CREATE TABLE Person (name VARCHAR, age INT, city TEXT, gender TEXT, job TEXT)
CREATE TABLE PersonFriend (name VARCHAR, friend VARCHAR, year INT)

What is the average age for a male in each job Visualize by bar chart, and show x-axis in desc order.
SELECT job, AVG(age) FROM Person WHERE gender = 'male' GROUP BY job ORDER BY job DESC
SELECT "job", AVG("age") FROM "Person" WHERE "gender" = 'male' GROUP BY "job" ORDER BY "job" DESC NULLS LAST