SELECT T2.name FROM appointment AS T1 JOIN physician AS T2 ON T1.Physician  =  T2.EmployeeID
What are the names of all the physicians who took appointments.
SELECT T2.name FROM appointment AS T1 JOIN physician AS T2 ON T1.Physician = T2.EmployeeID
select t2 . name from appointment as t1 join physician as t2 on t1 . physician = t2 . employeeid
What are the names of all the physicians who took appointments .