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Answers and rating deltas for

what's wrong in this sql?

Author Votes Δ
karim79 2 +0.66
Oded 1 -0.36
René Nyffenegger 1 +0.61
Dr. Rajesh Rolen 1 +0.58
mcha 0 -3.57
Last visited: Sep 14, 2014, 5:07:29 AM