cp +DATA/ora11g/backup/control01.ctl +DATA/ora11g/controlfile/control01.ctl
alter system set control_files='+DATA/ora11g/controlfile/control01.ctl' scope=spfile;
shutdown immediate
startup mount
select group#,status from v$log;
select group#,member from v$logfile;
select group#,thread#,sequence# from v$archive;
recover database using backup controlfile until cancel;
alter database open resetlogs;
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示例
alter database backup controlfile to '+DATA/ora11g/backup/control01.ctl';
alter database backup controlfile to trace;
alter database backup controlfile to trace as ‘/u02/app/trace123.trc’;
[oracle@pc2 trace]$ pwd
/u02/app/diag/rdbms/ora11g/ora11g/trace
[oracle@pc2 trace]$ ls -tl 檢視時間最近的trace檔案(ora11g_ora_*.trc)，其中有建立控制檔案的全部命令
total 968
-rw-r----- 1 oracle asmadmin 20320 Dec 19 10:31 ora11g_mmon_3942.trc
-rw-r----- 1 oracle asmadmin 2198 Dec 19 10:31 ora11g_mmon_3942.trm
-rw-r----- 1 oracle asmadmin 48189 Dec 19 10:18 alert_ora11g.log
-rw-r----- 1 oracle asmadmin 6959 Dec 19 10:18 ora11g_ora_31212.trc
-rw-r----- 1 oracle asmadmin 194 Dec 19 10:18 ora11g_ora_31212.trm
SYS@ora11g>startup
ORACLE instance started.
Total System Global Area 830930944 bytes
Fixed Size 2231048 bytes
Variable Size 629146872 bytes
Database Buffers 192937984 bytes
Redo Buffers 6615040 bytes
ORA-00205: error in identifying control file, check alert log for more info
cp +DATA/ora11g/backup/control01.ctl +DATA/ora11g/controlfile/control01.ctl
alter system set control_files='+DATA/ora11g/controlfile/control01.ctl' scope=spfile;
SYS@ora11g>alter database mount;
ERROR at line 1:
ORA-00205: error in identifying control file, check alert log for more info
SYS@ora11g>shutdown immediate
ORA-01507: database not mounted
ORACLE instance shut down.
SYS@ora11g>startup mount
ORACLE instance started.
Total System Global Area 830930944 bytes
Fixed Size 2231048 bytes
Variable Size 629146872 bytes
Database Buffers 192937984 bytes
Redo Buffers 6615040 bytes
Database mounted.
SYS@ora11g>select group#,status from v$log;
GROUP# STATUS
---------- ----------------
1 INACTIVE
3 INACTIVE
2 CURRENT
SYS@ora11g>select group#,member from v$logfile;
GROUP# MEMBER
---------- --------------------------------------------------
3 +DATA/ora11g/onlinelog/group_3.266.833721683
3 +DATA/ora11g/onlinelog/group_3.267.833721685
2 +DATA/ora11g/onlinelog/group_2.264.833721681
2 +DATA/ora11g/onlinelog/group_2.265.833721683
1 +DATA/ora11g/onlinelog/group_1.262.833721677
1 +DATA/ora11g/onlinelog/group_1.263.833721679
SYS@ora11g>select group#,thread#,sequence# from v$archive;
SYS@ora11g>recover database using backup controlfile until cancel;
ORA-00279: change 1104788 generated at 12/11/2013 13:27:34 needed for thread 1
ORA-00289: suggestion : +DATA
ORA-00280: change 1104788 for thread 1 is in sequence #8
Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
+DATA/ora11g/onlinelog/group_2.264.833721681
Log applied.
Media recovery complete.
SYS@ora11g>recover database using backup controlfile until cancel;
ORA-00279: change 1105381 generated at 12/19/2013 11:07:09 needed for thread 1
ORA-00289: suggestion : +DATA
ORA-00280: change 1105381 for thread 1 is in sequence #8
Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
+DATA/ora11g/onlinelog/group_2.265.833721683
Log applied.
Media recovery complete.
SYS@ora11g>alter database open resetlogs;
Database altered.