题解 | 95
从 Products 表中检索所有的产品名称以及对应的销售总数
https://www.nowcoder.com/practice/2b289b78de1546f38fd24e17e56f1bec
select
prod_name,
quant_sold
from
Products,
(
select
prod_id,
sum(quantity) as quant_sold
from
OrderItems
group by
prod_id
) as o
where
Products.prod_id = o.prod_id;
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