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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11447

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 17735

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 11438

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 add email notification function to accounting system - How to develop email notification using PHP

Course Introduction：How to add email notification function to the accounting system - How to develop email notification using PHP requires specific code examples. With the continuous development of the Internet and electronic information era, digital accounting systems have increasingly become an indispensable part of people's lives. In order to improve the efficiency and convenience of the accounting system, we can consider adding an email notification function to it. This article will introduce in detail how to use PHP to develop email notifications and give specific code examples. 1. Principle of PHP email notification To implement the email notification function, we need

2023-09-26 comment 0 624

Ranking list of domestic digital collection trading platforms in 2023

Course Introduction：Digital collections are various cultural relics, artworks, antiques and collectibles that exist in digital form. With the development of digital technology, digital collections have attracted more and more attention. In order to meet market demand, multiple digital collection platforms have emerged in China. The following are the top ten domestic digital collection platforms in 2023. Ranked first among the top ten domestic digital collection trading platforms in 2023, Zangrong.com. Zangrong.com was established in 2015 and is China's digital art trading platform. With art trading as its core, Zangrong.com integrates digital cultural relics, cultural creativity, watches and jewelry, collectibles and other cultural trading categories, becoming an integrated digital cultural trading platform. 2. Yixing.com Yixing.com was established in 2012 and is an e-commerce platform focusing on digital cultural products. Products include ancient books

2024-01-26 comment 0 2764

How to implement the memo function of the accounting system - How to develop memos using PHP

Course Introduction：How to implement the memo function of the accounting system - the method of developing memos using PHP requires specific code examples. In recent years, with the advent of the digital age, people have increasingly relied on electronic devices and applications to help manage daily tasks and affairs. Among them, the memo function of the accounting system has become one of the necessary tools for many individual and business users. When developing an accounting system, implementing the memo function is an important design requirement. The following is how to develop the memo function using PHP and provides specific code examples. Design the database table structure first

2023-09-24 comment 0 1378

How to use PHP to develop the bill consolidation function of the accounting system - Provides a development guide for the bill consolidation function

Course Introduction：How to use PHP to develop the bill consolidation function of the accounting system. With the advent of the digital age, people's lives are increasingly dependent on electronic devices and the Internet. The accounting system has become one of the important tools for people to manage their finances. In order to improve the efficiency and convenience of the accounting system, developing a bill consolidation function has become an indispensable part. In this article, we will introduce in detail how to use PHP to develop the bill consolidation function of the accounting system and provide specific code examples. The core idea of the bill merging function is to merge multiple bill information into a new bill

2023-09-24 comment 0 865

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 1271

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