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In the given context, we have a table named 'station' which contains a column 'city'. The problem at hand is to find all the unique city names that do not end with a vowel (a, e, i, o, u).
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The solution uses a SQL query to select distinct city names from the 'station' table. It then filters out the cities that end with a vowel by using the 'not like' clause with the '%' wildcard character, which represents zero, one, or multiple characters. This way, it ensures that the city names selected do not end with any vowel.
select distinct(city) from station where
city not like "%a" and
city not like "%e" and
city not like "%i" and
city not like "%o" and
city not like "%u";
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