SQL GROUP BY Keyword
GROUP BY
The GROUP BY
command is used to group the result set (used with aggregate functions: COUNT, MAX, MIN, SUM,
AVG).
The following SQL lists the number of customers in each country:
The following SQL lists the number of customers in each country, sorted high to low:
Example
SELECT COUNT(CustomerID), Country
FROM Customers
GROUP BY Country
ORDER BY COUNT(CustomerID) DESC;
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