CREATE TABLE market (market_id NUMBER, district CLOB, num_of_employees NUMBER, num_of_shops NUMBER, ranking NUMBER)
CREATE TABLE phone (name CLOB, phone_id NUMBER, memory_in_g NUMBER, carrier CLOB, price NUMBER)
CREATE TABLE phone_market (market_id NUMBER, phone_id CLOB, num_of_stock NUMBER)

What is the carrier of the most expensive phone?
SELECT carrier FROM phone ORDER BY price DESC LIMIT 1
SELECT "carrier" FROM "phone" ORDER BY "price" DESC FETCH FIRST 1 ROWS ONLY