题解 | #从 Products 表中检索所有的产品名称#
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,sum(quantity) quant_sold from Products left join OrderItems on OrderItems.prod_id=Products.prod_id group by prod_name ;