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

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