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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11357

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 17659

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 11371

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 are the PHP open source systems?

Course Introduction：PHP open source systems include: 1. WordPress, one of the most popular open source systems in the world; 2. Joomla, a feature-rich open source CMS; 3. Drupal, a powerful open source CMS; 4. Magento, specially designed for e-commerce websites Open source system; 5. Zen Cart, an open source e-commerce system based on PHP; 6. osCommerce, an open source e-commerce solution; 7. PrestaShop, a popular open source e-commerce system; 8. Moodle, etc.

2023-07-18 comment 0 2539

Where is the Zhongguancun computer market? How many computer buildings are there in Zhongguancun?

Course Introduction：Where is the Zhongguancun computer market? haha I know! ! 1. Hailong Building: Zhongguancun, Haidian District 2. Zhongguancun eWorld: Zhongguancun, Haidian District 3. Dinghao Electronics Mall: Zhongguancun, Haidian District 4. Peking University Resources Building: Zhongguancun, Haidian District 5. Silicon Valley Computer City, both old and new, Zhongguancun 6, Zhonghai Electronics City, both old and new. Zhongguancun 7, Pacific Digital City, is very big, but it feels not very popular. . Zhongguancun 5. Pingleyuan Electronics Market: Pingleyuan, Chaoyang District 6. Bainaohui: Dongdaqiao, Chaoyang District 7. Guangwai Electronic Technology Mall: Guang'anmenwai Daguanying, Xuanwu District 8. Ping'anli Electronics Market: Ping'anli, How many computer buildings are there in Zhongguancun, Xicheng District? What computer software are available in Hailong Building, Dinghao Building, Kemao Building, and Sinosteel Building in Zhongguancun? There is system software

2024-04-23 comment 0 1064

ECShop Interpretation: Let you unveil the mystery of this program

Course Introduction：Interpretation of ECShop: I will help you uncover the mystery of this program. Specific code examples are needed. ECShop is a powerful open source e-commerce system that is widely used in various e-commerce websites at home and abroad. As a mature and stable e-commerce system, ECShop not only provides rich mall functions, but also has flexible customization, meeting the needs of many e-commerce companies. In this article, we will explain ECShop in depth and use specific code examples to help you uncover the mystery of this program. Introduction to ECShopE

2024-03-18 comment 0 1225

Corsair Power Switches to Cybenetics Certification, No Longer Offering 80 PLUS Certification in the Future

Course Introduction：According to news from this website on August 8, CORSAIR, one of the important retail power supply suppliers, announced yesterday (local time) that its power supply products will fully switch to the certification system of CybeneticsLabs in the future and will no longer provide 80PLUS certification. Corsair believes that Cybenetics’ ETA conversion efficiency test is more detailed than that of 80PLUS, with more than a thousand load combinations far richer than 80PLUS (Note from this site: the measurement points of 80PLUS are only single digits), and can more accurately reflect the actual performance of the power supply. Performance under usage. In addition, the Cybenetics energy efficiency rating system includes Diamond, the highest level that requires a power supply to achieve a conversion efficiency of 93% at rated power, which is higher than Titani, which has the highest 80PLUS.

2024-08-08 comment 0 847

Where is the Zhongguancun computer market?

Course Introduction：1. Where is the Zhongguancun computer market? haha I know! ! 1. Hailong Building: Zhongguancun, Haidian District 2. Zhongguancun eWorld: Zhongguancun, Haidian District 3. Dinghao Electronics Mall: Zhongguancun, Haidian District 4. Peking University Resources Building: Zhongguancun, Haidian District 5. Silicon Valley Computer City, both old and new, Zhongguancun 6, Zhonghai Electronics City, both old and new. Zhongguancun 7, Pacific Digital City, is very big, but it feels not very popular. . Zhongguancun 5. Pingyuan Electronics Market: Pingyuan, Chaoyang District 6. Bainaohui: Dongdaqiao, Chaoyang District 7. Guangwai Electronic Technology Mall: Guang'anmenwai Daguanying, Xuanwu District 8. Ping'anli Electronics Market: Ping'anli, Xicheng District 2. What computer software are there in Zhongguancun? There are system software, game software, work software and related large and medium-sized software system services, etc.

2024-08-05 comment 0 450

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