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Thread: Components of Physical Databse Structure

  1. #1
    Contributing Member
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    May 2006
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    64

    Components of Physical Databse Structure

    In Oracle Database, what are the components of its physical database structure?


  2. #2
    Expert Member
    Join Date
    Sep 2005
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    206

    Re: Components of Physical Databse Structure

    There are 6 files(components) of physical database structure.

    Out of 6, 3 are mandatory and the other 3 are optional.

    Three mandatory files are :

    1. Data file : store actual data
    2. Control file : strores stuctural & status information of database.
    3. Redolog file : stores changed/committed data

    Three optional files are :

    4. Parameter file : strores all size related parameters note : this file is mandatory whne you create a database for the first titme , then it is optional.

    5 . Archivelog file : its offline copy of redolog

    6. Password file : used to make normal user to behave as a super user.

    Hope this helps....

    Thanks,
    Suji


  3. #3
    Contributing Member
    Join Date
    May 2006
    Answers
    82

    Re: Components of Physical Databse Structure

    This topic is interesting but could you let me know what the difference between Redolog file and Archivelog file is. I assume that both have copy of the same data. Is that there is any difference in the storage structure


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