Australia and New Zealand · Public discussion

how things happen in a commit process to redo log files

Started by obakesan · · Last activity · 2 posts · 1,811 views

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Australia and New Zealand
Published
16 May 2008
Last activity
16 May 2008
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obakesan
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  1. Original post
    obakesan
    Archived post
    #1

    Hi

    as I understand things when a change occurs something writes the change
    from the database buffer cache to the redo log buffer. Then upon commit (I
    suppose its) LGWR copies these changes from the redo log buffer into the redo
    log files. But does it also write the rollback segment relevant to the
    transaction too?

    If so, I'm not sure I see why it might be needed?

    thanks

    See Ya
    (when bandwidth gets better ;-)

    Chris Eastwood
    Photographer, Programmer Motorcyclist and dingbat
    blog: http://cjeastwd.blogspot.com/

    please remove undies for reply

    Report
  2. obakesan
    Archived post
    #2

    whoops

    wrong place

    sorry folks

    See Ya
    (when bandwidth gets better ;-)

    Chris Eastwood
    Photographer, Programmer Motorcyclist and dingbat
    blog: http://cjeastwd.blogspot.com/

    please remove undies for reply

    Report

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