T-SQL Query Returning Items It Shouldn't Be

Question

Here\'s the scenario. The column in question is called \'datein\' and it\'s type is \'datetime\'. I have three rows with the value of \'2009-10-01 00:00:00.000\' for \'datein\

Answer 1

It's the lack of precision in the thousandths of a second value. Try ".997" instead.

MSDN DateTime documentation

Run this and you'll see:

declare @dt datetime

select @dt = '2009-09-30 23:59:59.999'
select @dt