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Learn The SUM() Function | Aggregate Functions
Introduction to SQL

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The SUM() Function

SUM() returns the total of all the values in a given column.

Here’s an example:

123
SELECT SUM(population) FROM country WHERE continent='Asia';
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The SUM() function calculates the total population of all Asian countries found in the country table.

Here is the country table we are working with:

Task

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Write an SQL query that returns the sum of the surfacearea of countries from 'Europe'.

Solution

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SectionΒ 5. ChapterΒ 8
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book
The SUM() Function

SUM() returns the total of all the values in a given column.

Here’s an example:

123
SELECT SUM(population) FROM country WHERE continent='Asia';
copy

The SUM() function calculates the total population of all Asian countries found in the country table.

Here is the country table we are working with:

Task

Swipe to start coding

Write an SQL query that returns the sum of the surfacearea of countries from 'Europe'.

Solution

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

SectionΒ 5. ChapterΒ 8
Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
We're sorry to hear that something went wrong. What happened?
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