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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11277

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 17603

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 11312

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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Can Simple Weather delete the default city? How can Simple Weather delete the default city and added frequently used cities?

Course Introduction：Simple Weather app is the latest weather service application officially launched by Shanghai Maiya Network Technology Co., Ltd. It provides users with real-time weather information, 24-hour weather forecast, weather forecast for the next 15 days and other services. At the same time, the application adopts a simple and easy-to-use page design style. The overall design layout is exquisite and refreshing, and is matched with bright colors and simple lines, allowing users to use the application more easily and happily. The weather data provided by the application includes comprehensive weather information such as air quality index, temperature trend, pm2.5, etc., as well as life index information such as clothing, ultraviolet rays, and comfort. And when applied to accurate forecasting, it can accurately predict rainfall within 1 kilometer in the next two hours, and can also count rainfall per minute in real time, and then further analyze the rainfall through statistical data.

2024-06-18 comment 0 1180

Apple's weather service was disrupted on a large scale, customer service responded: There may be a problem with the official website server

Course Introduction：Thanks to netizen Feng Jian Huiyi for submitting the clue! According to news on the morning of June 6, according to Apple’s system status page, Apple’s weather service experienced a service interruption at 2:10 am Beijing time today, causing users to wait for a long time to see the weather forecast, or it could not be displayed. Many domestic Apple users have also reported encountering this problem. In fact, this is not the first time that Apple's weather service has experienced large-scale interruptions. In 2023, Apple's weather application failed many times and weather data was unable to be obtained. Apple customer service told Sina Technology that there may be a problem with the official website server, and it is recommended to pay attention to it later. Related reading: "Apple Weather Service Another Global Outage"

2024-06-08 comment 0 1166

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 1174

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 1028

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