CREATE TABLE country (country_id DECIMAL, name TEXT, population DECIMAL, area DECIMAL, languages TEXT)
CREATE TABLE roller_coaster (roller_coaster_id DECIMAL, name TEXT, park TEXT, country_id DECIMAL, length DECIMAL, height DECIMAL, speed TEXT, opened TEXT, status TEXT)

Show the names of countries that have more than one roller coaster.
SELECT T1.name FROM country AS T1 JOIN roller_coaster AS T2 ON T1.country_id = T2.country_id GROUP BY T1.name HAVING COUNT(*) > 1
SELECT "T1"."name" FROM "country" AS "T1" JOIN "roller_coaster" AS "T2" ON "T1"."country_id" = "T2"."country_id" GROUP BY "T1"."name" HAVING COUNT(*) > 1