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

how old is the youngest person for each job?, and could you order x-axis from low to high order?
SELECT job, MIN(age) FROM Person GROUP BY job ORDER BY job
SELECT "job", MIN("age") FROM "Person" GROUP BY "job" ORDER BY "job" NULLS FIRST