Home Forums Article Discussions Article Discussions by Author Discuss content posted by Brian Ellul Sub query expressions vs. Joins. RE: Sub query expressions vs. Joins.

  • July 26, 2010 at 6:42 am

    #1198166

    Gianluca Sartori (7/26/2010)

    Jeff Moden (7/26/2010)

    Gianluca Sartori (7/26/2010)

    A minor note on the Oracle thing: it used to be completely rule-based, but now it's entirely cost-based. Starting from version 10g the rule-based optimizer is no longer available.

    Thanks for the update on Oracle, Gianluca. It HAS been a while since I've had to work with it at such a level.

    :crying: You don't know how lucky you are...

    Heh... actually, I do. Better yet, one of the things I get to do at my "new" job is migrate some Oracle databases and related code to SQL Server. 😀

    --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)