Group by Month

How can we calculate order volumes grouped by calendar month?

Advanced⏱ 3 Minutes⭐ 1420 XP

🤔 THE QUESTION

How can we calculate order volumes grouped by calendar month?

💡 WHAT IS IT?

Grouping by extracted month components aggregates transaction counts into monthly cohorts.

🎯 WHAT IS IT USED FOR?

Monthly sales volume reporting, seasonality demand charts, order frequency trends.

💻 EXAMPLE

SELECT
EXTRACT(MONTH FROM order_date) AS order_month,
COUNT(*) AS order_count
FROM orders
GROUP BY EXTRACT(MONTH FROM order_date);

Practice typing production-grade SQL code for Group by Month.