Course Content
Introduction to SQL
Introduction to SQL
The 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:
SELECT COUNT(name) FROM country;
To count the total number of rows in the table, we can use the following syntax:
SELECT COUNT(*) FROM country;
Here is the country
table we are working with:
Swipe to show code editor
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.
Thanks for your feedback!
The 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:
SELECT COUNT(name) FROM country;
To count the total number of rows in the table, we can use the following syntax:
SELECT COUNT(*) FROM country;
Here is the country
table we are working with:
Swipe to show code editor
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.
Thanks for your feedback!