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Hierarchies in sql server

  • May 26, 2010 at 4:39 am

    #147238

    I read the good article of Agha Usman on "Storing/Retrieving Hierarchies In SQL Server Database" but it left me with one question :

    1) What if want to move a node (and all its subnode) to another position ?

    Any idea?

    One other question :

    i have to store data about an address book whit contact and group , where a contact may belong to only one group and groups can be nested ; which strategies can i use different from the modified preorder tree traversal ?

    thanks

  • May 26, 2010 at 3:19 pm

    #1173043

    The answer to your first question is on page 3 of the article linked in the article your efer to.

    --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)

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