Sql练习搞起来！！！

收集的一些sql的题

not in解法 子查询
select customers.name as 'Customers'
from customers
where customers.id not in
(
select customerid from orders
);

标签：起来,练习,customers,customerid,sql,Sql,orders,select
来源： https://www.cnblogs.com/wzz1999/p/16214538.html