题解 | #返回购买 prod_id 为 BR01 的产品的所有顾客的电子邮件(一)#
返回购买 prod_id 为 BR01 的产品的所有顾客的电子邮件(一)
http://www.nowcoder.com/practice/962b16554fbf4b99a87f4d68020c5bfb
select c.cust_email as cust_email from OrderItems oi left join Orders o on oi.order_num = o.order_num left join Customers c on o.cust_id = c.cust_id where oi.prod_id = 'BR01';