Microsoft

98-364 · Question #177

Which constraint ensures a unique value in the ID column for each customer?

The correct answer is D. PRIMARY KEY. See the full explanation below for the reasoning.

Question

Which constraint ensures a unique value in the ID column for each customer?

Options

ADISTINCT
BFOREIGN KEY
CSEQUENTIAL
DPRIMARY KEY

How the community answered

(30 responses)

A
3% (1)
B
10% (3)
C
7% (2)
D
80% (24)

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Full 98-364 Practice