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      Question

      Which join should be used when you want to list all

      customers and any orders they may have placed, including customers who haven’t placed any orders?
      A Inner Join Correct Answer Incorrect Answer
      B Right Outer Join Correct Answer Incorrect Answer
      C Cross Join Correct Answer Incorrect Answer
      D Self Join Correct Answer Incorrect Answer
      E Left Outer Join Correct Answer Incorrect Answer

      Solution

      A left outer join returns all rows from the left (Customer) table and matches from the right (Orders), including customers with no orders.

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