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The property (or set of properties) that uniquely defines each row in a table is called the:

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in Database Management by (119k points)
The property (or set of properties) that uniquely defines each row in a table is called the:

(a) Identifier

(b) Index

(c) Primary key

(d) Symmetric key

This question was addressed to me during an interview.

My doubt is from Ordered Indexing and Hashing in chapter Indexing and Hashing of Database Management

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Best answer
Right choice is (c) Primary key

The best I can explain: Primary is used to uniquely identify the tuples.

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