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  1. #1
    Join Date
    Nov 2004
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    Unanswered: parallelism on the fly

    I know you can change the max degree parallelism server wide, but can you do it on the fly for one query? I know... trust the query processor but when I turn it off for this one sp, my query goes from 3 seconds to 0 and I got this ex-MS guy in here telling me there is a way, but he does not remember how.

    I want him to simplify the sp or have his project's DBA do it, and I even offered to take a hack but.... you know.
    “If one brings so much courage to this world the world has to kill them or break them, so of course it kills them. The world breaks every one and afterward many are strong at the broken places. But those that will not break it kills. It kills the very good and the very gentle and the very brave impartially. If you are none of these you can be sure it will kill you too but there will be no special hurry.” Earnest Hemingway, A Farewell To Arms.

  2. #2
    Join Date
    Jan 2003
    Location
    Massachusetts
    Posts
    5,800
    Provided Answers: 11
    It can be done at the query level. I think you add
    Code:
    select *
    from pubs..authors
    option (maxdop 1)
    Standard qualifications apply of test with/without the query hint every once in a while to see if the data distribution now favors the parallel query.

  3. #3
    Join Date
    Nov 2004
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    Provided Answers: 6
    thank you.
    “If one brings so much courage to this world the world has to kill them or break them, so of course it kills them. The world breaks every one and afterward many are strong at the broken places. But those that will not break it kills. It kills the very good and the very gentle and the very brave impartially. If you are none of these you can be sure it will kill you too but there will be no special hurry.” Earnest Hemingway, A Farewell To Arms.

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