solution using regexp

Author: despagito

basic-select/weather-observation-station-8.sql

@@ -6,3 +6,9 @@ SELECT DISTINCT City
 FROM Station
 WHERE LEFT(City, 1) IN ('a', 'A', 'e', 'E', 'i', 'I', 'o', 'O', 'u', 'U') AND
       RIGHT(City, 1) IN ('a', 'A', 'e', 'E', 'i', 'I', 'o', 'O', 'u', 'U');
+
+-- or
+
+SELECT DISTINCT city
+FROM station
+WHERE city REGEXP '^[aeiou].*[aeiou]$'