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Hackerrank | MySQL | Revising Aggregations - The Count Function

meal 2020. 8. 28. 09:30

Revising Aggregations - The Count Function

Problem

 

Revising Aggregations - The Count Function | HackerRank

Query the number of cities having populations larger than 100000.

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Query a count of the number of cities in CITY having a Population larger than100,000.

 

 

 

- solution

SELECT COUNT(*)
FROM city
WHERE population > 100000

 

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