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Leer Using the OR operator | Advanced Data Filtering
Introduction to SQL
course content

Cursusinhoud

Introduction to SQL

Introduction to SQL

1. Retrieving Data
2. Sorting Retrieved Data
3. Filtering Data
4. Advanced Data Filtering
5. Aggregate Functions

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Using 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:

sql

Let's look at the example:

123
SELECT name, population, continent, region FROM country WHERE continent = 'Asia' OR continent = 'Europe';
copy

Here is the country table we are working with:

Taak

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.

Oplossing

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Was alles duidelijk?

Hoe kunnen we het verbeteren?

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Sectie 4. Hoofdstuk 3
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book
Using 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:

sql

Let's look at the example:

123
SELECT name, population, continent, region FROM country WHERE continent = 'Asia' OR continent = 'Europe';
copy

Here is the country table we are working with:

Taak

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.

Oplossing

Switch to desktopSchakel over naar desktop voor praktijkervaringGa verder vanaf waar je bent met een van de onderstaande opties
Was alles duidelijk?

Hoe kunnen we het verbeteren?

Bedankt voor je feedback!

Sectie 4. Hoofdstuk 3
Switch to desktopSchakel over naar desktop voor praktijkervaringGa verder vanaf waar je bent met een van de onderstaande opties
Onze excuses dat er iets mis is gegaan. Wat is er gebeurd?
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