CREATE TABLE Person (name VARCHAR2, age NUMBER, city CLOB, gender CLOB, job CLOB)
CREATE TABLE PersonFriend (name VARCHAR2, friend VARCHAR2, year NUMBER)

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"