Multiple choice technology databases

Can I define multiple unique constraints on a table?

  1. True

  2. False
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A Correct answer
Explanation

A table can have multiple UNIQUE constraints, each enforcing uniqueness on a different column or combination of columns. This is different from a PRIMARY KEY, of which a table can only have one. UNIQUE constraints are commonly used on columns like email, username, or phone number where duplicates should not occur.

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