CREATE TABLE personfriend (name CLOB, friend CLOB, year NUMBER)
CREATE TABLE person (name CLOB, age NUMBER, city CLOB, gender CLOB, job CLOB)

How many people are older than every engineer?
SELECT COUNT(*) FROM person WHERE age > (SELECT MAX(age) FROM person WHERE job = 'engineer')
SELECT COUNT(*) FROM "person" WHERE "age" > (SELECT MAX("age") FROM "person" WHERE "job" = 'engineer')