CREATE TABLE market (market_id DECIMAL, country TEXT, number_cities DECIMAL)
CREATE TABLE film_market_estimation (estimation_id DECIMAL, low_estimate DECIMAL, high_estimate DECIMAL, film_id DECIMAL, type TEXT, market_id DECIMAL, year DECIMAL)
CREATE TABLE film (film_id DECIMAL, title TEXT, studio TEXT, director TEXT, gross_in_dollar DECIMAL)

What are the countries for each market, ordered alphabetically?
SELECT country FROM market ORDER BY country
SELECT "country" FROM "market" ORDER BY "country" NULLS FIRST