Home Forums Article Discussions Article Discussions by Author Discuss Content Posted by David Poole Intersect, Except, Union, All and Any RE: Intersect, Except, Union, All and Any

  • July 19, 2009 at 9:29 am

    #1026638

    Very good article David.

    One area where I find INTERSECT / EXCEPT easier to work with is when dealing with multiple columns, such as what you might find for a PK. It would really be interesting to see a comparison between the different methods using multiple columns instead of just a single column.

    Wayne
    Microsoft Certified Master: SQL Server 2008
    Author - SQL Server T-SQL Recipes

    If you can't explain to another person how the code that you're copying from the internet works, then DON'T USE IT on a production system! After all, you will be the one supporting it!
    Links:
    For better assistance in answering your questions
    Performance Problems
    Common date/time routines
    Understanding and Using APPLY Part 1 & Part 2