Course 2454
Course Introduction:This set of courses is based on the design concept and data structure of MySQL index, index usage scenarios, index classification, index usage scenarios, index performance analysis, query optimization, slow query of MySQL index, etc. It mainly describes the solution of MySQL index optimization. It is very suitable for students who have basic knowledge of MySQL or have certain work experience. The course explains how to solve the problem of slow large-volume queries, how to write an efficient SQL, how to optimize query statements, what is the implementation principle of indexes, how to optimize indexes... and many other difficulties and interview points in SQL index optimization.
Course 2425
Course Introduction:If you have any questions, add WeChat: Le-studyg; in the course, we will first understand the background and characteristics of the PHP language, as well as the role and working principle of the PHP interpreter. Next, we will analyze the core components of the PHP interpreter in detail, such as lexical analysis, syntax analysis, virtual machine, etc., and gain an in-depth understanding of its internal implementation mechanism. In addition, the course will also introduce how to use C language to write various modules of the PHP interpreter, including lexical analyzer, syntax analyzer, virtual machine, etc. Through practical projects, students will personally implement a simple PHP interpreter and deepen their understanding of the PHP interpreter source code. Through the study of this course, students will be able to deeply understand the working principle and internal implementation mechanism of the PHP interpreter, and master the methods and techniques of writing PHP interpreters using C language. At the same time, students will also develop their ability to analyze and solve problems, and improve their programming skills and project practice capabilities. Whether you are a beginner who is interested in the PHP language or a developer who wants to have a deeper understanding of the internal mechanisms of the PHP interpreter, this course will provide you with valuable experience and inspiration. Let us explore the mysteries of the PHP interpreter and start the programming journey!
Course 5948
Course Introduction:How to tune SQL according to execution plan under massive data? How does the mysql index system cope with massive data storage? How to design a mysql index with excellent performance under massive data Full analysis of clustered index and non-clustered index of mysql Must-ask nouns in mysql index interview: table return, index coverage, leftmost matching How to optimize indexes for specific SQL scenarios
Course 8496
Course Introduction:Course introduction: 1. Project requirements analysis and detailed program design; 2. Git server construction and project version management; 3. Login, registration, front and back template development; 4. User, classification, article, and website configuration module development records; 5 , Customized interfaces and SMS and email interfaces; 6. Building an environment on the cloud server; 7. Project launch and optimization. After taking this course, you will be able to understand the entire project development process and use the framework to develop your own projects.
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.
Implement filters and pagination using Laravel Eloquent
2023-11-12 18:42:35 0 1 310
Encountered PHPMailer undefined type error (tried using Composer also didn't work)
(以下截图)作曲家img错误没有作曲家img时出现同样的错误目录图片这是代码session_start();//ImportPHPMailerclassesintothegl
2023-11-12 17:35:06 0 1 180
Using Laravel 8's blade asset to display images but loading from resources subfolder
2023-11-09 12:47:02 0 1 314
Composer update gives error phpunit/phpunit
2023-11-08 15:34:22 0 1 309
Course Introduction:手机百度搜索记录怎么彻底清除?手机百度在搜索信息的时候不仅会留下历史浏览记录,还会留有搜索记录,在比较多的时候删除就比较繁琐了,可以彻底清除搜索记录的。很多小伙伴还不知道手机百度搜索记录怎么彻底清除,下面给大家整理了手机百度搜索记录的删除方法,让我们一起来看看吧。手机百度搜索记录怎么彻底清除1、进入百度app主页后,点击右下角的我的选项。
2024-06-27 comment
Course Introduction:1、首先进入抖音极速版页面,点击右上角【搜索】。2、然后进入搜索页面,点击【全部搜索记录】。3、最后在这里就可以看到搜索记录。如果不想要的话,还可以点击下方的【清除全部搜索记录】删除抖音极速版相关搜索。
2024-06-27 comment
Course Introduction:UC浏览器搜索引擎怎么设置百度?UC浏览器支持多种搜索引擎,默认的搜索引擎并不是百度,用户可以自己设置为百度。很多小伙伴还不知道uc浏览器搜索引擎怎么设置百度,下面给大家整理了uc浏览器搜索引擎设置百度的方法攻略,让我们一起来看看吧。uc浏览器搜索引擎怎么设置百度第一步,点击搜索框我们打开UC浏览器,然后我们点击上面的搜索框。2第二步,点击放大镜点击了搜索框之后,就会出现如图所
2024-06-27 comment
Course Introduction:1、第一步就是要进入到历史记录界面,需要打开软件,点击下方图片中的红色方框位置,进入到其他界面中;2、在这个界面中,就可以点击最上方的【历史】进入到历史记录功能界面中;3、在历史功能界面中,我们只需要点击上方的搜索框,在其中搜索我们想要搜索的历史记录就可以了。
2024-06-27 comment
Course Introduction:unix系统中大多数文件是普通文件和目录,这两种类型的文件也是最常使用的,例如/usr目录和它上面的hello.txt文本文件就属于普通文件类型。
2024-06-27 comment 0 811