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Introduction to SQL

bookThe COUNT() Function

COUNT() is a function that allows you to count rows in a table or count how many rows match certain criteria.

Let's see an example:


              
12

            
SELECT COUNT(name) 
FROM country;
copy

To count the total number of rows in the table, we can use the following syntax:


              
12

            
SELECT COUNT(*)
FROM country;
copy
Task

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Write an SQL query to retrieve the number of rows from the country table where the continent is 'Asia' with a population of over 1000000.

Solution

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SectionΒ 5. ChapterΒ 3
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bookThe COUNT() Function

Swipe to show menu

COUNT() is a function that allows you to count rows in a table or count how many rows match certain criteria.

Let's see an example:


              
12

            
SELECT COUNT(name) 
FROM country;
copy

To count the total number of rows in the table, we can use the following syntax:


              
12

            
SELECT COUNT(*)
FROM country;
copy
Task

Swipe to start coding

Write an SQL query to retrieve the number of rows from the country table where the continent is 'Asia' with a population of over 1000000.

Solution

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Everything was clear?

How can we improve it?

Thanks for your feedback!

close

Awesome!

Completion rate improved to 2.44
SectionΒ 5. ChapterΒ 3
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