Thank you for this new Stairway series Greg. I think it is a great idea, and helpful for those like studying for the 70-461 exam.

One minor typo: At the very beginning, you write, " ... that you learned in the prior two TSQL stairways:" I believe the first bullet that follows that should read "Stairway to T-SQL: DML (not DLM). The actual hyperlink is correct.

Regards,

John B.