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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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How to create a responsive product display page using HTML and CSS

Course Introduction：How to create a responsive product display page using HTML and CSS, specific code examples are required. With the popularity of mobile devices, responsive web design has become an important requirement for modern web design. As an important part of a corporate or personal website, the product display page also needs to have the characteristics of responsive design. This article will introduce in detail how to use HTML and CSS to create a responsive product display page, and provide specific code examples. First, we need to create a basic HTML document structure. The following is a brief

2023-10-20 comment 0 1035

How to create a responsive tourist attraction page layout using HTML and CSS

Course Introduction：How to use HTML and CSS to create a responsive tourist attraction page layout. In today's era of widespread mobile devices, a responsive web page layout is crucial. Especially in the travel industry, an elegant page layout that adapts to various screens can attract more users and improve user experience. This article will introduce how to use HTML and CSS to create a responsive tourist attraction page layout, and give specific code examples. Step 1: HTML structure Create a basic HTML structure, including header, navigation bar,

2023-10-27 comment 0 1596

Use WebMan technology to create the best travel website navigation function

Course Introduction：Overview of using WebMan technology to create the best travel website navigation function: With the rapid development of the travel industry, more and more people choose to plan and book travel through the Internet. Therefore, a powerful travel website navigation system is crucial to providing a quality user experience. This article will introduce how to use WebMan technology to create the best travel website navigation function, and provide corresponding code examples. Technical background: WebMan is a Web-based management system that provides a series of powerful tools and frameworks.

2023-08-13 comment 0 1232

Seven departments: Implement 4K/8K ultra-high definition into homes and encourage 4K/8K TV and other products to be brought into homes

Course Introduction：According to news from this site on December 15, the Ministry of Industry and Information Technology, the Ministry of Education, the Ministry of Commerce, the Ministry of Culture and Tourism, the State Administration of Radio and Television, the State Intellectual Property Office, and China Central Radio and Television issued "On Accelerating the Promotion of High-Quality Audio-Visual Electronics Industry" Guiding Opinions on Development" (hereinafter referred to as the "Opinions" on this site). According to the requirements of the "Opinions", we need to accelerate the mature application of 4K/8K ultra-high definition technology and encourage the use of 4K/8K TVs, projectors, laser TVs, high-quality audio, virtual reality terminals, naked-eye 3D display terminals and other products Introducing home use In addition, the seven departments also emphasized the importance of strengthening financial guidance and innovation, and innovated ultra-high-definition content production and household subsidy support methods. At the same time, it also supports online video platforms to provide ultra-high-definition large-screen services.

2023-12-15 comment 0 918

How to use JS and Baidu Maps to implement the map's popular attractions display function

Course Introduction：How to use JS and Baidu Maps to implement the map's popular attractions display function. With the rapid development of the tourism industry, more and more people are keen to explore popular attractions around the world. As a website or app developer, you may need to display information about popular attractions on a map so that users can more easily understand and plan their trips. In this article, I will introduce how to use JavaScript and Baidu Map API to implement this function, and provide specific code examples. First, we need to obtain the map actual value through Baidu Map API

2023-11-21 comment 0 919

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