【LeetCode 183. Customers Who Never Order (从不订购的客户)】的更多相关文章

LeetCode 183. Customers Who Never Order (从不订购的客户)

题目标签: 题目给了我们 Customers 和 Orders 两个表格,让我们找到 从没订购过的客户. 首先从Orders 得到 订购过的CustomerId,然后再去Customers 里找 没有出现过的 Id,返回名字. Java Solution: Runtime:  264 ms, faster than 53 % Memory Usage: N/A 完成日期:06/01/2019 关键点:NOT IN # Write your MySQL query statement below…

leetcode 183. Customers Who Never Order

select Name as Customers from Customers where Id not in (select CustomerId from Orders);…

[SQL]LeetCode183. 从不订购的客户 | Customers Who Never Order

Suppose that a website contains two tables, the Customers table and the Orders table. Write a SQL query to find all customers who never order anything. Table: Customers. +----+-------+ | Id | Name | +----+-------+ | 1 | Joe | | 2 | Henry | | 3 | Sam…

LeetCode：183.从不订购的客户

题目链接:https://leetcode-cn.com/problems/customers-who-never-order/ 题目 某网站包含两个表 Customers 表和 Orders 表.编写一个 SQL 查询,找出所有从不订购任何东西的客户. Customers 表: +----+-------+ | Id | Name | +----+-------+ | 1 | Joe | | 2 | Henry | | 3 | Sam | | 4 | Max | +----+-------+…

183. Customers Who Never Order

Suppose that a website contains two tables, the Customers table and the Orders table. Write a SQL query to find all customers who never order anything. Table: Customers. +----+-------+ | Id | Name | +----+-------+ | 1 | Joe | | 2 | Henry | | 3 | Sam…

力扣（LeetCode）从不订购的客户-数据库题 个人题解

SQL架构 某网站包含两个表,Customers 表和 Orders 表.编写一个 SQL 查询,找出所有从不订购任何东西的客户. Customers 表: +----+-------+ | Id | Name | +----+-------+ | 1 | Joe | | 2 | Henry | | 3 | Sam | | 4 | Max | +----+-------+ Orders 表: +----+------------+ | Id | CustomerId | +----+------…

sql 183. 从不订购的客户

SQL架构 某网站包含两个表,Customers 表和 Orders 表.编写一个 SQL 查询,找出所有从不订购任何东西的客户. Customers 表: +----+-------+ | Id | Name | +----+-------+ | 1 | Joe | | 2 | Henry | | 3 | Sam | | 4 | Max | +----+-------+ Orders 表: +----+------------+ | Id | CustomerId | +----+------…

[LeetCode] 183. Customers Who Never Order_Easy tag: SQL

Suppose that a website contains two tables, the Customers table and the Orders table. Write a SQL query to find all customers who never order anything. Table: Customers. +----+-------+ | Id | Name | +----+-------+ | 1 | Joe | | 2 | Henry | | 3 | Sam…

【SQL】183. Customers Who Never Order

Suppose that a website contains two tables, the Customers table and the Orders table. Write a SQL query to find all customers who never order anything. Table: Customers. +----+-------+ | Id | Name | +----+-------+ | 1 | Joe | | 2 | Henry | | 3 | Sam…

[LeetCode] Customers Who Never Order 从未下单订购的顾客

Suppose that a website contains two tables, the Customers table and the Orders table. Write a SQL query to find all customers who never order anything. Table: Customers. +----+-------+ | Id | Name | +----+-------+ | 1 | Joe | | 2 | Henry | | 3 | Sam…