Products 表中检索所有的产品名称以及对应的销售总数
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,
(
select
sum(quantity) as quant_sold
from
OrderItems
where
OrderItems.prod_id = Products.prod_id
group by
OrderItems.prod_id
)
from
Products
