• sej2008 (1/15/2013)


    I found that TOP clause works little randomly with

    Select TOP 50 percent * from Tablename as it is not giving exact 50 percent in my result set .how it gets the data reading from data pages.I have Idea that it is little random in working in respect to percent clause over datapages.

    What happens when you add ORDER BY to your query?

    “Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw

    For fast, accurate and documented assistance in answering your questions, please read this article.
    Understanding and using APPLY, (I) and (II) Paul White
    Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden