Computer Science, asked by gabriella7968, 11 months ago

What is the significance of a primary key?

Answers

Answered by lucy02

4

Explanation:

Choosing a primary key is one of the most important steps in good database design. A primary key is a table column that serves a special purpose. Each database table needs a primary key because it ensures row-level accessibility. ... The values that compose a primary key column are unique; no two values are the same.

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