CREATE TABLE undergoes (AssistingNurse VARCHAR2)
CREATE TABLE nurse (name VARCHAR2, EmployeeID VARCHAR2)

Find the names of nurses who are nursing an undergoing treatment.
SELECT DISTINCT T2.name FROM undergoes AS T1 JOIN nurse AS T2 ON T1.AssistingNurse = T2.EmployeeID
SELECT DISTINCT "T2"."name" FROM "undergoes" "T1" JOIN "nurse" "T2" ON "T1"."AssistingNurse" = "T2"."EmployeeID"