题解 | 了解 2023 年全年所有商品的盈利情况
了解 2023 年全年所有商品的盈利情况
https://www.nowcoder.com/practice/05cbbb8662c14b46a15cbcb8993d9277
select s.product_id,sum(quantity * unit_price)-sum(quantity * purchase_price) total_profit ,round((avg(unit_price) / purchase_price -1) * 100, 2) profit_margin from sales_orders s join purchase_prices using (product_id) group by s.product_id order by s.product_id

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