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Answers and rating deltas for

How can I efficiently compute the MAX of one column, ordered by another column?

Author Votes Δ
Andomar 1 +1.21
AdaTheDev 1 +0.94
Thomas 1 +1.19
Aaronaught 0 -2.27
Tom H. 0 -1.07
Last visited: Sep 14, 2014, 5:07:29 AM