Context: CREATE TABLE countries (CountryName VARCHAR, countryId VARCHAR); CREATE TABLE countries (CountryName VARCHAR); CREATE TABLE CAR_MAKERS (Country VARCHAR)
Question: What are the name of the countries where there is not a single car maker?
Answer: SELECT CountryName FROM countries EXCEPT SELECT T1.CountryName FROM countries AS T1 JOIN CAR_MAKERS AS T2 ON T1.countryId = T2.Country