Home Forums Article Discussions Article Discussions by Author Discuss Content Posted by Suresh Maganti Usage of CTE - Trick with Dates RE: Usage of CTE - Trick with Dates

  • June 21, 2013 at 6:26 am

    #1626297

    whenriksen (6/18/2013)

    One other thing:

    Please note that I have used TOP 100 PERCENT in the SELECT statement in this function because I want to retain the ORDER BY clause, which is otherwise not allowed in InLine table-values functions.

    Top 100 Percent... Order by no longer has any effect on the result. SQL 2008 ignores that combination. You can read more here.

    http://blog.sqlauthority.com/2009/11/24/sql-server-interesting-observation-top-100-percent-and-order-by/

    Absolutely true. They changed the optimizer to think that ORDER BY isn't needed when TOP 100% is used as an "optimization" so it doesn't work anymore. However, TOP 2147483647 (Largest number for an integer) still works.

    Even with that, I agree that if you need the final result set to be sorted, you cannot rely on the sort of a sub-query to do it for you.

    --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.

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    How to post code problems
    How to Post Performance Problems
    Create a Tally Function (fnTally)