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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11322

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 17629

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 11334

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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Honor MagicPad 2 tablet's 'productivity” function warmed up, billed as 'PC-level office experience”

Course Introduction：According to news from this site on July 8, Honor today warmed up the "productivity" function of the MagicPad 2 tablet, which the official said can achieve a "PC-level office experience." As can be seen from the official warm-up poster, the "AIPC-level productivity" function of the Honor MagicPad2 tablet is suitable for notes, tables, documents, meetings and other scenarios, and supports word, PPT, Excel and other text editing work. Currently, various manufacturers are providing "productivity" functions for tablet upgrades. Xiaomi and Huawei have launched PC-level WPS applications on tablets. Honor also launched the "Honor Documents" App on the first-generation MagicPad tablet last year. According to reports, the application supports document editing, handwriting input, file collection, document splicing and other functions. Honor MagicPa

2024-07-12 comment 0 1182

Tencent QQ browser launches 'Tool Rights Card' on PC: supports format conversion, text extraction and other functions, with a minimum monthly payment of only 6 yuan

Course Introduction：According to news from this site on January 29, Tencent QQ Browser previously launched a tool rights card on the mobile phone, and now extends the scope of application of some rights to the PC side. The price is 10 yuan per month, and the continuous monthly subscription is 6 yuan. After activation, users can enjoy limited-term tool value-added services provided by Tencent or third parties in the QQ browser software. The content of the rights card attached to this site: Convert PDF to Office PDF page Edit PDF page Extract PDF image Extract PDF document Encrypt PDF Delete watermark PDF Add watermark Convert PDF in batches PDF Convert long image PDF Convert image page by page PDF Extract table Word font Word page edit Word Delete watermark Word Add watermark, scan QR code to convert Word document, slim down, extract text, extract form, scan ID test paper, and handwrite old photos.

2024-01-29 comment 0 1352

3000 cost-effective mobile phone recommendations (these 3 mobile phones are worth buying)

Course Introduction：Which mobile phones costing around 3,000 yuan are cost-effective? At about 3,000 yuan, cost-effective mobile phones are recommended not only because it means that you can experience better mobile phones at the same price. Cost-effectiveness is a very important factor. When choosing a mobile phone, at the same time, we must choose a mobile phone that suits us. your own budget and needs. With good performance and affordable prices, today I would like to recommend three cost-effective mobile phones with powerful performance! The first one: OnePlus Ace1 storage, equipped with a full version of LPDDR5 memory and UFS3, and also equipped with 16GB of large storage, which can easily handle multi-tasking. This is a mobile phone that performs very well in terms of performance, equipped with Snapdragon Dragon 8+ processor. The picture is smooth and clear, supporting 120Hz refresh rate and

2024-03-22 comment 0 1139

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 1200

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 1054

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