• Good question Ron.

    If anyone wants to learn more about using the Apply operator, check out the "Using APPLY" links in my signature block for some great articles written by Paul White. He does an excellent job of walking you through it.

    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