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Answers and rating deltas for

Is it possible to group rows this way using MySQL?

Author Votes Δ
n-dru 15 +0.93
Chintan 9 +2.68
Abhik Chakraborty 8 -0.49
bdifferent 6 -0.84
rdn87 3 -3.32
Last visited: Apr 5, 2016, 12:10:40 PM