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Hackerrank | MySQL | Population Density Difference 본문

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Hackerrank | MySQL | Population Density Difference

meal 2020. 8. 28. 09:37

Population Density Difference

Problem

 

Population Density Difference | HackerRank

Query the difference between the maximum and minimum city populations in CITY.

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Query the difference between the maximum and minimum populations in CITY.

 

 

SELECT MAX(population) - MIN(population)
FROM city
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