Computer Science, asked by master5481, 9 months ago

what is primary key

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Answered by mirdul1000

Answer:

In the relational model of databases, a primary key is a specific choice of a minimal set of attributes that uniquely specify a tuple in a relation. Informally, a primary key is "which attributes identify a record", and in simple cases are simply a single attribute: a unique id.

Answered by jarnail1577925

Minimum set of attributes please mark me to brain list answer

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