SQL “between” not inclusive

Question

I have a query like this:

SELECT * FROM Cases WHERE created_at BETWEEN \'2013-05-01\' AND \'2013-05-01\'

But this gives no results even tho

Answer 1

I find that the best solution to comparing a datetime field to a date field is the following:

DECLARE @StartDate DATE = '5/1/2013', 
        @EndDate   DATE = '5/1/2013' 

SELECT * 
FROM   cases 
WHERE  Datediff(day, created_at, @StartDate) <= 0 
       AND Datediff(day, created_at, @EndDate) >= 0 

This is equivalent to an inclusive between statement as it includes both the start and end date as well as those that fall between.