zoukankan      html  css  js  c++  java
  • 053386

    You have just performed a FLASHBACK TABLE operation using the following command:
    flashback table employees to scn 123456;
    The employees table has triggers associated with it. Which of the following statements is true regarding the state of the triggers during the Flashback Table operation?
    A. All the triggers are disabled.
    B. All the triggers are enabled by default.
    C. Enabled triggers remain enabled and disabled triggers remain disabled.
    D. Triggers are deleted when a Flashback Table operation is performed.

      The default action for the FLASHBACK TABLE command is to disable all triggers regardless of their previous state.If the ENABLE TRIGGER clause is added to the FALSHBACK TABLE command,then triggers that were previously enabled will be reenabled after the operation completes.

  • 相关阅读:
    4、2 核心组件
    promise
    Content-Type
    $routeProvider
    广告
    $apply() $digest()
    异常
    switch
    autoprefixer
    $resource
  • 原文地址:https://www.cnblogs.com/Babylon/p/7826711.html
Copyright © 2011-2022 走看看