QuerydrillRevenue per product
An SQL exercise from Querydrill. Solve it with a SQL editor in your browser, checked on the rows it returns and again on changed data, and it is checked the moment you submit.
The task
Using order lines, return each product name with its revenue: quantity times price, summed over all its order lines. Products never sold do not appear.
What this exercise teaches
Line-level revenue is quantity times unit price; sum it after the join.
A hint if you get stuck
Join order_items to products, then SUM(qty * price) per product.
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