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Weather Observation Station 4
Weather Observation Station 4
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For MySQL
SELECT COUNT(CITY)-COUNT(DISTINCT CITY) FROM STATION;
ngoccth_SQL SERVER: SELECT COUNT (city) - COUNT (DISTINCT city) FROM STATION
Select count(city) - count(distinct(city)) from station
SELECT (COUNT(CITY) - COUNT(DISTINCT CITY)) AS TOTALCITIES FROM STATION; SERVER -DB2