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Answers and rating deltas for

How to select a value that can come from two different tables?

Author Votes Δ
Siyual 2 +0.82
Sergei Podlipaev 1 +1.47
Mottor 0 -2.35
mathguy 0 -0.71
Last visited: Oct 4, 2016, 8:25:51 PM