Subject Re: Order by (Date minus Date)
Author ai_no_kareshi
Gosh, you're right. It does work. My bad. On to the next question,
then. The following query really doesn't work.

SELECT P.PeriodName, ('2008/01/21' - P.StartDate) AS PeriodLength
FROM Periods P
ORDER BY 2 DESC

Could you help me get this working with date literals?