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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11279

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 17603

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 11314

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 reserve commemorative coins on Huawei mobile phones

Course Introduction：Steps to reserve commemorative coins: 1. Follow Huawei’s official channels; 2. Log in to Huawei Mall; 3. Find the commemorative coin reservation page by searching or browsing related categories; 4. Add commemorative coins to the shopping cart; 5. On the shopping cart page , fill in the order information; 6. Select the payment method; 7. After confirming the order information and payment method, you need to click the "Submit Order" button; 8. After completing the order submission, you only need to wait for the delivery notification from Huawei Mall.

2023-09-25 comment 0 778

Share a practical online shopping mall-shopping module and order module

Course Introduction：Today's task Complete the functions of the shopping module Complete the functions of the order module 1.1 Shopping module: 1.1.1 Function demonstration: product details: Shopping cart module: 1.1.2 Code implementation: 1. Click the [Add to Cart] link on the product details page. 2. Submit to Servlet:

2017-06-25 comment 0 3631

How to delete an order on Vipshop. Share the steps to delete an order on Vipshop.com

Course Introduction：Vipshop is a high-quality shopping mall that provides users with a very comfortable shopping experience, and the products are all high-end genuine products, making the shopping process safe and comfortable. Today, the editor brings you a tutorial on how to delete an order on Vipshop. Interested friends may wish to learn more! How to delete an order from Vipshop 1. First, click to open the Vipshop software, enter the homepage, switch to the Favorites, Vipshop Outlet, Shopping Cart, and Personal Center pages, and click [Personal Center] in the lower right corner; 2. Then We need to see a lot of information on the personal center page, click [All Orders] here; 3. Then go to the order page, select the order that needs to be deleted, and then click [Order]; 4. Finally click to enter. Go to the order details page and select the lower left

2024-07-12 comment 0 884

How to open a micro mall How to open a micro mall

Course Introduction：You can purchase the version after building a micro-mall on the official account page. Tutorial Applicable Model: iPhone13 System: iOS15.3 Version: WeChat 8.0.20 Analysis 1 First enter the WeChat search page, enter and search for the WeChat mall. 2Click on the official account in the search results, and then click Follow. 3. Click Build Micro Mall on the official account page, and then click Purchase Version. 4After entering the product page, click Buy Now. Supplement: What functions should be enabled in a micro mall? 1 When an enterprise develops a micro mall, it should determine the functions of the mini program based on factors such as the industry and the actual situation of the enterprise. There are many functions that micro-malls can implement, such as: product display, shopping cart, payment, order inquiry and feedback, logistics inquiry and other basic functions, as well as group buying, flash sales, group sales, etc.

2024-02-22 comment 0 556

Is Dreamweaver CMS a mall?

Course Introduction：DreamWeaver CMS is not a mall, it is an open source website construction and management system. But DreamWeaver cms can be used to build shopping mall websites. Reasons for building a mall: 1. Rich functions, providing the functions required by the mall such as product management, order management, online payment, logistics management, etc.; 2. Strong scalability, users can choose and install corresponding plug-ins according to their own needs. For example, product search plug-ins, shopping cart plug-ins, membership system plug-ins, etc.; 3. There are rich template resources. For mall websites, users can choose suitable templates; 4. There are many successful cases in mall website construction.

2023-08-03 comment 0 1396

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