Home Forums SQL Server 2008 T-SQL (SS2K8) read UNCOMMITTED run slower than read COMMITTED RE: read UNCOMMITTED run slower than read COMMITTED

  • November 22, 2012 at 10:22 pm

    #1561744

    matthew.peters (11/22/2012)

    Hello

    I have the following query which runs considerably slower when we change the isolation level to read uncomitted, I just wanted to understand why. I have attached the 2 query plans and scripts

    Not sure what the problem is but I can't open you're query plan with SQL Server 2008 client tools (SSMS).

    --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)