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

leetcode 183. Customers Who Never Order的更多相关文章

  1. 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 ...

  2. [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 qu ...

  3. 【SQL】183. Customers Who Never Order

    Suppose that a website contains two tables, the Customers table and the Orders table. Write a SQL qu ...

  4. 183. Customers Who Never Order

    Suppose that a website contains two tables, the Customers table and the Orders table. Write a SQL qu ...

  5. [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 qu ...

  6. LeetCode - Customers Who Never Order

    Description: Suppose that a website contains two tables, the Customers table and the Orders table. W ...

  7. LeetCode——Customers Who Never Order(灵活使用NOT IN以及IN)

    Suppose that a website contains two tables, the Customers table and the Orders table. Write a SQL qu ...

  8. [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 qu ...

  9. LeeCode(Database)-Customers Who Never Order

    Suppose that a website contains two tables, the Customers table and the Orders table. Write a SQL qu ...

随机推荐

  1. elasticsearch 复杂查询小记

    以下接口调用都基于5.5版本 JSON 文档格式 { "_index": "zipkin-2017-09-06", "_type": &qu ...

  2. ubuntu 14.04 lamp 安装与配置

    一.安装apache 1.打开终端:Ctrl+Alt+T sudo apt-get update 2.通过apt-get方式安装Apache: sudo apt-get install apache2 ...

  3. iframe引入百度地图显示企业位置

    步骤一:打开下面这个地址:http://api.map.baidu.com/lbsapi/creatmap/index.html     步骤二:定位中心点     在打开的页面左侧,输入企业的详细地 ...

  4. js判断各种浏览器

    <script type="text/javascript"> if (navigator.appName.indexOf("Microsoft Intern ...

  5. xgCalendar在ASP.NET中的使用

    1.将wdCalendar文件夹考入项目中 2.在页面中添加引用,见3中head标签中定义 3.配置xgCalendar,两段代码放在一起就是完整的页面 body> <div> &l ...

  6. PHP MySQL Order By

    ORDER BY 关键词用于对记录集中的数据进行排序. ORDER BY 关键词 ORDER BY 关键词用于对记录集中的数据进行排序. ORDER BY 关键词默认对记录进行升序排序. 如果你想降序 ...

  7. Python XML解析

    什么是XML? XML 指可扩展标记语言(eXtensible Markup Language). 你可以通过本站学习XML教程 XML 被设计用来传输和存储数据. XML是一套定义语义标记的规则,这 ...

  8. Noip往年题目整理

    Noip往年题目整理 张炳琪 一．历年题目 按时间倒序排序 年份 T1知识点 T2知识点 T3知识点 得分 总体 2016day1 模拟 Lca,树上差分 期望dp 144 挺难的一套题目,偏思维难度 ...

  9. Python - Django - ORM 操作数据

    查询数据(查询管理员): app01/models.py 中定义的类,也就是创建的表 from django.db import models # 类必须继承 models.Model class A ...

  10. HTML(具体代码看笔记本)

    参考:https://www.cnblogs.com/liwenzhou/p/7988087.html 一, HTML   1. HTML结构   2. 标签    1. 块儿级标签     h1~h ...