Home Forums SQL Server 7,2000 SQL Server Newbies Recursive query for a Bill of Materials table RE: Recursive query for a Bill of Materials table

  • November 9, 2007 at 10:37 pm

    #750037

    Matt Miller (11/9/2007)

    If it's a process THIS expensive, you should consider making this a permanent table. Meaning - keep the existing table just as it is, and have another to track the atomic parts manifest.

    I can't imagine that your sub assembly parts change all that often and the properly designed stored proc could "recalculate" only those items with affected assemblies/sub-assemblies.

    I absolutely agree! And, if you're going to do that, make lookups fast! Joe Celko's "Nested Set" hierarchies are the berries!

    --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)