MS SQL compare dates?

Question

I have 2 dates (datetimes):

date1 = 2010-12-31 15:13:48.593
date2 = 2010-12-31 00:00:00.000

Its the same day, just different times. Com

Answer 1

Use the DATEDIFF function with a datepart of day.

SELECT ...
FROM ...
WHERE DATEDIFF(day, date1, date2) >= 0

Note that if you want to test that date1 <= date2 then you need to test that DATEDIFF(day, date1, date2) >= 0, or alternatively you could test DATEDIFF(day, date2, date1) <= 0.