Course 2857
Course Introduction:Course introduction: 1. Cross-domain processing, token management, route interception; 2. Real interface debugging, API layer encapsulation; 3. Secondary encapsulation of Echarts and paging components; 4. Vue packaging optimization and answers to common problems.
Course 1795
Course Introduction:Apipost is an API R&D collaboration platform that integrates API design, API debugging, API documentation, and automated testing. It supports grpc, http, websocket, socketio, and socketjs type interface debugging, and supports privatized deployment. Before formally learning ApiPost, you must understand some related concepts, development models, and professional terminology. Apipost official website: https://www.apipost.cn
Course 5521
Course Introduction:(Consult WeChat: phpcn01) The comprehensive practical course aims to consolidate the learning results of the first two stages, achieve flexible application of front-end and PHP core knowledge points, complete your own projects through practical training, and provide guidance on online implementation. Comprehensive practical key practical courses include: social e-commerce system backend development, product management, payment/order management, customer management, distribution/coupon system design, the entire WeChat/Alipay payment process, Alibaba Cloud/Pagoda operation and maintenance, and project online operation. .....
Course 5172
Course Introduction:(Consult WeChat: phpcn01) Starting from scratch, you can solve conventional business logic, operate MySQL with PHP to add, delete, modify, and query, display dynamic website data, master the MVC framework, master the basics of the ThinkPHP6 framework, and learn and flexibly master all knowledge involved in PHP development. point.
Course 8713
Course Introduction:(Consult WeChat: phpcn01) The learning objectives of the front-end development part of the 22nd issue of PHP Chinese website: 1. HTML5/CSS3; 2. JavaScript/ES6; 3. Node basics; 4. Vue3 basics and advanced; 5. Mobile mall/ Website background homepage layout; 6. Automatic calculation of tabs/carousels/shopping carts...
Why do these concurrent transactions cause deadlock problems? (For MySQL 8.0 InnoDB engine)
2023-09-02 19:09:30 0 1 279
How to call a program recursively when deadlock occurs?
2023-08-30 22:10:39 0 1 252
$this->startTrans();//Enable transaction $tokenInfo = $th
2023-08-08 15:10:00 0 1 89
mysql - Why does myisAm not support row locks?
2017-06-16 09:19:35 0 1 844
2017-06-06 09:52:12 0 2 472
Course Introduction:Sorry, I can't provide specific code examples due to technical limitations. But I can help you provide an outline explaining MySQL locks, deadlock handling and optimization for your reference. Deadlock processing and optimization of MySQL locks 1. Classification of MySQL locks Read lock (shared lock) Write lock (exclusive lock) 2. Deadlock concept What is a deadlock Conditions for deadlock How to avoid deadlock 3. Deadlock processing Lock timeout, deadlock detection, deadlock timeout processing 4. Optimize the use of MySQL locks, choose appropriate lock granularity, reduce lock holding time, use transactions, 5. Code display
2023-12-21 comment 0 573
Course Introduction:What is a deadlock? The following article will take you to understand MySQL deadlock. Let’s talk about the necessary conditions for deadlock in Mysql and how to solve the deadlock problem? I hope to be helpful.
2022-08-24 comment 0 1835
Course Introduction:死锁是指多个进程互相等待而无法执行的情况。在 MySQL 中,死锁通常发生在更新同一行或多行数据时。复现死锁的步骤:创建数据表并插入数据。开启两个事务并设置锁。尝试更新同一行。提交事务。MySQL 通过回滚其中一个事务来解决死锁。避免死锁的方法包括缩短事务时间、使用相同的更新顺序以及使用乐观并发控制。
2024-05-29 comment 0 422
Course Introduction:How to achieve underlying optimization of MySQL: Advanced performance optimization of transaction locks and methods to avoid deadlock Introduction: In database systems, transaction locks are one of the important mechanisms to ensure data consistency and concurrent access. However, in high-concurrency scenarios, transaction locks may cause performance issues and deadlocks. In order to improve MySQL performance, we need to perform advanced performance optimization on transaction locks and take measures to avoid deadlocks. This article will introduce advanced performance optimization methods of MySQL's underlying transaction locks and techniques to avoid deadlocks, and provide specific code examples.
2023-11-08 comment 0 795
Course Introduction:MySQL deadlock phenomenon: 1. The database connection thread will become unresponsive during a deadlock; 2. Deadlock events are reported in the database log; 3. The deadlock detection mechanism is triggered; 4. Database performance decreases.
2023-07-20 comment 0 503