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Answers and rating deltas for

Does a table with a surrogate key require a unique constraint on a natural key to be in 1NF?

Author Votes Δ
Jonathan Leffler 4 +1.63
HLGEM 2 +1.08
Tom H. 1 -1.62
Walter Mitty 1 -1.08
Last visited: Sep 14, 2014, 5:07:29 AM