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...
MySQL InnoDB does not free disk space after deleting data rows from table
2023-10-15 00:02:19 0 2 222
How to execute second query when first query has no results - MYSQL
2023-09-16 16:12:30 0 1 694
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MAX(CONVERT(column, TIME(3))) returns different values from mysql client than JPA native query
2023-09-16 12:15:25 0 1 712
JavaScript implements smooth transition from thumbnail to full-width image page
2023-09-15 22:09:37 0 1 484
Course Introduction:The reason for conducting this research is mainly to address two unsolved doubts encountered before: a. There is a system online. The semi-synchronous state often changes from semi-synchronous to asynchronous, and then immediately returns to semi-synchronous. The specific reason is unknown. Although I have guessed it before, I am still not completely sure. b. Some time ago, due to business scenario requirements, we conducted a cross-machine room asynchronous replication test. When mysql write qps is very high, it is found that many logs have not had time to be sent to the slave library. That is, the speed of binlog log generation in the main library is greater than the speed of transmission to the slave library. This speed difference always exists, so when the main library continues to be high When binlog was generated under pressure, more and more binlogs were not sent to the slave library, but the network traffic at that time
2024-01-05 comment 0 722
Course Introduction:The meaning of mysql master-slave synchronization is backup. The master library (Master) synchronizes the writes in its own library to its slave library (Slave). When some unpredictable conditions occur in the master library and the entire server cannot be used, due to There is also a copy of the data in the slave database, so the data can be restored quickly without causing or reducing data loss.
2020-10-05 comment 0 4663
Course Introduction:This article brings you relevant knowledge about MySQL, mainly sorting out issues related to semi-synchronous replication configuration. In semi-synchronous mode, the main database transaction must ensure that at least one slave database receives the log before it can be completed. Therefore, you can It is guaranteed that when the main database goes down, the submitted transactions have been transferred to the slave database to ensure that the data is not lost. Let’s take a look at it together. I hope it will be helpful to everyone.
2022-07-04 comment 0 1794
Course Introduction:MySQL 主从同步是一种数据复制机制,可将主服务器的数据更改复制到从服务器。 实现步骤包括: 创建复制用户,启用二进制日志记录,获取二进制日志信息,在从服务器上创建复制通道,检查从服务器状态。
2024-05-22 comment 0 448
Course Introduction:Mysql master-slave synchronization skip error method: 1. Skip the specified number of transactions, the code is [mysql>SET GLOBAL SQL_SLAVE_SKIP..]; 2. Modify the mysql configuration file and use the [slave_skip_errors] parameter to skip all errors.
2021-01-06 comment 0 5855