What is the difference between a Primary Key and a Unique Key?

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can you help me with this question

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Akshathadabbara 2025-02-28T15:36:00+00:00 1 Answer 8 views
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  1. Aravind
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    2025-02-28T15:39:00+00:00
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    Feature Primary Key Unique Key
    Uniqueness Yes Yes
    NULL Allowed? No Yes (only one NULL)
    Number of Keys in a Table Only 1 Multiple

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