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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11270

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 17593

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 11305

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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What is the difference between the old and new Xiaomi logo_A comparison of the old and new Xiaomi logos

Course Introduction：1. Based on the graphic itself: First of all, the overall proportion of MI in the Xiaomi graphic logo changes. The width is lengthened and the height is shortened. The reason is that Kenzai Hara changed the width of the three vertical columns of M and the vertical width of I. Why did he change it? He made the M The thickness of the strokes of Beisheng Nian 15 in the sub-body itself is different, instead of [positive, negative, positive, negative, positive], the width and rhythm are consistent, and the recognition is lost when the special materials are like Tao. This ErlM-Xinsheng Together, the hearts look more like two letters than a bunch of vertical lines. At the same time, the rhythmic changes between the positive and negative strokes ensure the recognition of MI in various sizes such as physical metal, paper, and screens; based on graphic logos The key to adapting the shape to the perfect R-angle has been explored and proven in the era of Nokia and tablet iOS updates, and it looks visually like

2024-04-28 comment 0 572

Tutorial on implementing responsive sliding menu using CSS

Course Introduction：A tutorial on using CSS to implement a responsive sliding menu requires specific code examples. In modern web design, responsive design has become an essential skill. To accommodate different devices and screen sizes, we need to add a responsive menu to the website. Today, we will use CSS to implement a responsive sliding menu and provide you with specific code examples. First, let's take a look at the implementation. We will create a navigation bar that automatically collapses when the screen width is smaller than a certain threshold and expands by clicking the menu button.

2023-11-21 comment 0 1025

Eft | Smart and easy to use! ARC series welding robot newly launched

Course Introduction：With the continuous advancement of technological strength, Eft products have officially entered the intelligent stage. Based on the latest technology platform, Eft has launched a new ARC series of welding robots. The ARC series inherits the high-precision, high-speed and high-reliability features of the Eft robot family, while also being comprehensively upgraded in terms of intelligence and ease of use. Please watch the following video first to experience the unique charm of the new generation of ARC series robots~ Integrated applications are more convenient. The forearm's through-type hollow design has a through-hole diameter of 57mm. The peripheral pipeline is internally arranged, which makes the interference space smaller and the accessible area wider, making it more convenient. Customer use. The wrist posture is more flexible. The uniquely designed wrist structure can achieve a 5-axis movement range of more than ±180°, with flexible posture changes and free movement in space. It is very suitable for

2023-10-13 comment 0 1495

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 1165

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 1019

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