当前位置:网站首页>Delete duplicate email
Delete duplicate email
2022-07-01 01:53:00 【Hades hadir】


# Please write a DELETE statement and DO NOT write a SELECT statement.
# Write your MySQL query statement below
delete p1 from Person p1,
Person p2
where p1.id > p2.id
and p1.email = p2.email;
边栏推荐
- 【JS给元素添加属性:setAttribute;classList.remove;classList.add;】
- 工作6年,来盘点一下职场人混迹职场的黄金法则
- Neo4j installation, operation, project construction and function realization
- How to maintain efficient collaboration in remote office and achieve stable growth of projects | community essay solicitation
- php将二维数组元素转为键值对
- 如何学习和阅读代码
- 删除重复的电子邮箱
- C#生成putty格式的ppk文件(支持passphrase)
- Lecun, a Turing Award winner, pointed out that the future of AI lies in self-learning, and the company has embarked on the journey
- [JS adds attributes to elements: setAttribute; classlist.remove; classlist.add;]
猜你喜欢

【2022年】江西省研究生数学建模方案、代码

Video tutorial | Chang'an chain launched a series of video tutorial collections (Introduction)

FL Studio20.9水果软件高级中文版电音编曲

electron之坑addon

How does ZABBIX configure alarm SMS? (alert SMS notification setting process)

New opportunities for vr/ar brought by metauniverse

测试必备工具-Postman实战教程

(翻译)实时内联验证更容易让用户犯错的原因

数据探索电商平台用户行为流失分析

With regard to the white box test, you have to master these skills~
随机推荐
【JS】【掘金】获取关注了里不在关注者里的人
laravel 事件 & 订阅
Lecun, a Turing Award winner, pointed out that the future of AI lies in self-learning, and the company has embarked on the journey
The personal test is effective, and the JMeter desktop shortcut is quickly created
Laravel event & subscription
测试必备工具—Postman实战教程
go导入自建包
Clickhouse 消除由group by产生的间隙
工厂+策略模式
laravel 事件 & 监听
[stack] 921 Minimum Add to Make Parentheses Valid
MYSQL 数据库查看磁盘占用情况
Mysql database foundation: process control
For the sustainable development of software testing, we must learn to knock code?
What will Web3 bring in the future?
3500 word summary: a complete set of skills that a qualified software testing engineer needs to master
Video tutorial | Chang'an chain launched a series of video tutorial collections (Introduction)
P6773 [NOI2020] 命运(dp、线段树合并)
(翻译)使用眉状文本提高标题点击率
7-2 拼题A打卡奖励 dp