Does BETWEEN with dates actually work in SQL SERVER 2008

Question

According to cdonner, in his answer here and on his blog.

He claims that BETWEEN with date yields inconsistent results

From his blog:

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Answer 1

I have to use something like this:

Declare @BeginDate SmallDateTime
Declare @EndDate SmallDateTime
Set @BeginDate = '2007-08-01'
Set @EndDate = '2007-08-31'

Select *
From dbo.table1 a
Where a.session_date Between @BeginDate + ' 00:00:00' And @EndDate + ' 23:59:59'
Order By a.session_date asc

To get correct BETWEEN datetime's