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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11314

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 17628

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 11330

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 use PHP to implement the page template function of CMS system

Course Introduction：How to use PHP to implement the page template function of a CMS system. With the development of the Internet, content management systems (CMS) play an important role in website development. The CMS system separates the page content from the design style through the template function, making it convenient for website administrators to manage and modify the page. This article will introduce how to use PHP to implement the page template function of the CMS system and provide corresponding code examples. 1. Create a file structure First, we need to create a basic file structure to store the page templates and related files of the CMS system.

2023-08-04 comment 0 807

Efficient workflow for secondary development of Java Hikvision SDK

Course Introduction：Introduction to the efficient workflow of secondary development of Java Hikvision SDK: In the current intelligent society, monitoring systems play an increasingly important role. As a leading domestic surveillance equipment supplier, Hikvision’s SDK provides powerful functions and interfaces, which is very suitable for secondary development. This article will introduce the efficient workflow of Java Hikvision SDK, and show how to perform secondary development through code examples. 1. Preparation work to download and install Hikvision SDK: Download and install the SDK from the Hikvision official website. Import SDK into the project: In Ja

2023-09-06 comment 0 1413

Moutai Group and Huawei have reached strategic cooperation to jointly build a model base for smart wine making

Course Introduction：According to news from this website on August 28, Huawei announced today that on August 27, Moutai Group and Huawei signed a deepening strategic cooperation agreement at the Moutai International Hotel. The two parties will deepen the "Smart Moutai" project and explore industrial Internet innovation in the liquor industry. Pragmatic cooperation in application, modern management and construction to achieve win-win development. According to the agreement, the two parties will continue to deepen cooperation in ICT fields such as Moutai Cloud and park networks based on their respective advantages, and jointly build Moutai smart parks, digital transformation model sites for the liquor industry, and industry information technology application innovation demonstration cases to create green, low-carbon, It is an energy-saving smart wine-making benchmark base and industrial Internet platform, and continues to optimize the integrated development ecology of the industrial Internet. Actively deepen corporate management, supply chain digital management and talent training, etc.

2023-09-01 comment 0 621

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 1195

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 1052

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