SQL query for finding the longest name and shortest name in a table

Question

I have a table with one of the columns is of type varchar(city). and want to find the longest and shortest of values stored in that column.

select a.city, a.city         


        

Answer 1

Shortest:

select city, char_length(city) city_length from station order by city_length, city limit 1;

Longest:

select city, char_length(city) city_length from station order by city_length desc, city limit 1;