Selecting Data Using A Range Of Dates

For some reason this is just not "clicking" with me and the longer I stare at it the more I overcomplicate things and then I just confuse myself further...

Provided this relation showing where "pkey" and "skey" met on "ServiceDate":


Code:


skey pkey ServiceDate
--------------------------------------
123 1 11/12/2005
124 1 10/12/2005 *
123 2 10/02/2005
124 2 10/12/2005
124 2 11/12/2005
123 2 11/02/2005


I need to select out a list of distinct pkeys and skeys only when there was no meeting between the two in November 2005. In other words, this query would produce only one record - the starred record - when run against this sample table. This is because even though, for example, skey 124 / pkey 2 has an entry outside the desired range, it also has one inside the desired range. The same goes for the record outside our range for 123 and 2 - it also has a record inside our range.

At this point, I've come to the conclusion that I can first select all the distinct pkeys and skeys where the servicedate is not in 11/2005 then join it to a selection of distinct pkeys and skeys where the servicedate IS in the desired date range. Does that seem like the most straightforward way through this?

I don't get the impression that this is that complicated a problem, but it's one of those deals where I goofed up somewhere along the line, and now I think I'm really overthinking the problem, so I'd be much obliged if someone could give me a hearty slap to clear the ol' noggin.