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Introduction to SQL

bookUsing 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.

Here is the syntax of using the OR operator:

SELECT columns
FROM table
WHERE column = 'first_option' OR column = 'second_option';

Let's look at the example:


              
123

            
SELECT name, population, continent, region
FROM country
WHERE continent = 'Asia' OR continent = 'Europe';
copy
Task

Swipe to start coding

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

Note

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.

Solution

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SectionΒ 4. ChapterΒ 3
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bookUsing 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.

Here is the syntax of using the OR operator:

SELECT columns
FROM table
WHERE column = 'first_option' OR column = 'second_option';

Let's look at the example:


              
123

            
SELECT name, population, continent, region
FROM country
WHERE continent = 'Asia' OR continent = 'Europe';
copy
Task

Swipe to start coding

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

Note

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.

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 4. ChapterΒ 3
single

single

close

Awesome!

Completion rate improved to 2.44

bookUsing the OR operator

Swipe to show menu

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.

Here is the syntax of using the OR operator:

SELECT columns
FROM table
WHERE column = 'first_option' OR column = 'second_option';

Let's look at the example:


              
123

            
SELECT name, population, continent, region
FROM country
WHERE continent = 'Asia' OR continent = 'Europe';
copy
Task

Swipe to start coding

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

Note

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.

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!

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