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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 11370

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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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

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

Why do multi-user mall systems specifically use PHP for back-end development?

Course Introduction：Why do multi-user mall systems specifically use PHP for back-end development? With the rapid development of the e-commerce industry, mall systems have become an essential tool for many enterprises. The multi-user mall system meets the needs of multiple merchants to settle and manage. When developing a multi-user mall system, choosing the right back-end development language is crucial. As a language widely used in web development, why has PHP become the first choice for multi-user mall systems? This article explores this issue and provides some relevant code examples. Open Source PHP is an open source

2023-09-08 comment 0 1227

Why do multi-user platforms of shopping mall systems tend to use PHP?

Course Introduction：Why do multi-user platforms of shopping mall systems tend to use PHP? With the rapid development of e-commerce, the multi-user platform of the mall system is gradually becoming the key to business operations. When choosing to develop a multi-user platform for city systems, PHP has become one of the preferred languages. This article will discuss this issue and share some code examples of the PHP mall system. PHP is an open source, powerful scripting language that has the advantages of being cross-platform, easy to learn and use. Here are some reasons why multi-user platforms for mall systems tend to adopt

2023-09-08 comment 0 558

Why can't operators control harassing calls? The AI outbound call system becomes an accomplice of harassing calls!

Course Introduction：According to news on September 2, experts recently revealed why operators cannot control harassing calls. This may be because they are wrongly blamed. In the first quarter of this year, operators intercepted 1 billion fraudulent calls and text messages. However, operators really can't control harassing calls. Relevant experts said that technically speaking, harassing calls are also evolving. For example, there is now an "AI telemarketing robot" system that simulates numbers, automatically dials in batches, AI simulates human voices, and automatically responds to calls; it can make thousands of calls every day. This makes it increasingly difficult to prevent interception. The reporter investigated a number of technology companies and found that the timbre, speech skills, number ownership and interception probability of AI outbound calls can be set separately. "The outbound call number pool is very large. Once the number is used by the user,

2024-09-02 comment 0 745

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