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

What is minimum age for different job title, sort in descending by the X.
SELECT job, MIN(age) FROM Person GROUP BY job ORDER BY job DESC
SELECT "job", MIN("age") FROM "Person" GROUP BY "job" ORDER BY "job" DESC NULLS LAST