CREATE TABLE customers (town_city VARCHAR2, customer_type_code VARCHAR2)

Which city has the least number of customers whose type code is 'Good Credit Rating'?
SELECT town_city FROM customers WHERE customer_type_code = "Good Credit Rating" GROUP BY town_city ORDER BY COUNT(*) LIMIT 1
SELECT "town_city" FROM "customers" WHERE "Good Credit Rating" = "customer_type_code" GROUP BY "town_city" ORDER BY COUNT(*) FETCH FIRST 1 ROWS ONLY