重建控制文件

wonderful1010@1

1、在库完好的时候先备份一下controlfile以备不时之需
SQL>[color="#0000ff"]alter database backup controlfile to trace;
SQL>[color="#0000ff"]exit;
$[color="#0000ff"]cd $ORACLE_BASE/admin/$ORACLE_SID/udump
$[color="#0000ff"]ls -ltrh | tail -1
-rw-r----- 1
[color="#0000ff"]oracle
oinstall 8.4K Nov 26 18:49 wending_ora_10819.trc
找最新的那个trace文件，里头即有重建controlfile的语句。
这里先记着，看一下
[color="#0000ff"]sql
就知道咋回事了。注意：RMAN的设置将回到默认值。
1、重建controlfile
注意：如果日志文件也坏了，那么把下面语句中的[color="#ff0000"]NORESETLOGS换成[color="#ff0000"]RESETLOGS。
SQL>[color="#0000ff"]STARTUP NOMOUNT
SQL>[color="#0000ff"]CREATE CONTROLFILE REUSE DATABASE "WENDING"[color="#0000ff"]NORESETLOGSFORCE LOGGING ARCHIVELOG
    MAXLOGFILES 16
    MAXLOGMEMBERS 5
    MAXDATAFILES 100
    MAXINSTANCES 8
    MAXLOGHISTORY 292
LOGFILE
GROUP 1 (
    '/orahome/oradata/WENDING/redo011.log',
    '/u01/oradata/WENDING/redo012.log'
) SIZE 100M,
GROUP 2 (
    '/orahome/oradata/WENDING/redo021.log',
    '/u01/oradata/WENDING/redo022.log'
) SIZE 100M,
GROUP 3 (
    '/orahome/oradata/WENDING/redo031.log',
    '/u01/oradata/WENDING/redo032.log'
) SIZE 100M,
GROUP 4 (
    '/orahome/oradata/WENDING/redo041.log',
    '/u01/oradata/WENDING/redo042.log'
) SIZE 100M,
GROUP 5 (
    '/orahome/oradata/WENDING/redo051.log',
    '/u01/oradata/WENDING/redo052.log'
) SIZE 100M,
GROUP 6 (
    '/orahome/oradata/WENDING/redo061.log',
    '/u01/oradata/WENDING/redo062.log'
) SIZE 100M
-- STANDBY LOGFILE
DATAFILE
'/orahome/oradata/WENDING/system01.dbf',
'/orahome/oradata/WENDING/undotbs01.dbf',
'/orahome/oradata/WENDING/sysaux01.dbf',
'/orahome/oradata/WENDING/users01.dbf',
'/u01/oradata/WENDING/wending_user01.dbf',
'/u01/oradata/WENDING/wending_log01.dbf',
'/u01/oradata/WENDING/wending_index01.dbf'
CHARACTER SET ZHS16GBK;
2、打开数据库，两种情况
2.1、redologs都完好，那么NORESETLOGS方式打开数据库
SQL>[color="#0000ff"]RECOVER DATABASE
SQL>[color="#0000ff"]ALTER SYSTEM ARCHIVE LOG ALL;
SQL>[color="#0000ff"]ALTER DATABASE OPEN;
2.2、redologs也损坏了，那么RESETLOGS方式打开数据库
SQL>[color="#0000ff"]RECOVER DATABASE USING BACKUP CONTROLFILE
SQL>[color="#0000ff"]ALTER DATABASE OPEN RESETLOGS;
3、最后重建临时表空间
SQL>[color="#0000ff"]ALTER TABLESPACE TEMP ADD TEMPFILE '/orahome/oradata/WENDING/temp01.dbf'
     SIZE 1024M REUSE AUTOEXTEND ON NEXT 10485760 MAXSIZE 32767M;
               
               
               

本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u2/79444/showart_1905531.html