Course Elementary  21009

Course Introduction：Use PDO mode (PHP data object) to connect and select databases (unified operation of various databases), execute SQL statements and process result sets

Course Intermediate  8374

Course Introduction：Many programmers who have worked for many years still have a very basic understanding of databases. They are confused as soon as they go out for interviews. They don’t understand basic SQL statements, more complex SQL queries, and SQL statement optimization. They don’t even know how to use them. Redis improves system performance and can withstand tens of millions of concurrencies. This set of courses will help you thoroughly understand MySQL locks, execution plans, indexes, MVCC & Redis transactions, cache, breakdown, penetration, avalanche, warm-up, etc., and you can complete all database interviews in one set!

Course Intermediate  4204

Course Introduction：PHP and MySQL database are golden partners. Not only are they free to use, but more importantly, MySQL can be better combined with PHP. PHP also provides a dedicated programming interface for the MySQL database, improving development efficiency.

Course Advanced  10630

Course Introduction：SSDB is a high-performance NoSQL database developed in C/C++ language. It supports KV, list, map(hash), zset(sorted set), qlist(queue) and other data structures. It is used to replace or cooperate with Redis to store billion-level lists. The data.

Course Advanced  10896

Course Introduction：SSDB is a high-performance NoSQL database developed in C/C++ language. It supports KV, list, map(hash), zset(sorted set), qlist(queue) and other data structures. It is used to replace or cooperate with Redis to store billion-level lists. The data.SSDB is stable, used in production environments, and has been used in many Internet companies_From the SSDB Database User Manual

Course Advanced  29310

Course Introduction："Database MySQL Video Tutorial" provides a basic introduction to the database, allowing everyone to first understand the MySQL database, and then explain the DOS operation database.

Course Intermediate  4117

Course Introduction：Redis is the most widely used storage middleware in the field of Internet technology. The understanding and application practice of Redis have become essential skills for mid-to-senior back-end developers today. MySQL is the preferred relational database for most Internet companies. Therefore, programmers cannot only understand the addition, deletion, modification, and query of the database and some simple usage skills. They also need to be proficient in some principles of MySQL to better deal with the problems encountered in actual work.

Course Intermediate  12909

Course Introduction：In an era when various front-end frameworks are flying everywhere, jQuery still shines brightly. Without jQuery, you are not a good front-end. Likewise, it is impossible to become an excellent full-stack developer.

Course Advanced  16123

Course Introduction："Backend Network MySQL Database Video Tutorial" introduces the concept of database, as well as some basic contents commonly used in databases, such as addition, deletion, modification, query, etc. It also has knowledge about database security, such as anti-injection, etc.

Course Intermediate  21484

Course Introduction：PHP is very suitable for rapid development of Web projects, and Web projects are inseparable from the support of databases. PDO is the access abstraction layer of the database, which can provide a unified access interface for all types of databases, making development simpler and operation safer. In particular, PDO preprocessing technology fundamentally eliminates SQL injection attacks. Therefore, this course focuses on the mainstream PDO preprocessing technology and gives you a complete introduction to this development technology.

Course Elementary  18983

Course Introduction：The most commonly used PHP dynamic website development is the MYSQL database. PHP Chinese website's "Daily Sharing of MySQL Database Technology Knowledge" course shares some common PHP MySQL database knowledge every day and explains these common knowledge points in the form of videos. ! From basic to advanced, the difficult points are broken down, each knowledge point takes about 5 minutes, and we strive to be easy to understand and create a small knowledge base of high-quality MySQL databases!

Course Elementary  20453

Course Introduction：PHP array functions allow you to access and manipulate arrays, supporting single-dimensional and multi-dimensional arrays. Array functions are a core part of PHP. No installation is required to use these functions. "PHP Function: Array Array Function Video Explanation" explains the syntax, parameters, return values, etc. of PHP array functions, and provides examples of functions through the PHP editor to help PHP learners better understand and use array functions.

Course Elementary  44672

Course Introduction：This course starts from the shallower to the deeper, explaining the knowledge points related to the MySQL database in detail and complete, and finally forms a complete database programming knowledge system. A course suitable for novices or veterans to review

Course Elementary  3095

Course Introduction：If you have any questions, please send us a message via WeChat: Le-studyg; This course aims to deeply explore how to use the Swoole extension to operate the database connection pool in the Laravel framework. The course will start with basic concepts, introduce the basic principles and usage of Swoole, and then focus on how to integrate with the Laravel framework. Students will learn how to configure and manage database connection pools to improve the performance and concurrency of database operations. The course will also cover actual case studies and best practices to help students better understand and apply this technology. Whether you are a Laravel developer or a developer interested in Swoole connection pool operation database, this course will open new doors for you to learn and practice.

Course Elementary  14131

Course Introduction：PHP string functions belong to the core part of PHP. No installation is required to use these functions. "PHP Function String String Function Video Explanation" explains the syntax, parameters, return values, etc. of PHP string functions, and runs examples of various string functions in the browser through the PHP editor to help PHP learners learn more Good to learn and use string functions.

Course Elementary  2173

Course Introduction：Delphi6 function encyclopedia

Course Intermediate  4715

Course Introduction：There are two main purposes for studying this course: 1. Visual panel layout adapts to the screen 2. Use ECharts to realize histogram display Core Technology: -Based on flexible.js + rem smart large screen adaptation - VScode cssrem plug-in - Flex layout - Less to use - Based on ECharts data visualization display - ECharts histogram data settings - ECharts map introduction

Course Elementary  2164

Course Introduction：Python visualization video series using matplotlib, seaborn, pyecharts, combined with real data sets; this video is reproduced from Bilibili: BV1gz411v7F5

Course Intermediate  5740

Course Introduction：The three most important core technologies in JavaScript are: functions, objects and closures. It can be seen that functions always occupy the core position and are first-class citizens in JavaScript. It can be said that everything in JavaScript comes from functions. .

Course Elementary  23145

Course Introduction：Compared with traditional hard drives or USB flash drives, online network disks realize file storage, access, upload, download, and backup functions.