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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11311

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 17622

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 11329

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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jQuery implements the animation effect of adding to the shopping cart_jquery

Course Introduction：When you browse the products you like on an e-commerce shopping website, you can click the "Add to Cart" button on the page to add the products to your shopping cart. This article introduces the use of an animation plug-in based on jQuery to achieve the effect of products flying into the shopping cart on the right when clicking the add to cart button.

2016-05-16 comment 0 1861

What are the payment methods for Dewu? View all payment methods for Dewu and share the tutorial.

Course Introduction：Dewu, a pioneer in the trendy online shopping community, integrates authentic and trendy goods, purchase identification, and interactive sharing to create a trendy life circle for young people, allowing you to easily buy your favorite items. Many users want to know what payment methods are available for Dewu. You will know after reading this article! What are the payment methods for Dewu? 1. First, in the product payment dialog box, we click the [Switch to more payment methods] button; 2. Finally, click to enter and you will see a variety of different payment methods; Dewu Currently, payment methods such as WeChat Pay, Alipay, bank card payment, WeChat friend payment, Alipay friend payment, Huabei, Union Quick Pass, Dewu Installment, and Huabei payment are supported.

2024-07-03 comment 0 1009

How to buy things at smtownstore? Introduction to shopping methods

Course Introduction：The smtown store app is an online peripheral mall shopping software specially tailored for SM artists. This software can provide users with a wealth of celebrity peripheral products. Users can purchase as they wish, and can also grasp the artist's information at the first time. The latest news, interaction with celebrities, and then the editor will teach you how to buy goods through this software. Method introduction: 1. Open the Chinese version of the smtown store app, and select the celebrity peripherals you want to buy on the homepage, such as exo2. After clicking, all exo products on sale will be displayed. After selecting the product you want to buy, click the shopping button. 3. Then click View the shopping cart 4. After entering the shopping cart, check the products and click to checkout 5. After completing the filling in the address, phone number and other information, click Submit

2024-02-11 comment 0 965

How to recharge Tmall Super Card

Course Introduction：Many people buy Maochao cards when shopping on Tmall. When the balance is insufficient, they need to recharge before they can continue to use it. Let me share with you the operation method of recharging the Maochao Card. Friends who are interested can take a look. 1. After opening the Tmall software on your mobile phone, click the "I" item on the far right in the options bar at the bottom of the page to switch to enter. 2. Click the "Service Silver Card" button in the exclusive privileges for mobile Tmall users in the middle part of my page. 3. Next, enter the details page of Maochao Card, swipe down to search, there is a "Maochao Card Recharge Privilege", below it is displayed the current Maochao Card balance, select the option to recharge, After clicking the check box to agree to the Maochao Card usage rules, click the "Confirm Payment" button below to complete the payment.

2024-07-16 comment 0 930

How to check bill details on Alipay How to check bill details

Course Introduction：The Alipay app is a payment application that everyone uses every day. It allows you to do your daily shopping or take a ride without carrying cash. You can just scan the QR code to pay. It is very safe and improves the lifestyle of mobile phone users. More convenient. It can be opened at any time. All mobile phone users have passed real-name authentication, and can add multiple cards to store personal funds. Online recharge, payment, shopping and various businesses can be easily done. Adding friends can realize online transfers and red envelopes, etc. You can wait and use it easily online anytime and anywhere. There are many payment and welfare activities that you can actively participate in every day. Now the editor carefully brings Alipay partners one by one ways to check bill details. 1. Open the Alipay software and click the [My] button

2024-04-22 comment 0 1197

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