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what is the need of 'city' after lenght(city) in the statement?
similary after length(city) desc, city.. why ?
SELECT * FROM(SELECT CITY, LENGTH(CITY) FROM STATION ORDER BY LENGTH(CITY),CITY) WHERE ROWNUM = 1; SELECT * FROM(SELECT CITY, LENGTH(CITY) FROM STATION ORDER BY LENGTH(CITY) DESC,CITY) WHERE ROWNUM = 1;
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what is the need of 'city' after lenght(city) in the statement? similary after length(city) desc, city.. why ? SELECT * FROM(SELECT CITY, LENGTH(CITY) FROM STATION ORDER BY LENGTH(CITY),CITY) WHERE ROWNUM = 1; SELECT * FROM(SELECT CITY, LENGTH(CITY) FROM STATION ORDER BY LENGTH(CITY) DESC,CITY) WHERE ROWNUM = 1;