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Introduction to SQL

Using the OR operatorUsing the OR operator

The OR operator is used to filter records based on more than one condition, like if you want to return all countries from Asia but also those from Europe:

Let’s look at the example:


Write an SQL query to retrieve the name of the countries that are from 'Asia' or 'North America' continent.

Note that north america is not the same as North America, and asia is not the same as Asia. Be careful and write correctly: North America and Asia.

Here's a short example of the country table:

1JapanAsiaEastern Asia377829Tokyo126714000
3MexicoNorth AmericaCentral America1958201Mexico City98881000
15MaltaEuropeSouthern Europe316Valletta380200

Everything was clear?

Section 4. Chapter 3
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