丢失所有控制文件，并且异常关闭数据库，场景模拟如下：
00:43:07 SQL> insert into scott.test values (10);
1 row created.
00:43:22 SQL> insert into scott.test values (11);
1 row created.
00:43:25 SQL> commit;
Commit complete.
00:43:27 SQL> alter system switch logfile;
System altered.
00:43:29 SQL> /
System altered.
00:43:31 SQL> /
System altered.
00:43:36 SQL> shutdown abort;database 异常关闭
ORACLE instance shut down.
00:43:44 SQL> !
[oracle@work dbs]$ rm /disk1/oradata/test/control02.ctl
[oracle@work dbs]$ rm /disk2/oradata/test/control03.ctl
[oracle@work dbs]$ rm /u01/app/oracle/oradata/test/control01.ctl
[oracle@work dbs]$ !sql
sqlplus / as sysdba
SQL*Plus: Release 10.2.0.1.0 - Production on Sat Aug 27 00:44:11 2011
Copyright (c) 1982, 2005, Oracle.  All rights reserved.
Connected to an idle instance.
00:44:11 SQL>
00:44:11 SQL> startup
ORACLE instance started.
Total System Global Area  176160768 bytes
Fixed Size                  1218364 bytes
Variable Size              88082628 bytes
Database Buffers           83886080 bytes
Redo Buffers                2973696 bytes
ORA-00205: error in identifying control file, check alert log for more info
 
恢复步骤：
（1）非正常关库，重建控制文件
00:44:15 SQL> @/home/oracle/control.sql
00:44:25 SQL> CREATE CONTROLFILE REUSE DATABASE "TEST" NORESETLOGS  NOARCHIVELOG
00:44:25   2      MAXLOGFILES 16
00:44:25   3      MAXLOGMEMBERS 4
00:44:25   4      MAXDATAFILES 100
00:44:25   5      MAXINSTANCES 1
00:44:25   6      MAXLOGHISTORY 20
00:44:25   7  LOGFILE
00:44:25   8    GROUP 1 '/u01/app/oracle/oradata/test/redo01a.log'  SIZE 10M,
00:44:25   9    GROUP 2 '/u01/app/oracle/oradata/test/redo02a.log'  SIZE 10M,
00:44:25  10    GROUP 3 '/u01/app/oracle/oradata/test/redo03a.log'  SIZE 10M
00:44:25  11  -- STANDBY LOGFILE
00:44:25  12  DATAFILE
00:44:25  13    '/u01/app/oracle/oradata/test/system01.dbf',
00:44:25  14    '/u01/app/oracle/oradata/test/rtbs01.dbf',
00:44:25  15    '/u01/app/oracle/oradata/test/sysaux01.dbf',
00:44:25  16    '/u01/app/oracle/oradata/test/users01.dbf'
00:44:25  17  CHARACTER SET ZHS16GBK
00:44:25  18  ;
Control file created.
00:44:26 SQL> select checkpoint_change# from v$database;
CHECKPOINT_CHANGE#
------------------
325588
00:44:35 SQL> select checkpoint_change# from v$datafile;
CHECKPOINT_CHANGE#
------------------
325588
325588
325588
325588
00:44:38 SQL> select checkpoint_change# from v$datafile_header;
CHECKPOINT_CHANGE#
------------------
325588
325588
325588
325588
00:44:41 SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01113: file 1 needs media recovery
ORA-01110: data file 1: '/u01/app/oracle/oradata/test/system01.dbf'
00:44:47 SQL> archive log list;
Database log mode              No Archive Mode
Automatic archival             Disabled
Archive destination            /u01/app/oracle/product/10.2.0/db_1/dbs/arch
Oldest online log sequence     57
Current log sequence           59
00:45:27 SQL> recover database until cancel; 
或者 23:35:59 SQL> recover database until cancel using  backup controlfile;
ORA-00279: change 325588 generated at 08/27/2011 00:43:36 needed for thread 1
ORA-00289: suggestion : /u01/app/oracle/product/10.2.0/db_1/dbs/arch1_59_759630389.dbf
ORA-00280: change 325588 for thread 1 is in sequence #59
00:45:43 Specify log: {=suggested | filename | AUTO | CANCEL}
cancel
ORA-01547: warning: RECOVER succeeded but OPEN RESETLOGS would get error below
ORA-01194: file 1 needs more recovery to be consistent
ORA-01110: data file 1: '/u01/app/oracle/oradata/test/system01.dbf'
ORA-01112: media recovery not started
（2）通过当前redo 日志进行database recover
00:45:52 SQL> select * from v$log;
GROUP#    THREAD#  SEQUENCE#      BYTES    MEMBERS ARC STATUS           FIRST_CHANGE# FIRST_TIM
---------- ---------- ---------- ---------- ---------- --- ---------------- ------------- ---------
1          1         58   10485760          1 NO  INACTIVE                325585 27-AUG-11
3          1         57   10485760          1 NO  INACTIVE                325583 27-AUG-11
2          1         59   10485760          1 NO  CURRENT                 325588 27-AUG-11
00:46:02 SQL> col member for a50
00:46:12 SQL> select group# ,member from v$logfile;
GROUP# MEMBER
---------- --------------------------------------------------
2 /u01/app/oracle/oradata/test/redo02a.log
1 /u01/app/oracle/oradata/test/redo01a.log
3 /u01/app/oracle/oradata/test/redo03a.log
00:46:18 SQL> recover database until cancel;
ORA-00279: change 325588 generated at 08/27/2011 00:43:36 needed for thread 1
ORA-00289: suggestion : /u01/app/oracle/product/10.2.0/db_1/dbs/arch1_59_759630389.dbf
ORA-00280: change 325588 for thread 1 is in sequence #59
00:46:23 Specify log: {=suggested | filename | AUTO | CANCEL}
/u01/app/oracle/oradata/test/redo02a.log
Log applied.
Media recovery complete.
00:46:30 SQL> alter database open resetlogs;
Database altered.
00:46:59 SQL> select * from scott.test;
ID
----------
1
2
3
4
5
6
7
9
10
11
10 rows selected.