https://leetcode-cn.com/problems/customers-who-never-order/
从不订购的客户
select Customers.Name as Customers from Customers where Customers.Id not in (select Orders.CustomerId from Orders);
个人理解:作为一个sql入门白痴,not in是个好东西
2023-12-27 20:10:27
https://leetcode-cn.com/problems/customers-who-never-order/
从不订购的客户
select Customers.Name as Customers from Customers where Customers.Id not in (select Orders.CustomerId from Orders);
个人理解:作为一个sql入门白痴,not in是个好东西