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select city,length(city) from (select city , length(city) from (select city from station order by length(city)) as a order by length(city),city limit 1) as b
union all
select city,length(city) from (select city , length(city) from (select city from station order by length(city)) as c order by length(city) desc,city limit 1) as d
should work for mysql
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Weather Observation Station 5
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select city,length(city) from (select city , length(city) from (select city from station order by length(city)) as a order by length(city),city limit 1) as b union all select city,length(city) from (select city , length(city) from (select city from station order by length(city)) as c order by length(city) desc,city limit 1) as d
should work for mysql