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    热备份

    alter tablespace users begin backup;  

    cp +DATA/ora11g/USERS.259.833721555 +DATA/ora11g/backup/users.dbf

    alter tablespace users end backup;

    -----------------------------------------------------------------------------

    col name for a21

    select b.file#,d.name,b.status,b.time from v$datafile d join v$backup b on d.file#=b.file#;

    SYS@ora11g>desc v$backup  (displays the backup status of all online datafiles.)

     Name                                      Null?    Type

     ----------------------------------------- -------- ----------------------------

     FILE#                                              NUMBER

     STATUS                                             VARCHAR2(18)

     CHANGE#                                            NUMBER

     TIME                                               DATE

    FILE#      NUMBER      File identifier

    STATUS  VARCHAR2(18)    File status: NOT ACTIVE,ACTIVE (backup in progress),OFFLINE NORMAL, or description of an error.

    NOT ACTIVE indicates that the file is not currently in backup mode (that is, an ALTER TABLESPACE ... BEGIN BACKUP or ALTER DATABASE BEGIN BACKUP statement has not been issued), whereas ACTIVE indicates that the file is currently in backup mode.

    CHANGE#     NUMBER      System change number when backup started

    TIME      DATE      Time the backup started

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  • 原文地址:https://www.cnblogs.com/wwxbi/p/4216785.html
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