How can we calculate revenue by month?
Grouping by year and month components with ordered chronological output produces monthly revenue trends.
Executive financial rollups, monthly recurring revenue tracking, fiscal quarter preparation.
SELECT
EXTRACT(YEAR FROM order_date) AS year,
EXTRACT(MONTH FROM order_date) AS month,
SUM(amount) AS revenue
FROM orders
GROUP BY
EXTRACT(YEAR FROM order_date),
EXTRACT(MONTH FROM order_date)
ORDER BY year, month;Practice typing production-grade SQL code for Monthly Revenue.