Table of Contents
回复内容:
Home Backend Development PHP Tutorial laravel - php向mysql执行insert时,提示“mysql duplicate key”,如何处理?

laravel - php向mysql执行insert时,提示“mysql duplicate key”,如何处理?

Jun 06, 2016 pm 08:41 PM
laravel mysql php

前提:【laravel4】服务器端提供接口全部采用异步方式调用,数据表有唯一键
场景:在并发请求处理中,mysql数据库会出现“ Integrity constraint violation: 1062 Duplicate entry ”,如两个用户同时请求注册email

<code>$ret = User::create(array(
    'email' => "nick@nick.com"
));
</code>
Copy after login
Copy after login

我想让这两个并发请求都成功返回,并返回Email,如何规避掉键值重复。
目前有以下几种:
1)插入前,使用select查询,但这个并不能解决问题。
2)使用insert ignore
3)使用insert on duplicate key
4)直接try catch
哪种处理方案会好些?

回复内容:

前提:【laravel4】服务器端提供接口全部采用异步方式调用,数据表有唯一键
场景:在并发请求处理中,mysql数据库会出现“ Integrity constraint violation: 1062 Duplicate entry ”,如两个用户同时请求注册email

<code>$ret = User::create(array(
    'email' => "nick@nick.com"
));
</code>
Copy after login
Copy after login

我想让这两个并发请求都成功返回,并返回Email,如何规避掉键值重复。
目前有以下几种:
1)插入前,使用select查询,但这个并不能解决问题。
2)使用insert ignore
3)使用insert on duplicate key
4)直接try catch
哪种处理方案会好些?

那就要看你的需求了,出现Duplicate entry这个错误是因为主键有重复,如果是以uid为主键的话,那么要考虑uid生成算法是否有问题,或者是否重复注册了

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
1 months ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
1 months ago By 尊渡假赌尊渡假赌尊渡假赌
Will R.E.P.O. Have Crossplay?
1 months ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

PHP: Handling Databases and Server-Side Logic PHP: Handling Databases and Server-Side Logic Apr 15, 2025 am 12:15 AM

PHP uses MySQLi and PDO extensions to interact in database operations and server-side logic processing, and processes server-side logic through functions such as session management. 1) Use MySQLi or PDO to connect to the database and execute SQL queries. 2) Handle HTTP requests and user status through session management and other functions. 3) Use transactions to ensure the atomicity of database operations. 4) Prevent SQL injection, use exception handling and closing connections for debugging. 5) Optimize performance through indexing and cache, write highly readable code and perform error handling.

PHP's Purpose: Building Dynamic Websites PHP's Purpose: Building Dynamic Websites Apr 15, 2025 am 12:18 AM

PHP is used to build dynamic websites, and its core functions include: 1. Generate dynamic content and generate web pages in real time by connecting with the database; 2. Process user interaction and form submissions, verify inputs and respond to operations; 3. Manage sessions and user authentication to provide a personalized experience; 4. Optimize performance and follow best practices to improve website efficiency and security.

PHP and Python: Code Examples and Comparison PHP and Python: Code Examples and Comparison Apr 15, 2025 am 12:07 AM

PHP and Python have their own advantages and disadvantages, and the choice depends on project needs and personal preferences. 1.PHP is suitable for rapid development and maintenance of large-scale web applications. 2. Python dominates the field of data science and machine learning.

Laravel's Primary Function: Backend Development Laravel's Primary Function: Backend Development Apr 15, 2025 am 12:14 AM

Laravel's core functions in back-end development include routing system, EloquentORM, migration function, cache system and queue system. 1. The routing system simplifies URL mapping and improves code organization and maintenance. 2.EloquentORM provides object-oriented data operations to improve development efficiency. 3. The migration function manages the database structure through version control to ensure consistency. 4. The cache system reduces database queries and improves response speed. 5. The queue system effectively processes large-scale data, avoid blocking user requests, and improve overall performance.

Centos install mysql Centos install mysql Apr 14, 2025 pm 08:09 PM

Installing MySQL on CentOS involves the following steps: Adding the appropriate MySQL yum source. Execute the yum install mysql-server command to install the MySQL server. Use the mysql_secure_installation command to make security settings, such as setting the root user password. Customize the MySQL configuration file as needed. Tune MySQL parameters and optimize databases for performance.

How to install mysql in centos7 How to install mysql in centos7 Apr 14, 2025 pm 08:30 PM

The key to installing MySQL elegantly is to add the official MySQL repository. The specific steps are as follows: Download the MySQL official GPG key to prevent phishing attacks. Add MySQL repository file: rpm -Uvh https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm Update yum repository cache: yum update installation MySQL: yum install mysql-server startup MySQL service: systemctl start mysqld set up booting

MySQL vs. Other Databases: Comparing the Options MySQL vs. Other Databases: Comparing the Options Apr 15, 2025 am 12:08 AM

MySQL is suitable for web applications and content management systems and is popular for its open source, high performance and ease of use. 1) Compared with PostgreSQL, MySQL performs better in simple queries and high concurrent read operations. 2) Compared with Oracle, MySQL is more popular among small and medium-sized enterprises because of its open source and low cost. 3) Compared with Microsoft SQL Server, MySQL is more suitable for cross-platform applications. 4) Unlike MongoDB, MySQL is more suitable for structured data and transaction processing.

PHP: An Introduction to the Server-Side Scripting Language PHP: An Introduction to the Server-Side Scripting Language Apr 16, 2025 am 12:18 AM

PHP is a server-side scripting language used for dynamic web development and server-side applications. 1.PHP is an interpreted language that does not require compilation and is suitable for rapid development. 2. PHP code is embedded in HTML, making it easy to develop web pages. 3. PHP processes server-side logic, generates HTML output, and supports user interaction and data processing. 4. PHP can interact with the database, process form submission, and execute server-side tasks.

See all articles