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  • OCP-1Z0-053-V12.02-535题

    535.To reference existing ASM files, you need to use a fully qualified ASM filename. Your development

    database has a disk group named DG2A, the database name is DEV19, and the ASM file that you want to

    reference is a datafile for the USERS02 tablespace.

    Which of the following is a valid ASM filename for this ASM file?

    A. dev19/+DG2A/datafile/users02.701.2

    B. +DG2A/dev19/datafile/users02.701.2

    C. +DG2A/dev19/users02/datafile.701.2

    D. +DG2A.701.2

    E. +DG2A/datafile/dev19.users.02.701.2

    Answer: B

    答案解析:

    参考:http://blog.csdn.net/rlhua/article/details/12972983



    生成格式为:+diskgroup/dbname/file_type/file_type_tag.file.incarnation ,
     +diskgroup :磁盘组名称;  
     dbname :数据库的DB_UNIQUE_NAME参数值;   
     file_type :创建的文件类型,比如CONTROLFILE/DATAFILE/ONLINELOG/ARCHIVELOG/TEMPFILE/BACKUPSET/FLASHBAC
    K等等;   
    •  file_type_tag  :文件类型的标签,比如表空间对应的通常为该表空间名称;   
    •   file.incarnation  :文件序号+incarnation,用来确保文件的唯一; 
     

    sys@TEST0924> alter tablespace INVENTORY add datafile '+DATA';

    Tablespace altered.

    ASMCMD> pwd
    +data/test0924/datafile
    ASMCMD> ls
    INVENTORY.266.829658135

    sys@TEST0924> alter tablespace INVENTORY add datafile '+DATA/test0924/datafile/inventory03.dbf' SIZE 10m;

    Tablespace altered.

     ASMCMD> ls
    INVENTORY.264.829668701
    INVENTORY.266.829658135
    inventory03.dbf

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  • 原文地址:https://www.cnblogs.com/hzcya1995/p/13316783.html
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