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Thread: Unable to drop a datafile.

  1. #1
    Join Date
    Mar 2010
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    Red face Unable to drop a datafile.

    i'm unable to drop a datafile from a tablespace.

    SQL> Alter databse drop datafile '/opt/oracle/oradata/ARM/Sample.dbf';

    I get the below error:

    ORA-01900 : logfile keyword expected.

    Let me know what has to be followed?

  2. #2
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    there is no drop datafile command - you cannot do that

  3. #3
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    Mar 2010
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    Thanks friend..

    But if i require to drop the datafile means what has to be done..

    I heard that we have option to drop datafile in 9i and above. Not sure b4 9i.

    Please correct me if i'm wrong...

  4. #4
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    You are wrong in regards to 9i reference.
    If you are on 10g investigate alter tablespace drop datafile, double-check restrictions.
    During normal operation there is no reason to drop a datafile.
    Pablo (Paul) Berzukov

    Author of Understanding Database Administration available at amazon and other bookstores.

    Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.

  5. #5
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    Thanks PAVB for updating me.

    I'm using oracle 9i version 2. So now i need to drop a datafile which has no data in it. Also the datafile is in offline status right now. is there any possible way to drop the datafile or we dont have any such option to drop..?

    Pls clarify and correct if i'm wrong.

  6. #6
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    Quote Originally Posted by Aravindan.2005 View Post
    i need to drop a datafile which has no data in it
    How do you know?
    Pablo (Paul) Berzukov

    Author of Understanding Database Administration available at amazon and other bookstores.

    Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.

  7. #7
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    Jst now i created a datafile and once created I made it offline.

    FYI.. I'm using test database. Not a production DB.

  8. #8
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    Quote Originally Posted by Aravindan.2005 View Post
    Jst now i created a datafile and once created I made it offline.

    FYI.. I'm using test database. Not a production DB.
    you can't do that

    you cannot get rid of a datafile once you have created it

  9. #9
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    mmhhh... either way, as already stated drop datafile functionality was introduced on Ora10gR2.
    Check Metalink Note #111316.1
    Pablo (Paul) Berzukov

    Author of Understanding Database Administration available at amazon and other bookstores.

    Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.

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