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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11302

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 17615

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 11321

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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An example tutorial on how to implement three-level linkage between provinces, cities and counties using jQuery

Course Introduction：Simple three-level linkage between provinces and municipalities, a case suitable for beginners to start learning The directory structure is as follows: Three-level linkage.html is at the same level as the JS folder The renderings are as follows: HTML code: 1 <style type="text/css"> 2 *{margin:0;padding:0;} 3.selectAll 4 { width:400px; 5 mar

2017-06-26 comment 0 1345

How to implement multi-level linkage menu in Vue?

Course Introduction：Vue.js is a popular front-end framework, and many websites use Vue.js to develop interactive UIs. One common UI component is a multi-level menu (also called a cascading selector), which allows users to filter a list of one option by selecting another option, allowing for more granular search or navigation capabilities. In this article, we will introduce how to use Vue.js to implement a multi-level linkage menu. Preparation Before we begin, we need to make sure we have Vue.js installed.

2023-06-25 comment 0 2157

How to unbind a mobile phone number on Bilibili How to unbind a mobile phone number

Course Introduction：and account association method. However, in some cases, users may need to unbind their mobile phone numbers, such as changing mobile phone numbers, reallocating number resources, or for privacy reasons. Unbind mobile phone number 1. Open the Bilibili APP on my mobile phone and enter the homepage. 2. Enter the homepage of Bilibili APP, find [My] on the bottom line and click to enter. 3. Find [Settings] at the bottom of the personal center area and click to enter. 4. Find [Security and Privacy] in the settings interface and click to enter. 5. Find [Account Security Center] in the next interface and click to enter. 6. Find the Bind Mobile Phone option and click the [Change Mobile Phone] option. 7. Finally, choose whether your bound mobile phone can introduce the verification code, enter the verification code [pass verification], and you can bind the mobile phone number.

2024-06-03 comment 0 704

How to install win7 operating system on computer

Course Introduction：Among computer operating systems, WIN7 system is a very classic computer operating system, so how to install win7 system? The editor below will introduce in detail how to install the win7 system on your computer. 1. First download the Xiaoyu system and reinstall the system software on your desktop computer. 2. Select the win7 system and click "Install this system". 3. Then start downloading the image of the win7 system. 4. After downloading, deploy the environment, and then click Restart Now after completion. 5. After restarting the computer, the Windows Manager page will appear. We choose the second one. 6. Return to the computer pe interface to continue the installation. 7. After completion, restart the computer. 8. Finally come to the desktop and the system installation is completed. One-click installation of win7 system

2023-07-16 comment 0 1188

php-insertion sort

Course Introduction：:This article mainly introduces php-insertion sort. Students who are interested in PHP tutorials can refer to it.

2016-08-08 comment 0 1044

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