Question

Mentuon the characteristics of a good candidate for a primary key

Answer 1

Explanation:

The criteria for consideration of a primary key are:

Uniqueness.

Irreducibility (no subset of the key uniquely identifies a row in the table)

Simplicity (so that relational representation & manipulation can be simpler)

Stability (should not be altered frequently)

Familiarity (meaningful to the user)

Answer 2

• Uniqueness.
• Irreducibility (no subset of the key uniquely identifies a row in the table
• Simplicity (so that relational representation & manipulation can be simpler).
• Stability (should not be altered frequently).
• Familiarity (meaningful to the user).

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