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IS
Question Practice

What is a primary key in a database?

Attempt the question, check the explanation, and continue with similar questions to build confidence before exams.

MCQ_SA
CBSE
Class 11
Informatics Practices
Informatics Practices
Introduction to Structured Que...
Question Bank

What is a primary key in a database?

Single Answer MCQ
Q-00066978

What is a primary key in a database?

1

A unique identifier for a record

2

A foreign key

3

An index for sorting data

4

A data type

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