Find records produced in the last hour

Question

I have a smalldatetime field named myTime recording when the record was created. I need the syntax that selects records created within the last hour.

Answer 1

If you want whole hours use the following...

--This Hour
SELECT  *
FROM    Whatever
WHERE   myTime >= dateadd(hour, datediff(hour, 0, GETDATE()), 0)

--Last Hour
SELECT  *
FROM    Whatever
WHERE   myTime  < dateadd(hour, datediff(hour, 0, GETDATE()), 0) AND  myTime >= dateadd(hour, datediff(hour, 0,  DATEADD(HOUR, -1, GETDATE())), 0)

--Hour before last
SELECT  *
FROM    Whatever
WHERE   myTime < dateadd(hour, datediff(hour, 0,  DATEADD(HOUR, -1, GETDATE())), 0) AND  myTime >= dateadd(hour, datediff(hour, 0, DATEADD(HOUR, -2, GETDATE())), 0)