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Why do we need to add upper or lower function. why can't we get values just by
SELECT DISTINCT CITY FROM STATION
WHERE SUBSTR(CITY,LENGTH(CITY),1) IN ('a','i','o','e','u');
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Weather Observation Station 7
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Why do we need to add upper or lower function. why can't we get values just by SELECT DISTINCT CITY FROM STATION WHERE SUBSTR(CITY,LENGTH(CITY),1) IN ('a','i','o','e','u');