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Question

A unique, DBMS-supplied identifier used as the primary key of a relation is called a(n):

a.

primary key.

b.

foreign key.

c.

composite key.

d.

surrogate key.

Posted under DBMS

Answer: (d).surrogate key.

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Q. A unique, DBMS-supplied identifier used as the primary key of a relation is called a(n):

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