Which method would you use to undo the changes made by a particular transaction without affecting the changes made by other transactions?()A. point-in-time recoveryB. execute the ROLLBACK command with transaction numberC. flashback the database to before

题目
Which method would you use to undo the changes made by a particular transaction without affecting the changes made by other transactions?()

A. point-in-time recovery

B. execute the ROLLBACK command with transaction number

C. flashback the database to before the transaction was committed

D. determine all the necessary undo SQL statements from FLASHBACK_TRANSACTION_QUERY and use them for recovery

相似考题

1.She _ the doctor a list of the medical items she needed.A.made … write outB.makes … writes outC.made … wroteD.had made … written

2.A decision must be ______immediately _______stop the factory ______waste water without being treated.A. made, to, pouringB. made,不填, to pourC. done,不填, pouringD. had, to, to pour

3.Most of the environmental problems are man-made.()

4.15．A．askedB．letC．made

更多“Which method would you use to undo the changes made by a particular transaction without affecting the changes made by other transactions?() ”相关问题

  • 第1题：

    Reducing the gap between rich and poor is one of the main _______ facing the government.

    A、chances

    B、challenges

    C、chains

    D、changes


    参考答案：B

  • 第2题：

    The process of choosing names______ widely from culture to culture．

    A．shifts

    B．varies

    C．differs

    D．changes


    正确答案：B
    vary from“变化”；shift from“来回移动”；differ from“与……不同”；change from为“从……变成……”。

  • 第3题：

    The price of food fluctuates according to the weather.

    A:jumps
    B:rises
    C:falls
    D:changes

    答案：D
    解析：
    fluctuate：波动，涨落。题干意思为：食品价格因天气而波动。jump：跳跃，暴涨; rise：上升；fall：降落；change：变化，变动。经过比较，只有change与题干中fluctuate意思相近，应选择D。

  • 第4题：

    I ()supper when I()someone knocking at the door.

    A、made . . . Heard

    B、made . . .was heard

    C、was making . . . was hearing

    D、was making . . . heard


    正确答案:D

  • 第5题：

    The price of vegetables varies according to the weather.

    A:jump
    B:rises
    C:falls
    D:changes

    答案：D
    解析：
    本句话的意思是：“蔬菜价格随天气变化而不同。”vary：变化、使不同。 jump：跳、跃。rise和fall是反义词，分别表示上升和下降，例如：The tides rise and fall with seasons．潮水随着季节不同时涨时落。change：改变、变化，例如：If you want to change your doctor there are two ways of doing it．你要是想换个医生，办法有两个。

  • 第6题：

    The price of vegetables varies according to the weather.

    A: jumps
    B: rises
    C: falls
    D: changes

    答案：D
    解析：
    句意为：蔬菜的价格随季节变化而变化。vary意为“变化，有所不同”，与change意思相同。因此选D项。

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