sql finding longest and shortest names in a fleld

# IN the example below, "CITY" is the filed, "STATION" is the Table
(SELECT CITY, LENGTH(CITY)
FROM STATION
ORDER BY LENGTH(CITY) ASC, CITY ASC LIMIT 1)
UNION
(SELECT CITY, LENGTH(CITY)
FROM STATION
ORDER BY 
LENGTH(CITY) DESC, CITY DESC LIMIT 1)