Help with a query?

[successguy]

I'm wondering if anybody would be so kind as to tell me how to do this query. I want to know every member who has posted on a given day sorted in order of number of posts they made that day. So if for example I asked who posted on February 21, 2012, it would show me everybody who posted on that day. And the sorting would be done not by the member's total posts, but by their total posts for that day only. You can basically already do this in the search engine, but you can sort by total posts only.