题解 | 淘宝店铺的实际销售额与客单价
淘宝店铺的实际销售额与客单价
https://www.nowcoder.com/practice/ce116419a1f141568094b5eab70e5ce8
select round(sum(sales_num*goods_price),3) as sales_total,round(sum(sales_num*goods_price)/count(distinct user_id),3)as per_trans from sales_tb a left join goods_tb b on a.goods_id = b.goods_id

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