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Answers and rating deltas for

Why are queries these not equivalent? (correlated subquery vs. group by)

Author Votes Δ
Gordon Linoff 1 +0.45
Matt 1 +3.32
John Bollinger 0 -0.50
su8898 0 -1.83
J-Dizzle 0 -1.08
Last visited: Apr 28, 2015, 9:24:47 PM