zoukankan      html  css  js  c++  java
  • 052-219(新增70题2018)

    You are working on a 24x7 (available 24 hours per day, 7 days per week) production database. An operating system (OS) user deletes the alert log file accidentally.

    Which statement in this scenario is true?

    A. The database crashes.

    B. The DBA needs to re-create the file.

    C. The file gets re-created automatically.

    D. The file gets restored automatically from the last backup.

    E. The DBA needs to perform a complete database recovery.

    F. The DBA needs to perform an incomplete database recovery.

    Answer: C

    实验:

    SQL> show parameter background_dump_dest;
    NAME                                 TYPE        VALUE
    ------------------------------------ ----------- ------------------------------
    background_dump_dest                 string      /home/oracle/app/oracle/diag/rdbms/orcl/orcl/trace
    --进入目录删除alert_orcl.log
    alter tablespace test1 offline;
    alter tablespace test1 online;
    --alert_orcl.log自动生成了
    
    Tue Mar 20 02:15:07 2018
    alter tablespace test1 offline
    Completed: alter tablespace test1 offline
    alter tablespace test1 online
    Completed: alter tablespace test1 online
  • 相关阅读:
    iOS--------cocoapods遇到的问题
    NTFS
    交换机配置telnet
    交换机
    华为模拟器配置telnet
    路由器
    OSI模型
    网络拓扑
    为什么CAS加锁是线程安全的?--理解原子操作
    零基础自学编程选哪种语言好?世上最好编程语言推荐
  • 原文地址:https://www.cnblogs.com/Babylon/p/8610731.html
Copyright © 2011-2022 走看看