Oracle Event
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  1. #1
    Join Date
    Dec 2001
    Posts
    203

    Oracle Event

    Hi,

    What does 'db_file_sequential_read' and 'db_file_scattered_read' mean?

    I am interested with practical approach rather than theory definition.
    Regards
    Last edited by sumit; 04-10-2003 at 05:07 AM.
    sumit

  2. #2
    Join Date
    Nov 2002
    Location
    New Delhi, INDIA
    Posts
    1,796

    Re: Oracle Event

    Originally posted by sumit
    Hi,

    What does 'db_file_sequential_read' and 'db_file_scattered_read' mean?

    I am interested with practical approach rather than theory definition.
    Regards
    db file sequential read: Single block read commonly seen for index block access or table block access by a rowid

    db file scattered read: Typically used for full table scan. Multiple blocks are read into the DB block buffer that are scattered throughout the memory.
    Amar
    "There is a difference between knowing the path and walking the path."

    Amar's Blog  Get Firefox!

  3. #3
    Join Date
    Jun 2000
    Location
    Madrid, Spain
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    7,447
    RTFM, STFW

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