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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11459

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 17742

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 11447

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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What is the length and width of Redmi K30?

Course Introduction：The length of the Redmi K30 is 165.3 mm and the width is 76.6 mm. The Redmi K30 is a mobile phone under the Redmi brand of Xiaomi Company. It was officially released on the afternoon of December 10, 2019. The front of the model uses a 6.67-inch dual-hole punch. screen, the screen refresh rate is up to 120Hz, and three colors are available: "Deep Sea Glimmer", "Purple Jade Fantasy", and "Flower Shadow".

2022-12-13 comment 0 9049

How to perform split-screen operation on Redmi K30 Pro? Redmi K30 Pro split screen tutorial

Course Introduction：The split-screen function of mobile phones is very practical, allowing us to perform other tasks while watching movies. Nowadays, most smartphones already have the split-screen function. Now I will introduce to you how to use split-screen on Redmi K30Pro. How to use split screen on Redmi K30 Pro mobile phone The split screen function of Redmi mobile phone is very simple and easy to use. This article takes Redmi K30 Pro as an example to introduce how to use the split screen function. To use the split screen feature, first open the two apps you want to use. You can long press the recent task key to select the application that requires split screen in the recent task interface. You can also find the application you want to use on the home screen or app drawer, and then click the icon to open it. Open two apps

2024-01-08 comment 0 1355

Introduction to how to set up the screen lift function on Redmi K30

Course Introduction：1. First, we open the Redmi phone and click Settings. 2. Click the lock screen. 3. Click the check box to lift the bright screen.

2024-04-15 comment 0 1120

What is the difference between Redmi note11Pro+ and Redmi K40_Comparison introduction between Redmi note11Pro+ and Redmi K40

Course Introduction：1. Mobile phone screen Redmi note11Pro+: It is equipped with a 6.67-inch OLED screen, and it still has a 120Hz refresh rate, which brings us a good visual experience. Redmi K40: a 6.67-inch AMOLEDE4 screen, with a single hole design in the middle. Supports 120Hz refresh rate and HDR10+ technology. Summary: Although both phones are 120Hz, the Redmi K40 uses an AMOLEDE4 screen, which is very good in terms of visual effects. 2. Core configuration Redmi note11Pro+: adopts 6nm process and A78 architecture, 2 A78 large cores clocked at 3.0GHz, and 3 A78 mid-range cores clocked at 2.6GHz

2024-04-15 comment 0 588

Which one is better, Xiaomi Buds4Pro or Redmi Buds5pro?

Course Introduction：Xiaomi Buds4Pro headphones and Redmi buds5pro headphones are two very useful devices. Some users are curious about the difference between the two when buying headphones. Now let’s take a look at the differences between these two headphones. [How to operate Xiaomi Buds4Pro headphones] Which one is better, Xiaomi Buds4Pro or Redmi buds5pro? Answer: The editor here recommends that you buy Redmi buds5pro headphones. 1. Battery life: With noise reduction turned off, the Redmi buds5pro earphones have a battery life of about 10 hours, Xiaomi Buds4Pro earphones have a battery life of 9 hours, and Redmi has 1 hour longer; 2. Color matching: Redmi buds5pro earphones are available in Ice Porcelain Blue, Qingxue White, Obsidian Black and Gaming Edition, Xiaomi Mi B

2024-02-15 comment 0 3447

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