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Computer Science Fundamentals Data Structures Objective

Feb 22, 2013

What is primary key?

Choose the correct answer:

A) The attribute or combination of attributes that uniquely identifies a row or record

B) An attribute or combination of attribute in a table whose value match a primary key in another table

C) Any of the candidate keys that is not part of the primary key

D) Both b and c

Detailed Explanation

No Explanation

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