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Here is the answer in oracle without union and in single sql statement.
select MIN(city) , length(city) from station group by length(city) having length(city) =(select MIN(length(city)) from station ) or length(city) =(select MAX(length(city)) from station ) order by length(city) ASC;
Weather Observation Station 5
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Here is the answer in oracle without union and in single sql statement.
select MIN(city) , length(city) from station group by length(city) having length(city) =(select MIN(length(city)) from station ) or length(city) =(select MAX(length(city)) from station ) order by length(city) ASC;