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Thread: DBMS_Stats

  1. #1
    Join Date
    Feb 2009
    Posts
    49

    DBMS_Stats

    Hi,
    Can any one please tell me how we can know the estimated time for a stats gathering job.

    Assume if table size is 1 GB, then how long it will take..?

    Any specific views are there to find the totale time..?

    Regards,
    mas

  2. #2
    Join Date
    Mar 2006
    Location
    Charlotte, NC
    Posts
    865
    you can check time_remaining column in v$session_longops view.

    Thanks,
    Vijay Tummala

    Try hard to get what you like OR you will be forced to like what you get.

  3. #3
    Join Date
    Mar 2007
    Location
    Ft. Lauderdale, FL
    Posts
    3,554
    Quote Originally Posted by tmgsam View Post
    Assume if table size is 1 GB, then how long it will take..?
    As it usually happens in the dba world - it depends.

    In this case it depends on what kind of statistics are you gathering, which options have you selected, the size of the base table and the number and complexity of indexes as well as the available cpu power and degree of parallelism you decide to use.

    Having said that, for a 1 Gig table no matter what you do it should complete real fast, you should target under a minute completion time.
    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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