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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11270

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 17594

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 11306

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 build a website using templates in dedecms

Course Introduction：Steps to build a website with DedecMS template: Download the template from the official website. Copy the templates folder to the "templets" folder of the installation directory. Log in to the admin panel and enable the template from the drop-down menu. Edit template files to customize layout, content, and style. Add pages, posts and media content. Preview the website effect and publish it online after you are satisfied.

2024-04-16 comment 0 1282

How to enable or disable scroll bars always showing in Windows 11?

Course Introduction：The Windows operating system allows users to specify whether scroll bars should be automatically hidden when they are inactive or not in use. Windows, on the other hand, enables scroll bars by default. If any user wants to enable or disable this feature on their system, please refer to this article to help them know how. How to enable or disable always-on scroll bars in Windows 11 1. Pressing and holding the Windows+U keys will open the Accessibility page on your system. 2. Select the visual effect by clicking on it, it is located at the top of the Accessibility page. 3. If you want to enable the Always Show Scroll Bars feature on your system, click the Always Show Scroll Bars toggle button to turn it on as shown below. 4. You can always show

2023-04-24 comment 0 964

How to set the template for PPT - How to set the same style template for PPT

Course Introduction：Open the PPT file, select [Design] in the menu bar options, find the editing master in the design options, click to enter the setting template style, add the common layout method and related formats, text size, etc. of each page of the PPT. You can also Set the animation effect directly on the template, select Custom Animation, and then select the object to change the animation settings. After the template is set, click Rename in the Slide Master on the menu bar and name the custom master. Close the option in the slide master to complete the setting of the master. Use the shortcut key Ctrl+M to add a new slide and find that the master we set is effective. Friends who don’t know how to set the same style template using PPT, don’t miss the editor’s guide. Here comes this article.

2024-04-17 comment 0 629

Detailed method of defining background in seewo whiteboard

Course Introduction：Open the seewo whiteboard. You can see a small toolbar in the lower left corner. Click the third tool icon to enter the next-level settings panel. Click the theme button, and several options will appear at the bottom: solid color background, subject background, teaching background, and local pictures to customize the background. First, click on a solid color background to see how it looks. Choose apple green, which has a protective effect on your eyes. Click on the subject tool, and you can also set the background according to the characteristics of the subject. For example, for music class, you can set the staff background. Click Teaching Background to choose from a variety of background templates in different styles. Additionally, the background can be customized. Click a local picture to upload a picture from your local computer and set it as the whiteboard background. This is the effect with a playground picture as the background.

2024-04-23 comment 0 327

What technologies are there in the vue framework?

Course Introduction：The main technologies of the Vue.js framework include: Template syntax: used to define the user interface. Reactive system: automatically synchronizes data changes in models and views. Single-file components: Encapsulate component code to simplify development. Lifecycle hooks: perform specific operations during the component lifecycle. State Management (Vuex): Centrally manage application state. Routing (Vue Router): Implements navigation of single-page applications. Internationalization (Vue-i18n): Added multi-language support.

2024-04-06 comment 0 368

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