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题解 | #返回购买 prod_id 为 BR01 的产品的所有顾客的电子邮件（一）#

SELECT c.cust_email FROM Customers c, (SELECT a.prod_id,a.order_num,b.cust_id FROM OrderItems a INNER JOIN Orders b ON a.order_num=b.order_num WHERE a...

Mysql

2022-03-11

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