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Self-study IT network Linux load balancing video tutorial

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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

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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

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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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HTML, CSS and jQuery: Make a beautiful navigation menu

Course Introduction：HTML, CSS and jQuery: Make a beautiful navigation menu Navigation menu plays a very important role in web design. It not only provides navigation functions for visitors, but also increases the user experience of the website. This article will introduce how to use HTML, CSS and jQuery to make a beautiful navigation menu, with specific code examples. 1. HTML structure First, we need to use HTML to create the structure of the navigation menu. Here is a simple HTML navigation menu template: <n

2023-10-24 comment 0 1476

HTML, CSS, and jQuery: Build a beautiful scrolling tab navigation

Course Introduction：HTML, CSS, and jQuery: Build a beautiful scrolling tab navigation In modern web design, scrolling tab navigation has become a common design element. It provides visitors with easy navigation and increases the interactivity of the web page. This article will introduce how to use HTML, CSS and jQuery to build a beautiful scrolling tab navigation, and provide specific code examples. First, we need to understand the basic structure of HTML. Here is a simple HTML code example: <!DOC

2023-10-26 comment 0 1152

How to increase the font size in pycharm

Course Introduction：Enlarging fonts in PyCharm improves code readability and eye comfort. Here are the steps: Open Settings (File > Settings) Navigate to Editor > Font In the Font drop-down menu, select the desired font size Click Apply to save changes

2024-04-03 comment 0 984

How to use CSS3 to create beautiful and interactive buttons

Course Introduction：In modern web design, buttons have always been one of the indispensable elements. Whether in form input, navigation menus, or page interactions, buttons are the key to user action. In order to improve the user experience, we need to pay attention to the beauty and interactivity of buttons in design. CSS3 technology provides many native button styles and properties. This article will introduce how to use CSS3 to implement beautiful and highly interactive buttons. 1. Basic CSS styles First, let’s define some basic CSS styles. In HTML, we often use "<button>

2023-04-25 comment 0 812

What are the common applications of JavaScript?

Course Introduction：JavaScript is a programming language widely used in modern web development to create interactive and dynamic web applications using HTML and CSS. Common application scenarios of JavaScript will be introduced below. 1. Front-end development of dynamic web page effects is one of the main application areas of JavaScript. JavaScript can realize various web page interactive effects, such as carousels, dynamic navigation menus, pop-up windows, drop-down boxes, tabs, scrolling loading, lazy loading, and search.

2023-05-26 comment 0 943

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