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

How many people are under 40 for each gender Plot them as bar chart, list in ascending by the y-axis.
SELECT gender, COUNT(*) FROM Person WHERE age < 40 GROUP BY gender ORDER BY COUNT(*)
SELECT "gender", COUNT(*) FROM "Person" WHERE "age" < 40 GROUP BY "gender" ORDER BY COUNT(*) NULLS FIRST