file 1 cannot be read at this time
ORA-01110: data file 1: '/u01/oradata/SCM2/system01.dbf'
一惊之下，立马退出了会话，重新登录后（当时不怎么冷静，慌忙之下已经不谈定了）
sqlplus / as sysdba
SQL*Plus: Release 10.2.0.4.0 - Production on Wed Aug 6 17:57:11 2014
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
Connected.
SQL> select status from v$instacne;
select status from v$instacne
*
ERROR at line 1:
ORA-01012: not logged on
SQL> shutdown immdeiate;
SP2-0717: illegal SHUTDOWN option
SQL> exit
Disconnected
SQL> shutdwon immeidiate;
SP2-0734: unknown command beginning "shutdwon i..." - rest of line ignored.
SQL> shutdown immediate;
ORA-24324: service handle not initialized
ORA-24323: value not allowed
ORA-01089: immediate shutdown in progress - no operations are permitted
此时告警日志里面有大量的这类错误。
无奈之下，我只能使用shutdown abort命令了，这时候我反而冷静下来。但是居然报ORA-01031: insufficient privileges 错误，立马退出然后重新登录后，将数据库关闭然后重新启动。
SQL> shutdown abort
ORA-01031: insufficient privileges
sqlplus / as sysdba
SQL*Plus: Release 10.2.0.4.0 - Production on Wed Aug 6 18:15:00 2014
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
Connected.
SQL> shutdown abort
ORACLE instance shut down.
SQL> startup
ORACLE instance started.
Total System Global Area 7516192768 bytes
Fixed Size 2095640 bytes
Variable Size 5167384040 bytes
Database Buffers 2298478592 bytes
Redo Buffers 48234496 bytes
Database mounted.
Database opened.
SQL> exit
重新启动后，监控告警日志，发现没有异常出现，逐个检查后发现没有什么
问题，一颗悬着的心才淡定下来。不过还是要总结一下：这是一次低级失误，也是印象比较深的一次失误，我之所以要记录下来，一来这也是一个案例，二来要自己
谨记于心。整个过程中，发现自己一直不冷静、不谈定。其实本来已经shutdown了数据库，那应该先冷静分析一下，到底是等数据库关闭后重新启动，还是
中断这个进程。 本身ORACLE数据库已经关闭了一些进程，如果此时中断shutdown
进程，明显是个不明智的决定。错误的决策导致后面一系列问题的出现，典型的修为不够！ 老大给我的邮件叫我下次应该 relax, calm down
and be careful 。 谨记于心。