Revising Aggregations The Sum Function HackerRank Solution

The problem context revolves around the need to determine the total population of a specific district, in this case, 'California'. The data is stored in a database table named 'CITY', which contains information about different cities, including their population and the district they belong to.

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Here is the Revising Aggregations The Sum Function HackerRank Solution HackerRank solution using CodeRankGPT:

The solution approach involves using a SQL SELECT statement to query the 'CITY' table. The SUM function is used to add up all the population values of the cities that belong to the 'California' district. The WHERE clause filters the cities based on the district name.


SELECT SUM(POPULATION)
FROM CITY
WHERE DISTRICT = 'California'

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