场景描述：控制文件损坏（控制文件内容没有变化）
1.备份
1 SQL> alter database backup controlfile to trace as '/u01/admin/sun/udump/c.trc'; 2 3 Database altered. 4 5 SQL>
2.删除备份文件
1 -bash-3.00$ ls -l 2 total 2183024 3 -rw-r----- 1 oracle oinstall 7061504 Jan 23 03:12 control01.ctl 4 -rw-r----- 1 oracle oinstall 7061504 Jan 23 03:12 control02.ctl 5 -rw-r----- 1 oracle oinstall 7061504 Jan 23 03:12 control03.ctl 6 -rw-r----- 1 oracle oinstall 104865792 Jan 23 03:01 example01.dbf 7 -rw-r----- 1 oracle oinstall 52429312 Jan 23 03:01 redo01.log 8 -rw-r----- 1 oracle oinstall 52429312 Jan 23 03:11 redo02.log 9 -rw-r----- 1 oracle oinstall 52429312 Jan 23 03:01 redo03.log 10 -rw-r----- 1 oracle oinstall 10493952 Jan 23 03:01 sun01_1.dbf 11 -rw-r----- 1 oracle oinstall 10493952 Jan 23 03:01 sun02_1.dbf 12 -rw-r----- 1 oracle oinstall 251666432 Jan 23 03:07 sysaux01.dbf 13 -rw-r----- 1 oracle oinstall 503324672 Jan 23 03:10 system01.dbf 14 -rw-r----- 1 oracle oinstall 20979712 Jan 22 23:24 temp01.dbf 15 -rw-r----- 1 oracle oinstall 31465472 Jan 23 03:10 undotbs01.dbf 16 -rw-r----- 1 oracle oinstall 5251072 Jan 23 03:01 users01.dbf 17 -bash-3.00$ rm -f control01.* 18 -bash-3.00$
3.关机
1 SQL> shutdown abort 2 ORACLE instance shut down. 3 SQL>
4.更改备份的控制文件
1 -bash-3.00$ pwd 2 /u01/admin/sun/udump 3 -bash-3.00$ cp c.trc c.sql 4 6 将注释和多余的信息从控制文件中删除 7 -bash-3.00$ vi c.sql 8 9 STARTUP NOMOUNT 10 CREATE CONTROLFILE REUSE DATABASE "SUN" NORESETLOGS ARCHIVELOG 11 MAXLOGFILES 16 12 MAXLOGMEMBERS 3 13 MAXDATAFILES 100 14 MAXINSTANCES 8 15 MAXLOGHISTORY 292 16 LOGFILE 17 GROUP 1 '/u01/oradata/sunbak/redo01.log' SIZE 50M, 18 GROUP 2 '/u01/oradata/sunbak/redo02.log' SIZE 50M, 19 GROUP 3 '/u01/oradata/sunbak/redo03.log' SIZE 50M 20 DATAFILE 21 '/u01/oradata/sunbak/system01.dbf', 22 '/u01/oradata/sunbak/undotbs01.dbf', 23 '/u01/oradata/sunbak/sysaux01.dbf', 24 '/u01/oradata/sunbak/users01.dbf', 25 '/u01/oradata/sunbak/example01.dbf', 26 '/u01/oradata/sunbak/sun01_1.dbf', 27 '/u01/oradata/sunbak/sun02_1.dbf' 28 CHARACTER SET AL32UTF8 29 ; 30 31 RECOVER DATABASE 32 33 ALTER SYSTEM ARCHIVE LOG ALL; 34 35 ALTER DATABASE OPEN; 36 37 ALTER TABLESPACE TEMP ADD TEMPFILE '/u01/oradata/sunbak/temp01.dbf' 38 SIZE 20971520 REUSE AUTOEXTEND ON NEXT 655360 MAXSIZE 32767M; 39 -- 40 -bash-3.00$
5.利用c.sql生成控制文件
1 -bash-3.00$ sqlplus /nolog 2 3 SQL*Plus: Release 10.2.0.2.0 - Production on Wed Jan 23 03:56:32 2013 4 5 Copyright (c) 1982, 2005, Oracle. All Rights Reserved. 6 SQL> conn /as sysdba 7 Connected to an idle instance. 8 SQL> @/u01/admin/sun/udump/c.sql 9 ORACLE instance started. 10 11 Total System Global Area 289406976 bytes 12 Fixed Size 1279820 bytes 13 Variable Size 92276916 bytes 14 Database Buffers 192937984 bytes 15 Redo Buffers 2912256 bytes 16 17 Control file created. 18 19 Media recovery complete. 20 21 System altered. 22 23 Database altered. 24 25 Tablespace altered. 26 27 SQL>