CREATE TABLE market (Market_ID NUMBER, District CLOB, Num_of_employees NUMBER, Num_of_shops FLOAT, Ranking NUMBER)
CREATE TABLE phone (Name CLOB, Phone_ID NUMBER, Memory_in_G NUMBER, Carrier CLOB, Price FLOAT)
CREATE TABLE phone_market (Market_ID NUMBER, Phone_ID CLOB, Num_of_stock NUMBER)

What is the number of carriers of phones? Give me a bar chart, sort in desc by the total number.
SELECT Carrier, COUNT(Carrier) FROM phone GROUP BY Carrier ORDER BY COUNT(Carrier) DESC
SELECT "Carrier", COUNT("Carrier") FROM "phone" GROUP BY "Carrier" ORDER BY COUNT("Carrier") DESC