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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11396

Course Introduction："Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.

Shangxuetang MySQL video tutorial

Course Advanced 17707

Course Introduction："Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.

Band of Brothers front-end example display video tutorial

Course Advanced 11401

Course Introduction："Brothers Band Front-end Example Display Video Tutorial" introduces examples of HTML5 and CSS3 technologies to everyone, so that everyone can become more proficient in using HTML5 and CSS3.

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Ways to fix issue 2003 (HY000): Unable to connect to MySQL server 'db_mysql:3306' (111)

I recently tried to containerize my FastAPIPython server (also for replication/doubling purposes). Before, I had just a MySQL server in a Docker container and everything was fine, but when I also made my web server a service, it couldn't connect to the MySQL server, so now the application doesn't work. Below is the code snippet of the server database initialization connector in the application fromfastapiimportFastAPIimportmysql.connectorapp

2023-09-05 11:18:47

Experiment with sorting after query limit

So this is my first question here, please forgive me if something is wrong. I'm trying to make a sort query based on constraints. So there is a Customers table with 90 records. I want to first perform a query limited to 3 records, and then sort the results of this query by a column called ContactName. I think this might be a nested query. Nested queries run fine in SQLServer, but don't know how to implement it in MySQL. Limit query: Select*fromcustomerslimit

2023-09-05 14:46:42

CSS Grid: Create new row when child content overflows column width

I have a two column layout based on CSS grid. When the content of the second column exceeds 1fr I want to create a new row. As it currently stands, the content simply overflows the column. One requirement of this layout is that the items in the right menu column are in one row. I achieve this with: .right-menu{...grid-auto-flow:columndense;...} If I remove the grid-auto-flow attribute, the overflow stops. However, the items are now stacked into multiple rows, which is not what I want. I also tried converting .ri

2023-09-05 15:18:28

PHP full text search functionality using AND, OR and NOT operators

Newbie question: I'm trying to implement a full text search on a search string using php and eloquent. $searchstring="+(victimsuspect)+crime-covid";$searchresult=RssItem::whereRaw("MATCH(description)AGAINST('$searchstring'INBOOLEANMODE)")->ge

2023-09-05 15:06:32

Shortest way to convert all PHP types to string

I'm writing a general system that I hope can one day be applied to fields like medicine (i.e. it's "scientific"). I think the best way is to represent all the data in php with strings (true will be "true", false will be "false" and so on). The reason for this is that in php any value has a unique string representation (such as the php code itself). I post this question to speed up the design process of this program. Some values are easily converted to strings: numbers, booleans, etc. Some are not easy: objects, arrays, resources. I think the transfer object and

2023-09-05 15:34:44

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How to build an online auction system using WebMan technology

Course Introduction：How to use WebMan technology to build an online auction system Introduction: With the rapid development of the Internet, online auctions have become one of the important ways for people to buy and sell goods. In order to meet this growing demand, many people have begun to pay attention to how to use WebMan technology to build an efficient, stable and secure online auction system. This article will introduce how to use WebMan technology to implement a Web-based auction system and provide corresponding code examples. 1. Technology Selection The construction of an online auction system involves a variety of technologies, such as

2023-08-26 comment 0 705

Implementing high-concurrency online auction system based on Swoole

Course Introduction：High-concurrency online auction system based on Swoole With the advent of the Internet era, the e-commerce industry is booming, and various online trading platforms emerge in endlessly. Among them, the online auction system is an area that has attracted much attention and favor, bringing people more trading opportunities and convenience. However, in the face of huge user concurrency and high response requirements, how to ensure system stability and performance has become an important issue. Swoole is an asynchronous, parallel, high-performance network communication engine based on PHP. It provides a very rich

2023-08-08 comment 0 1202

How to develop a simple online auction system using Go language

Course Introduction：How to develop a simple online auction system in Go language With the rise of e-commerce, more people are beginning to buy and sell goods, and online auction systems are becoming more and more popular. In this article, we will learn how to develop a simple online auction system using Go language. 1. Project planning and requirements analysis Before starting to write code, we need to carry out project planning and requirements analysis. The basic functions of the auction system should include: User registration and login functions: Users can register an account and log in to the system. Product release function: use

2023-11-20 comment 0 674

How to install win7 operating system on computer

Course Introduction：Among computer operating systems, WIN7 system is a very classic computer operating system, so how to install win7 system? The editor below will introduce in detail how to install the win7 system on your computer. 1. First download the Xiaoyu system and reinstall the system software on your desktop computer. 2. Select the win7 system and click "Install this system". 3. Then start downloading the image of the win7 system. 4. After downloading, deploy the environment, and then click Restart Now after completion. 5. After restarting the computer, the Windows Manager page will appear. We choose the second one. 6. Return to the computer pe interface to continue the installation. 7. After completion, restart the computer. 8. Finally come to the desktop and the system installation is completed. One-click installation of win7 system

2023-07-16 comment 0 1246

php-insertion sort

Course Introduction：:This article mainly introduces php-insertion sort. Students who are interested in PHP tutorials can refer to it.

2016-08-08 comment 0 1103

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