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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11312

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 17626

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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How to implement online customer service function in jQuery

Course Introduction：This article will share with you the example code of jQuery to implement the drawer-style online customer service function on the right side. Readers in need may refer to it.

2018-06-15 comment 0 3279

Where can I scan the QR code on Zuoyebang?

Course Introduction：Zuoyebang provides a QR code scanning portal, which users can find in the upper right corner of the mobile app or under the user's avatar in the upper right corner of the computer website. The scanning process is: open the homework helper, go to the entrance, and aim at the QR code. Common problems include being unable to scan and jumping to the wrong page. You can try refocusing, checking the camera, or contact customer service.

2024-05-01 comment 0 1219

How to scan the QR code to follow friends on NetEase Cloud Music. Sharing the steps to follow friends on NetEase Cloud Music by scanning the QR code.

Course Introduction：NetEase Cloud Music brings together a lot of high-quality music resources and is a music-listening tool for users who like to listen to music. There are many ways to add friends in the software. Today, the editor will bring you the specific method of scanning the QR code to follow friends on NetEase Cloud Music. Come and learn if you need it! How to scan the QR code to follow friends on NetEase Cloud Music. First, open the homepage of NetEase Cloud Music and click on the "three horizontal lines" in the upper left corner. Then go to the sidebar of the homepage and click "Scan" in the upper right corner. Wait until you enter the scanning interface and click "Album" in the upper right corner. Then enter the mobile phone album, click on the NetEase Cloud QR code image and then identify the QR code image. After the final recognition is successful, enter the friend's homepage and click "Follow" on the page to add/follow friends.

2024-07-10 comment 0 568

How to delete pop-up ads on TV How to delete pop-up ads on TV

Course Introduction：How to delete the pop-up advertisements on the TV (how to delete the pop-up advertisements on the TV), how to do it specifically, follow the editor to see below. First, turn on the TV and upgrade the TV Home application to the latest version before entering. Click the "Get Cash" button on the left. Follow the prompts and use WeChat to scan the QR code on the right to log in. Login can unlock all rights, including the privilege of removing ads. Open the "+" in the upper right corner of WeChat on your mobile phone, click "Scan" in the pop-up item, and scan the QR code on the TV. After Step Reading clicks "Follow" the TV home service account, you will receive "Congratulations on getting an ad-free trial experience", click on the blue words to enter. After the "Get it for free without advertising" prompt pops up, click "Get it now" at the bottom.

2024-06-14 comment 0 353

How to cancel pin login password in win11

Course Introduction：Some win11y users do not need a pin code, so how to cancel the pin login password in win11? Today, the editor will bring you a tutorial on how to cancel the pin login password in win11. Friends in need should take a look together! Step 1: Use the shortcut keys to enter the settings of win11 to cancel the pin login password. First, open the system settings menu by pressing "win+i" on the keyboard. Step 2: Enter the account and click on the "Account" option in the left column. Step 3: Enter the login option. Find "Login Options" on the right side and click to enter. Step 4: Click Delete and then find "pin" under the login method. After expanding, select and click "Delete". Step 5: Read the results of deleting the pin code, confirm the deletion and then read the results of deleting the pin code.

2024-01-11 comment 0 7143

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