CREATE TABLE Has_amenity (dormid NUMBER, amenid NUMBER)
CREATE TABLE Lives_in (stuid NUMBER, dormid NUMBER, room_number NUMBER)
CREATE TABLE Dorm_amenity (amenid NUMBER, amenity_name VARCHAR2)
CREATE TABLE Student (StuID NUMBER, LName VARCHAR2, Fname VARCHAR2, Age NUMBER, Sex VARCHAR2, Major NUMBER, Advisor NUMBER, city_code VARCHAR2)
CREATE TABLE Dorm (dormid NUMBER, dorm_name VARCHAR2, student_capacity NUMBER, gender VARCHAR2)

Find the oldest age for students with different sex in a bar chart, and I want to list y-axis from high to low order.
SELECT Sex, MAX(Age) FROM Student GROUP BY Sex ORDER BY MAX(Age) DESC
SELECT "Sex", MAX("Age") FROM "Student" GROUP BY "Sex" ORDER BY MAX("Age") DESC