• Great article on the Basics of iTVFs, Steve.

    For those wondering about the performance of iTVFs that Steve mentioned, here's an article that discusses and demonstrates the performance advantage with code.  It also provides an example of how to make a function that returns a scalar value using an iTVF.
    How to Make Scalar UDFs Run Faster (SQL Spackle)

    --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)