Home Forums SQL Server 2005 T-SQL (SS2K5) Convert CSV values in three columns to rows RE: Convert CSV values in three columns to rows

  • June 29, 2010 at 6:03 pm

    #1186792

    scott.pletcher (6/29/2010)

    So, the inline CTE has better performance than a tally table? Interesting. Sometimes SQL's performance traits are a bit quirky.

    In other functions, I've not found that to be true. The Tally Table normally squeaks past the CTE for duration but the CTE gens virtually no reads. I guess it depends on how you want to impact the system. When I get around to the Tally Table article rewrite, I'll include million row testing for both methods.

    --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)