What do you understand by Primary key and Candidate keys.

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What do you understand by Primary key and Candidate keys.

Monjur Alahi

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2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

An attribute or set of attributes which are used to identify a tuple uniquely is known as the primary key. If a tuple has more than one such attribute which identifies a tuple uniquely than all such attributes are known as candidate keys.

4 views Answered 2023-02-05 15:29