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Answers and rating deltas for

How can I aggregate rows to reduce the resolution of data in a SQL query?

Author Votes Δ
kevchadders 1 +4.15
spoulson 0 0.00
Julian de Wit 0 -1.47
pawelbrodzinski 0 -1.22
Herms 0 -0.18
Last visited: Sep 14, 2014, 5:07:29 AM