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Write a query to find the difference between the maximum and minimum population values recorded in the 'CITY' table.

Question

Write a query to find the difference between the maximum and minimum population values recorded in the 'CITY' table.

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Solution

Sure, here is the SQL query to find the difference between the maximum and minimum population values recorded in the 'CITY' table:

SELECT MAX(population) - MIN(population) AS population_difference
FROM CITY;

Here's a step-by-step breakdown of the query:

  1. SELECT: This keyword is used to select data from a database.

  2. MAX(population): This function returns the maximum value of the 'population' column.

  3. -: This is the subtraction operator.

  4. MIN(population): This function returns the minimum value of the 'population' column.

  5. AS population_difference: This keyword is used to rename the result of the calculation to 'population_difference'.

  6. FROM CITY;: This clause specifies the 'CITY' table as the source of the data.

The result of this query will be the difference between the maximum and minimum population values in the 'CITY' table.

This problem has been solved

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