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  1. #1
    Join Date
    Jan 2005
    Posts
    4

    Unanswered: The concept of log buffer

    The concept of log buffer
    Here is the interpretation of "log buffer":
    Log buffer : Memory containing before and after image copies of
    changed data to be written to the redo logs

    How could i understand the statement,especially the "before and after image copies of changed data" ?

  2. #2
    Join Date
    Nov 2002
    Posts
    833
    you may find this link helpful

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    http://www.dba-village.com/village/d...s?PaperIdA=747

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