• http://technet.microsoft.com/en-us/library/ms177634.aspx

    FROM (derived_table_query) AS <derived_table_alias>

    ON derived_table_alias.column = other_table.other_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