- A Join
- B Outer join
- C Exists join
- D NotExists join
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Answer:
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- A. Incorrect: A join would return customer data and sales order data where the customer was associated with a sales order.
- B. Incorrect: An outer join would return customer data and sales order data regardless of an association between them.
- C. Incorrect: An exists join would return customer data for customers who are associated with a sales order.
- D. Correct: A notExists join would return customer data for customers who are not associated with a sales order.
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