• Not sure the use of a correlated subquery (a form of hidden RBAR) will speed anything up here... Maybe...

    The real fact of the matter is the OP says it used to work just fine... and doesn't now... what could be the problem? Parallelism?

    --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)