CREATE TABLE physician (name VARCHAR)
CREATE TABLE appointment (Physician VARCHAR)

List the name of physicians who never took any appointment.
SELECT name FROM physician EXCEPT SELECT T2.name FROM appointment AS T1 JOIN physician AS T2 ON T1.Physician = T2.EmployeeID
SELECT "name" FROM "physician" EXCEPT SELECT "T2"."name" FROM "appointment" AS "T1" JOIN "physician" AS "T2" ON "T1"."Physician" = "T2"."EmployeeID"