SQL Excluding Record sets
I was eating with another speaker at cf.Objective() (I am resolved to find a way to work my having spoken at a conference into all future anecdotes) and an interesting SQL question came up: How to delete everything except the first 1000 records. To my mind, this brought up a general class of problems in SQL. Which is, returning results that exclude the result of a query.
With that in mind, let's look at a few of those.