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  • Oracle删除控制文件恢复

    控制文件被删除后,系统崩溃,下面介绍下如何恢复控制文件

    SQL> conn / as sysdba
    Connected to an idle instance.
    SQL> startup nomount;
    ORA-27102: out of memory
    Linux Error: 12: Cannot allocate memory
    SQL> startup nomount pfile='/u01/app/oracle/product/10.2.0/db_1/dbs/initorcl.ora'
    ORACLE instance started.

    Total System Global Area 402653184 bytes
    Fixed Size 1219688 bytes
    Variable Size 209716120 bytes
    Database Buffers 188743680 bytes
    Redo Buffers 2973696 bytes

    SQL> alter database mount;
    alter database mount
    *
    ERROR at line 1:
    ORA-00205: error in identifying control file, check alert log for more info


    SQL> CREATE CONTROLFILE REUSE DATABASE "ORCL" NORESETLOGS NOARCHIVELOG
    2 MAXLOGFILES 16
    3 MAXLOGMEMBERS 3
    4 MAXDATAFILES 100
    5 MAXINSTANCES 8
    6 MAXLOGHISTORY 292
    7 LOGFILE
    8 GROUP 1 '/u01/app/oracle/oradata/orcl/redo01.log' SIZE 50M,
    9 GROUP 2 '/u01/app/oracle/oradata/orcl/redo02.log' SIZE 50M,
    10 GROUP 3 '/u01/app/oracle/oradata/orcl/redo03.log' SIZE 50M
    11 -- STANDBY LOGFILE
    12 DATAFILE
    13 '/u01/app/oracle/oradata/orcl/system01.dbf',
    14 '/u01/app/oracle/oradata/orcl/undotbs01.dbf',
    15 '/u01/app/oracle/oradata/orcl/sysaux01.dbf',
    16 '/u01/app/oracle/oradata/orcl/users01.dbf',
    17 '/u01/app/oracle/oradata/orcl/example01.dbf',
    18 '/u01/app/oracle/oradata/orcl/perfstat.dbf'
    19 CHARACTER SET ZHS16GBK
    20 ;

    Control file created.

    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/orcl/system01.dbf'


    SQL> recover database;
    Media recovery complete.
    SQL> alter database open;

    Database altered.

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  • 原文地址:https://www.cnblogs.com/staryea/p/8520436.html
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