اختبار شهادة البيانات CompTIA Data+

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كل الأسئلة

A sales manager requested a report that contains the first name, last name, and phone number of all of the company’s customers and employees. The data engineer needs to return all the records from several tables, even duplicates. Which of the following is the best way to join the two tables?

الخيارات

  • A FULL OUTER JOIN
  • B FULL INNER JOIN
  • C LEFT OUTER JOIN
  • D CROSS JOIN

النقاشات

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