Home Forums SQL Server 2008 T-SQL (SS2K8) NOT IN query very expensive, 100% CPU RE: NOT IN query very expensive, 100% CPU

  • September 12, 2012 at 2:29 pm

    #1536916

    scogeb (9/12/2012)

    Thanks everyone. I learned a lot here. I went with the NOT EXISTS and it finishes in 2 seconds now. Very nice!

    Have you tried the NOT IN without the DISTINCT?

    Also, what's with all the LTRIM/RTRIM stuff? Data should be properly stored without leading spaces and trailing spaces hardly ever matter except when determining the actual number of bytes a strinng may contain.

    --Jeff Moden

    RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
    First step towards the paradigm shift of writing Set Based code:
    ________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.

    Change is inevitable... Change for the better is not.

    Helpful Links:
    How to post code problems
    How to Post Performance Problems
    Create a Tally Function (fnTally)