CREATE TABLE country (Country_ID NUMBER, Name CLOB, Population NUMBER, Area NUMBER, Languages CLOB)
CREATE TABLE roller_coaster (Roller_Coaster_ID NUMBER, Name CLOB, Park CLOB, Country_ID NUMBER, Length FLOAT, Height FLOAT, Speed CLOB, Opened CLOB, Status CLOB)

Show the names of countries and the average speed of roller coasters from each country with a bar chart, and I want to display by the y axis from high to low.
SELECT T1.Name, AVG(T2.Speed) FROM country AS T1 JOIN roller_coaster AS T2 ON T1.Country_ID = T2.Country_ID GROUP BY T1.Name ORDER BY AVG(T2.Speed) DESC
SELECT "T1"."Name", AVG("T2"."Speed") FROM "country" "T1" JOIN "roller_coaster" "T2" ON "T1"."Country_ID" = "T2"."Country_ID" GROUP BY "T1"."Name" ORDER BY AVG("T2"."Speed") DESC