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Oracle认证考试

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Examine the data in the EMPLOYEES and EMP_HIST tables: The EMP_HIST table is updated at the end of every year. The employee ID, name, job ID, and salary of each existing employee are modified with the latest data. New employee details are added to the table. Which statement accomplishes this task?()

  • A、
  • B、
  • C、
  • D、
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