I have 1 table contains about 4 millions entries structure like below:
[Alarm History]
(
AlarmID int,
SetTime datetime
)
SELECT all the AlarmID that happened during Jan 2008 and no such AlarmID during Dec 2007. I used:
SELECT * FROM [Alarm History]
WHERE SetTime BETWEEN '1-jan-2008' AND '31-jan-2008'
AND AlarmID