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Answers and rating deltas for

Why use multiple columns as primary keys (composite primary key)

Author Votes Δ
MJB 30 +4.62
John Hartsock 8 +1.44
Robert Paulson 3 -0.24
ig0774 1 -4.17
nvogel 1 0.00
HLGEM 0 0.00
Last visited: Sep 14, 2014, 5:07:29 AM