Keep in mind that the one with "between" will be much easier on the server than the ones that have functions in the Where clause.

Also, unless you've already handled this (can't tell from the question), do remember to have the year in your Where clause while you're at it. Otherwise, you'll get data from every February, regardless of year. (If that's what you want, fine, but most of the time you want just one specific February.)

The "between" version (first reply) will also handle the year. And can easily be used for things like quarterly reports (just use a wider set of dates in the parameters).

And, if all you have is the month (and year), you can use this to get the dates for the first and last:

declare @From datetime, @To datetime

select @From = cast(@Month + ' 1, ' + @Year as datetime),

@To = dateadd(millisecond, -3, dateadd(month, 1, cast(@Month + ' 1, ' + @Year as datetime)))

select col1

from dbo.Table

where date between @From and @To

(Of course, you'll have to put in your own date and year variables. I assume they are both strings [varchar] in this example, otherwise they will have to be converted in the initial select statement.)