• Hiearchy can be a good thing... but I don't believe the op can change the structure of the tables. 😉

    CS... Please pardon me if I'm wrong, but this looks a whole lot like a homework problem. You'd probably get a better response if you posted what you've tried, so far.

    --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)