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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11340

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 17646

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 11353

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 turn on the youth mode in class online classroom

Course Introduction：The youth mode of ClassIn online classroom aims to create a safe, healthy and focused learning environment to help teenagers make better use of online resources for learning, and provides parents and schools with an effective control method to better supervise and manage students. learning behavior. Here's how to set it up: How to turn on youth mode in classin online classroom. The first step is to open classin online classroom and click on the avatar. In the second step, click Settings. The third step is to find the youth mode and turn it on.

2024-07-02 comment 0 481

How to set up eye protection mode in classin online classroom. List of methods to enable eye protection mode in classin online classroom.

Course Introduction：The eye protection mode of the ClassIn online classroom is mainly used to reduce the damage to the eyes caused by blue light from the screen and relieve problems such as visual fatigue and dry eyes. It is suitable for users who use electronic devices for long periods of time to study and work. It can effectively reduce the burden on the eyes and improve Comfort of use. The specific setting method is as follows: How to set the eye protection mode in classin online classroom. First, open the classin online classroom and click on the avatar. Next, click Settings. Finally, find the eye protection mode and turn on the switch on the right.

2024-07-02 comment 0 637

How to enable youth mode in class online classroom

Course Introduction：In order to meet the special needs of teenagers in the learning process, ClassIn online classroom has specially launched a youth mode. This mode aims to create a safe, healthy and focused learning environment for students to ensure that they can make better use of online resources for learning. So below, the editor of this site will introduce to you the settings for turning on the classin youth mode. method, hoping to bring you a better learning experience. How to turn on the youth mode in the classin online classroom. The first step is to open the classin online classroom and click on the avatar. In the second step, click Settings. The third step is to find the youth mode and turn it on.

2024-05-30 comment 0 1066

How to set eye protection mode in class online classroom

Course Introduction：ClassIn’s eye protection mode mainly filters blue light from the screen to reduce its damage to the eyes. If you use electronic devices for a long time to study or work, the blue light emitted by the screen will cause a certain amount of pressure on your eyes, and the eye protection mode can effectively reduce this pressure. So many users may be interested in how to turn on the eye protection mode of the Classin online classroom app. If you don’t understand it yet, then the editor of this website will bring you a detailed introduction to the content strategy below. Users who don’t understand it yet can come and read it in detail along with this article. How to set eye protection mode in classin online classroom. First, open classin online classroom and click on the avatar. Next, click Settings. Finally, find the eye protection mode and turn on the switch on the right.

2024-06-08 comment 0 387

How to finish class early in Classin online classroom_Tutorial on finishing class early in Classin online classroom

Course Introduction：1. First open the software on your computer and open the online classroom in the software. 2. Then in the online class interface, click the get out of class dismissal button below. 3. Finally, in the pop-up end of get out of class prompt box, click the end of get out of class button, so that you can end the class and end the get out of class early.

2024-06-03 comment 0 707

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