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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11302

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 17615

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 11321

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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Second-hand recycling website uses secured transaction mechanism developed in PHP

Course Introduction：The second-hand recycling website uses the secured transaction mechanism developed by PHP. With the rapid development of the Internet, second-hand transactions have become a common consumption method. However, although the second-hand market has huge development potential, there are also some problems, such as trust and safety. In order to solve these problems, many second-hand trading platforms have introduced guaranteed trading mechanisms. This article will introduce a second-hand recycling website using a secured transaction mechanism developed in PHP and provide relevant code examples. 1. Demand analysis Before developing the secured transaction mechanism of the second-hand recycling website, we first conduct the demand analysis

2023-07-01 comment 0 3290

BYD looks forward to new brand layout: Tianjin sales company established, Hu Xiaoqing serves as legal representative

Course Introduction：According to news on June 8, according to the editor's understanding, BYD's Yangwang brand has recently made a new layout in the sales network and established Tianjin Yangwang Auto Sales Co., Ltd. The newly established company has a registered capital of 1 million yuan and aims to promote the development of the Yangwang brand in the market. The legal representative of Tianjin Yangwang Auto Sales Co., Ltd. is Hu Xiaoqing. The company is located on Jiefang South Road, Hexi District, Tianjin. Its main business is retail. According to relevant information, the company's business scope includes new energy vehicle sales, plug-in hybrid special engine sales, charging pile sales, trade brokerage, conference and exhibition services, business agency services, second-hand car trading market operations, and insurance Agency business, etc. These initiatives will provide better marketing and sales for looking up brands.

2023-06-10 comment 0 1254

Xiaomi launches new operating system ThePaper OS: Xiaomi 14 series will be the first to carry it and gradually replace MIUI

Course Introduction：According to news from this site on October 17, Xiaomi founder Lei Jun just said on Weibo that today is a historic moment for Xiaomi. Xiaomi’s new operating system, Xiaomi HyperOS, has been officially packaged. Lei Jun said that the Xiaomi Mi 14 series will be the first mobile phone equipped with the new system and has been delivered to the factory to start production. From this moment on, Xiaomi ThePaper OS will gradually succeed MIUI. At present, the official has not announced more information about ThePaper OS, and this site will keep paying attention. It is worth mentioning that some foreign media previously believed that Xiaomi’s Thermal OS system is only used in the domestic market, while the MIUI system will continue to be updated in overseas markets. "Lei Jun: Xiaomi's Pengpai OS is based on the integration of Android + self-developed Vela system, and is a step towards "people and cars"

2023-10-17 comment 0 1994

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 1188

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 1044

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