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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11328

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 17632

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 11339

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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Operation content of making street light poles with AI

Course Introduction：1. First use a pen to draw the basic structure of the path, which is mainly divided into elements such as lamp poles, lamp holders, advertising racks, and connecting structural components. 2. Set a gray-black gradient to fill the street lamp pole, so that the thick bottom and thin top light poles appear. 3. Use different gray and black colors to fill the hanging structural parts on the light pole, so that the metal material appears on the special-shaped structural parts. 4. Fill the lamp head with a gray-white gradient, and then fill the highlight path above the lamp head with a translucent gray-white gradient so that the effect of glass appears on the lamp head. 5. Set a golden gradient to fill the connector in the middle of the street lamp, so that the copper material appears on such connector. 6. Next, we fill the advertising frame in the middle of the street lamp with a gray-black gradient, and then use a circle to perform a mask operation, so that the black iron material appears on the

2024-04-07 comment 0 1111

Huawei MatePad SE 11-inch real phone exposed

Course Introduction：Recently, a digital blogger broke the news that Huawei will bring multiple new products in July, including smart screens and new tablets. Then the new tablet Huawei MatePad SE 11-inch real machine was released. As can be seen from the picture, the tablet has an 8-megapixel camera on the back. Let’s learn more about it with the editor below! Huawei MatePad SE 11-inch real machine exposed 1. As shown in the picture, the front of Huawei MatePad SE 11-inch adopts a design with almost equal width on all four sides, and the front camera is located on the horizontal frame. The back of the tablet is made of metal with a blue-gray texture. The specific color is unknown. The HUAWEI English logo is in the center. It is equipped with an oval-shaped camera module in the corner and contains an 8-megapixel single camera.

2024-07-01 comment 0 783

Mate50Pro does not support 5G network, is it still worth buying?

Course Introduction：In the mobile phone market, Huawei Mate50Pro has attracted the attention of many consumers with its unique design and excellent performance. This phone is not only top-notch in terms of hardware configuration, but also performs well in software optimization and ecosystem construction. Let me analyze all aspects of Huawei Mate50Pro in detail. 1. Appearance design: The perfect fusion of fashion and texture. The front of Huawei Mate50Pro is a curved screen. The top of the screen adopts a notch design. The edge of the screen is very narrow, and the overall appearance is very beautiful. The back of the phone uses a large ring camera module, with three cameras and camera sensors arranged in a square shape. The metal material on the side has a very good texture. The entire body weighs only 205 grams and has a thickness of 8.

2023-11-18 comment 0 865

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 1203

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