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Answers and rating deltas for

How can I make this SQL query more elegant?

Author Votes Δ
Madhivanan 1 +0.42
Sagar Gangwal 1 +2.22
Shailesh Pratapwar 0 -2.68
Trung Duong 0 -2.87
Last visited: Aug 22, 2017, 5:06:57 PM