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Course Content

Introduction to SQL

The SUM() FunctionThe SUM() Function

SUM() - This function returns the sum of the values in a specific column. Let's take a look at the example:

Explanation: The SUM() function returns the sum of the population of all countries in Asia from the country table.


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

Here's a short example of the country table:

1JapanAsiaEastern Asia377829Tokyo126714000
3MexicoNorth AmericaCentral America1958201Mexico City98881000
15MaltaEuropeSouthern Europe316Valletta380200

Everything was clear?

Section 5. Chapter 8
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