Question

Write importance of primary key?​

Answer 1

Answer:

Heya Mate

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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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Answer 2

Answer:

Well

Explanation:

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