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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11340

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 17643

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 11353

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 change the music on electronic wedding invitations How to change the music on electronic wedding invitations

Course Introduction：Although Wedding Ji is not used too many times, it can definitely provide every friend with the best related services, such as booking wedding photography, process planning, dress rental, etc. Of course, there are also more convenient ones. Electronic invitations, no matter how far apart they are, can be quickly shared with relatives and friends through various social platforms! Moreover, everyone can freely design the invitations, including switching the background music. If you don’t know yet, you have to come in and take a look! Wedding Anniversary Electronic invitation music replacement tutorial 1. Open the Wedding Anniversary APP and enter the "My" page. 2. Click the "Electronic Invitation" option in the "Tools" bar. 3. Select “Sound

2024-03-28 comment 0 506

Which camera is better for shooting videos? What are the benefits of using a video camera?

Course Introduction：In the age of digital media, video shooting has become a common form of expression. Choosing the right camera is crucial to creating high-quality video content. This article will analyze for you how to choose a camera suitable for shooting video, and discuss the benefits of using a camera to shoot video. 1. Which camera is better for shooting videos? 1. Understand the needs: Before choosing a camera, you must first clarify the purpose and needs of shooting video. For example, whether it is used for wedding photography, outdoor adventures, or professional film and television production. 2. Determine the budget: Choose a camera based on your shooting needs and budget. The prices of cameras on the market range from a few thousand to hundreds of thousands of yuan. 3. Consider image quality: The image quality of a camera is an important indicator of its performance. Resolution, color reproduction capability

2024-07-12 comment 0 753

Xiaomi Mi 14 Ultra debuts upgraded 'portrait large model': three-dimensional light and shadow, natural layers

Course Introduction：According to news on February 20, Xiaomi Mi 14 Ultra will be released on the evening of February 22. The new phone will still focus on imaging experience. Recently, the lens hardware information of Xiaomi Mi 14 Ultra has been announced. Today, the official announced a new comprehensive upgrade of optics and algorithms, and the Xiaomi portrait engine has been upgraded to a "portrait large model". According to the official introduction, the large portrait model has three computational photography models of light and shadow, bokeh, and grayscale retouching, which perfectly restore the true levels, making the light and shadow more three-dimensional, the depth of field more natural, and the skin details and texture more realistic. In particular, Xiaomi Mi 14Ultra is specially equipped with a 75mm 3.2x portrait lens with an aperture of f/1.8, which can be used with the algorithm to shoot a stronger sense of depth. Level and reality are also the features of this year’s Xiaomi Mi 14Ult

2024-02-20 comment 0 693

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 1209

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 1065

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