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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11357

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 17659

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 11373

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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jQuery mouse moves over a square image to a round edge effect code sharing_jquery

Course Introduction：This article mainly introduces the special effect of jQuery mouse switching from a square image to a round edge. The image can be replaced by yourself. It is recommended to everyone. Friends in need can refer to it.

2016-05-16 comment 0 1387

How to implement the image magnifying glass function in JavaScript?

Course Introduction：How does JavaScript implement the image magnifying glass function? In web design, the picture magnifying glass function is often used to display product pictures, artwork details, etc. By hovering the mouse over the image, the image can be enlarged to help users better observe the details. This article will introduce how to use JavaScript to achieve this function and provide code examples. First, we need to prepare a picture element with a magnification effect in HTML. For example, in the following HTML structure, we place a large image in

2023-10-19 comment 0 1334

Why is there no response when right-clicking on a web page in Sogou Browser?

Course Introduction：Why is there no response when right-clicking on a webpage in Sogou Browser? When many friends use search engines like Sogou Browser to browse the web, when they see good-looking pictures or good-looking styles on the webpage, we can press the right button of the mouse on the webpage and then edit the pictures. Save, or view the specific style code. How to solve the problem that Sogou Browser does not respond when right-clicking on the web page. According to the personal experience of the editor of this site and the information found on this site, Sogou Browser does not respond when right-clicking on the web page. This may be caused by a problem with the browser itself. So when we encounter that the right mouse button does not respond, how should we solve this problem? Let’s continue reading. How to solve the problem that the right mouse button does not respond when browsing the web in Sogou Browser? According to this website

2024-01-31 comment 0 1168

How to create image hover details using HTML and CSS?

Course Introduction：Using image hover effects with text details can add extra interactivity to your website. By using a small amount of HTML and CSS, you can transform a still image into an entity with explanatory wording when the user hovers over the image. This tutorial will walk you through developing a simple icon hover effect, including the HTML code and CSS decoration required to achieve the final effect. Whether you are a newbie or an experienced web page creator, this article will provide you with the details you need to enrich your website and achieve vivid photo levitation effects. :Hover Selector CSS's :hover selector is used to select and style an element when the user hovers over it. The :hover selector is used with other selectors to

2023-09-07 comment 0 1088

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 1221

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