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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11369

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 17683

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 11384

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 create a responsive countdown effect using HTML, CSS and jQuery

Course Introduction：Overview of how to use HTML, CSS and jQuery to create a responsive countdown effect: Countdown effect is one of the common functions in web development, especially suitable for event promotion, product promotion and other scenarios. This article will teach you how to use HTML, CSS and jQuery to create a responsive countdown effect, and provide specific code examples. Implementation steps: Create HTML structure: <divid="countdown"><di

2023-10-27 comment 0 1335

Summary of countdown effect examples implemented by jQuery_jquery

Course Introduction：This article mainly introduces the countdown effect implemented by jQuery, and summarizes and analyzes the related skills of jQuery for date and time operations to implement the countdown function in the form of examples. Friends in need can refer to the following

2016-05-16 comment 0 1614

What is the difference between css and css3

Course Introduction：Differences: 1. CSS3 refers to an upgraded version of CSS cascading style sheet technology; CSS refers to a computer language used to express file styles such as HTML or XML. 2. CSS3 has many new features than CSS, such as rounded corner effects, graphical borders, block shadows, text shadows, etc.

2021-03-31 comment 0 6631

Can a C++ function be declared static? What are the characteristics of static functions?

Course Introduction：Static functions are declared static in C++ and have the following characteristics: they are only visible in the file in which the function is declared, do not belong to any class, memory is allocated when the program starts, and non-static members are not accessible. For example, a code snippet that uses a static function to calculate the area of a circle can efficiently calculate the area of a circle given a given radius.

2024-04-21 comment 0 1002

How to play Golden Shovel War S11 Elf Adventure

Course Introduction：In the game "Golden Shovel War", how to improve your own strength? Just keep learning and exploring all aspects of the game. Today, let’s take a look at how to deal with the problem of how to play “Golden Shovel War S11 Elf Adventure”? In order to improve your strength, please don’t miss this guide. How to play Golden Shovel War S11 Elf Adventure Participating in the Elf adventure can provide players with additional rewards and special buffs. Each Elf has unique reward characteristics, so each adventure will bring various different effects. 1. Qiyu-Kayin: This event has been successfully completed. Please note that your position will directly affect your final ranking. When the game comes to an end, there will be a countdown, and everyone will try their best to find the little giant. 2. Adventure

2024-03-20 comment 0 938

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