Respuesta :
Answer:
Check the explanation
Explanation:
For SQL server and mySQL:
     SELECT   C.SerialNumber, Make, Model, E.EmployeeNumber, Â
              LastName, Firstname, Department, OfficePhone
     FROM    COMPUTER AS C JOIN COMPUTER ASSIGNMENT AS CA    Â
              ON C.SerialNumber=CA.SerialNumber
              JOIN EMPLOYEE AS E ON
              CA.EmployeeNumber=E.EmployeeNumber
              WHERE DateReassigned IS NULL
              ORDER BYDepartment, LastName;