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  • 052-216(新增70题2018)

    One of the redo log members in your database is lost. You queried V$logfile for further details.

    What would be the member's status?

    A. LOST

    B. INVALID

    C. EXPIRED

    D. DELETED

    E. CORRUPT

    F. UNKNOWN

    G. OBSOLETE

    Answer: B

    实验

    1.删除group 2中唯一的redo log,数据库无法启动,清除日志,数据库启动成功,这时无法查看到V$logfile

    2.给group 2加入一个新的日志文件,ALTER SYSTEM SWITCH LOGFILE,删除新日志文件,重启,查看V$logfile,变为INVALID
    alter database clear logfile group 2 之后又重新上线

    V$LOGFILE

    Status of the log member:

    • INVALID - File is inaccessible

    • STALE - File's contents are incomplete

    • DELETED - File is no longer used

    • null - File is in use
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  • 原文地址:https://www.cnblogs.com/Babylon/p/8609457.html
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