Solutions of All Medium SQL Hackerranks Task for Basic Level

Author: jeanbou

HackerRank/SQL/sql039_Aggregations_weatherObservationStation18.sql

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+SELECT ROUND(ABS(MIN(lat_n)-MAX(lat_n))+ABS(MIN(long_w)-MAX(long_w)),4) FROM STATION

HackerRank/SQL/sql040_Aggregations_weatherObservationStation19.sql

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+SELECT ROUND(SQRT(POWER(MAX(lat_n)-MIN(lat_n),2)+POWER(MAX(long_w)-MIN(long_w),2)),4) FROM STATION

HackerRank/SQL/sql041_AdvancedSelect_ThePADS.sql

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+-- Note: the difficulties werer when you tried to unite all and previously sorted 1 select was squizzed that's why order by at the end
+((SELECT CONCAT(NAME,'(',SUBSTRING(Occupation, 1, 1),')') AS COMPLICATEDNAME FROM OCCUPATIONS)
+UNION ALL
+(SELECT CONCAT('There are a total of ',COUNT(Occupation),' ',LOWER(Occupation),'s.') FROM OCCUPATIONS
+GROUP BY Occupation)
+)
+ORDER BY COMPLICATEDNAME