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  • Oracle基础 04 归档日志 archivelog

    --查看归档模式
    archive log list

    select log_mode from v$database;


    --修改为归档模式(mount下)
    alter database archivelog


    --修改为非归档模式(mount下)
    alter database noarchivelog


    --切换日志三个相关命令
    SQL> alter system switch logfile;
    SQL> alter system archive log current;
    SQL> alter system checkpoint;


    --修改recovey目录
    show parameter db_recover
    alter system set db_recovery_file_dest='/u01/app/oracle/arch' scope=both;
    alter system set db_recovery_file_dest_size=2g;


    --v$recovery_file_dest
    SYS@ test11g> col name for a20
    SYS@ test11g> select * from v$recovery_file_dest;

    NAME                 SPACE_LIMIT SPACE_USED SPACE_RECLAIMABLE NUMBER_OF_FILES
    -------------------- ----------- ---------- ----------------- ---------------
    /u01/app/oracle/flas  4039114752  344297472         343966720               8
    h_recovery_area


    --检查一下flash recovery area的使用情况:
    SYS@ test11g> set linesize 100
    SYS@ test11g> select * from v$flash_recovery_area_usage;

    FILE_TYPE            PERCENT_SPACE_USED PERCENT_SPACE_RECLAIMABLE NUMBER_OF_FILES
    -------------------- ------------------ ------------------------- ---------------
    CONTROL FILE                          0                         0               0
    REDO LOG                              0                         0               0
    ARCHIVED LOG                       4.26                      4.26               6
    BACKUP PIECE                       4.26                      4.25               2
    IMAGE COPY                            0                         0               0
    FLASHBACK LOG                         0                         0               0
    FOREIGN ARCHIVED LOG                  0                         0               0

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  • 原文地址:https://www.cnblogs.com/john2017/p/6364439.html
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