Multiple choice general knowledge

Choose the right statement which satisfies the requirements of a rule

  1. An open order must be placed by a customer

  2. Don’t delete a customer that has placed any open orders

  3. NA

  4. N A
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Option A 'An open order must be placed by a customer' is a valid constraint rule establishing that open orders have a required relationship with customers. Option B is about data integrity (don't delete customers with orders) which is a different category of rule. Given the question asks for rule requirements, A is the correct constraint statement.

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