脚本恢复数据库控制文件
| STARTUP NOMOUNT CREATE CONTROLFILE REUSE DATABASE "VDEDU" NORESETLOGS ARCHIVELOG MAXLOGFILES 16 MAXLOGMEMBERS 3 MAXDATAFILES 100 MAXINSTANCES 8 MAXLOGHISTORY 292 LOGFILE GROUP 1 '/u01/app/oracle/oradata/VDEDU/redo01.log' SIZE 50M BLOCKSIZE 512, GROUP 2 '/u01/app/oracle/oradata/VDEDU/redo02.log' SIZE 50M BLOCKSIZE 512, GROUP 3 '/u01/app/oracle/oradata/VDEDU/redo03.log' SIZE 50M BLOCKSIZE 512 -- STANDBY LOGFILE DATAFILE '/u01/app/oracle/oradata/VDEDU/system01.dbf', '/u01/app/oracle/oradata/VDEDU/sysaux01.dbf', '/u01/app/oracle/oradata/VDEDU/undotbs01.dbf', '/u01/app/oracle/oradata/VDEDU/users01.dbf', '/u01/app/oracle/oradata/VDEDU/example01.dbf' CHARACTER SET AL32UTF8 ;
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| STARTUP NOMOUNT CREATE CONTROLFILE REUSE DATABASE "VDEDU" RESETLOGS ARCHIVELOG MAXLOGFILES 16 MAXLOGMEMBERS 3 MAXDATAFILES 100 MAXINSTANCES 8 MAXLOGHISTORY 292 LOGFILE GROUP 1 '/u01/app/oracle/oradata/VDEDU/redo01.log' SIZE 50M BLOCKSIZE 512, GROUP 2 '/u01/app/oracle/oradata/VDEDU/redo02.log' SIZE 50M BLOCKSIZE 512, GROUP 3 '/u01/app/oracle/oradata/VDEDU/redo03.log' SIZE 50M BLOCKSIZE 512 -- STANDBY LOGFILE DATAFILE '/u01/app/oracle/oradata/VDEDU/system01.dbf', '/u01/app/oracle/oradata/VDEDU/sysaux01.dbf', '/u01/app/oracle/oradata/VDEDU/undotbs01.dbf', '/u01/app/oracle/oradata/VDEDU/users01.dbf', '/u01/app/oracle/oradata/VDEDU/example01.dbf' CHARACTER SET AL32UTF8 ;
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使用noresetlogs仅是当前所有的online logs可用时。
使用resetlogs，将导致online logs里的内容丢失，并且所有的备份失效，仅当online logs损坏的情况下，才使用resetlos模式。
SQL> alter database backup controlfile to trace;
Database altered.
SQL> oradebug setmypid
Statement processed.
SQL> oradebug tracefile_name
/u01/app/oracle/diag/rdbms/vdedu/VDEDU/trace/VDEDU_ora_10040.trc
oradebug setmypid --跟踪当前会话
oradebug tracefile_name --查看trace文件名及位置
[oracle@lyo1 ~]$ cat /u01/app/oracle/diag/rdbms/vdedu/VDEDU/trace/VDEDU_ora_10040.trc > createcontrol.txt
[oracle@lyo1 ~]$ vi createcontrol.txt
删除控制文件
[oracle@lyo1 ~]$ rm -rf /u01/app/oracle/oradata/VDEDU/control01.ctl
[oracle@lyo1 ~]$ rm -rf /u01/app/oracle/fast_recovery_area/VDEDU/control02.ctl
SQL> shutdown abort
ORACLE instance shut down.
SQL> startup
ORACLE instance started.
Total System Global Area 1503199232 bytes
Fixed Size 2253424 bytes
Variable Size 922750352 bytes
Database Buffers 570425344 bytes
Redo Buffers 7770112 bytes
ORA-00205: error in identifying control file, check alert log for more info
SQL> shutdown abort
ORACLE instance shut down.
SQL> quit
利用脚本重做控制文件，需重做两次
SQL> @1.sql
ORACLE instance started.
Total System Global Area 1503199232 bytes
Fixed Size 2253424 bytes
Variable Size 922750352 bytes
Database Buffers 570425344 bytes
Redo Buffers 7770112 bytes
Control file created.
恢复数据库
SQL> RECOVER DATABASE;
Media recovery complete.
启用归档模式
SQL> ALTER SYSTEM ARCHIVE LOG ALL;
System altered.
打开数据库
SQL> alter database open;
Database altered.
利用resetlogs脚本重做
[oracle@oracle ~]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.4.0 Production on Mon Jul 9 19:17:30 2018
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to an idle instance.
SQL> @2.sql
ORACLE instance started.
Total System Global Area 839282688 bytes
Fixed Size 2257880 bytes
Variable Size 545262632 bytes
Database Buffers 289406976 bytes
Redo Buffers 2355200 bytes
Control file created.
SQL> quit
SQL> RECOVER DATABASE USING BACKUP CONTROLFILE;
ORA-00279: change 1111159 generated at 07/09/2018 19:13:58 needed for thread 1
ORA-00289: suggestion :
/u01/app/oracle/fast_recovery_area/KINGSQL/archivelog/2018_07_09/o1_mf_1_11_%u_.
arc
ORA-00280: change 1111159 for thread 1 is in sequence #11
Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
/u01/app/oracle/oradata/kingsql/redo01.log
ORA-00310: archived log contains sequence 10; sequence 11 required
ORA-00334: archived log: '/u01/app/oracle/oradata/kingsql/redo01.log'
SQL> RECOVER DATABASE USING BACKUP CONTROLFILE;
ORA-00279: change 1111159 generated at 07/09/2018 19:13:58 needed for thread 1
ORA-00289: suggestion :
/u01/app/oracle/fast_recovery_area/KINGSQL/archivelog/2018_07_09/o1_mf_1_11_%u_.
arc
ORA-00280: change 1111159 for thread 1 is in sequence #11
Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
/u01/app/oracle/oradata/kingsql/redo02.log
Log applied.
Media recovery complete.
SQL> alter database open resetlogs;
Database altered.