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Answers and rating deltas for

What is the difference between a primary key and a unique constraint?

Author Votes Δ
Håvard 32 +3.97
Andrew Hare 13 +0.44
Giriraj Govil 6 +2.53
Beth 2 +1.93
Kevin LaBranche 2 +1.82
prnawa 2 0.00
Thom Smith 1 +0.20
Cătălin Pitiș 1 +0.12
onedaywhen 1 0.00
Am1rr3zA 0 -2.18
Kazoom 0 -2.57
jrista 0 -0.63
alienonland 0 -2.56
Manjeet Barnala 0 0.00
Pete 0 -2.58
Last visited: Sep 14, 2014, 5:07:29 AM