Computer Science, asked by mannuuy31, 2 months ago

2. What are the conditions for a field to be a primary key?

Answers

Answered by freedarajesh2003

Answer:

Explanation:

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.

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