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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11302

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 17615

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 11321

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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HTML, CSS and jQuery: Techniques for achieving image transparency switching effects

Course Introduction：HTML, CSS and jQuery: Tips for realizing image transparency switching effects In modern web design, image transparency switching effects have become a very common design element. By controlling the transparency changes of images, you can add dynamic effects to web pages and improve user experience. To achieve such special effects, we can use HTML, CSS and jQuery. The specific techniques will be introduced below, with code examples attached. HTML part First, we need to create pictures and corresponding control buttons in HTML

2023-10-25 comment 0 1390

HTML, CSS and jQuery: Techniques for implementing image page turning effects

Course Introduction：HTML, CSS and jQuery: Tips for implementing image flipping effects In modern web design, image flipping effects are a common and popular element. Through image switching and transition effects, web pages can be made more dynamic and attractive. This article will introduce how to use HTML, CSS and jQuery to implement image page turning effects, and provide specific code examples. HTML structure First, create a container in HTML to wrap the content of the image, and set a unique ID so that it can be used in CSS and jQu

2023-10-26 comment 0 1588

A closer look at how jQuery focus maps work

Course Introduction：jQuery focus image is a commonly used web design element that attracts users' attention by automatically rotating images and improves the visual effect of the page. It is often used for carousel display on the homepage of the website, advertising space display, etc. This article will provide an in-depth look at how jQuery focus maps work and provide specific code examples. First, let’s understand the basics of how jQuery focus maps work. The focus map usually contains a picture container and a navigation button container. The picture container is used to display the picture content, and the navigation button container is used to control the picture cutting.

2024-02-27 comment 0 1191

Methods and techniques on how to achieve image carousel effects through pure CSS

Course Introduction：Methods and techniques on how to achieve image carousel effects through pure CSS. In modern web design, image carousel effects are often used to display multiple images or advertisements in turn. There are many ways to achieve an image carousel effect, one of the common ways is to use CSS animation. This article will introduce methods and techniques on how to achieve image carousel effects through pure CSS, and provide specific code examples. 1. HTML structure First, the image elements for carousel need to be prepared in HTML. Here is a simple HTML structure example: &l

2023-10-18 comment 0 1601

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 1188

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