Recover disk space from tablespaces
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Thread: Recover disk space from tablespaces

  1. #1
    Join Date
    Feb 2009
    Posts
    3

    Recover disk space from tablespaces

    I'm using an 11g database and running out of disk space. How can I determine how much free spaces are in my USERS and UNDO tablespaces? And how can I free these spaces? Thanks for your help.

  2. #2
    Join Date
    Sep 2002
    Location
    England
    Posts
    7,333
    look at dba_free_space

  3. #3
    Join Date
    Feb 2009
    Posts
    3

    Recover disk space from tablespaces

    I ran the following:

    select sum(bytes)/1024/1024/1024,tablespace_name from dba_free_space
    where tablespace_name IN ('UNDOTBS1', 'USERS') group by tablespace_name;

    SUM(BYTES)/1024/1024/1024 TABLESPACE_NAME
    ------------------------- ------------------------------
    0.5606689453125 UNDOTBS1
    3.44195556640625 USERS

    How do I actually recover the indicated free space?

    Thanks in advance.

  4. #4
    Join Date
    Sep 2002
    Location
    England
    Posts
    7,333
    resize the datafiles

  5. #5
    Join Date
    Feb 2009
    Posts
    3
    Yes. I found some docs on resizing datafiles.

    Thanks for the lead.

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