Computer Science, asked by rani6739, 9 months ago

The value of primary key is

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Answered by ananthkrishna505
1

Answer:

A primary key is a field in a table which uniquely identifies each row/record in a database table. Primary keys must contain unique values. A primary key column cannot have NULL values. A table can have only one primary key, which may consist of single or multiple fields.

Explanation:

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