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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11308

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

Course Advanced 11324

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 make a responsive scroll navigation using HTML, CSS and jQuery

Course Introduction：How to use HTML, CSS and jQuery to create a responsive scroll navigation Navigation menu plays a very important role in web design, it can help users quickly locate and navigate to different web page parts. For responsive websites, we need to ensure that the navigation menu can display and operate normally on different screen sizes. This article will introduce how to use HTML, CSS and jQuery to make a responsive scroll navigation, and provide detailed code examples. 1. HTML structure First, we need to define navigation

2023-10-24 comment 0 1342

What are the characteristics of sticky positioning?

Course Introduction：Sticky positioning is a common page layout method that allows an element to remain fixed at a specific position on the page when scrolling and is not affected by the scrolling action. This layout is very useful in implementing navigation menus and maintaining the visibility of fixed elements on the page. The following will introduce the characteristics of sticky positioning and specific code examples. The characteristics of sticky positioning mainly include the following points: The element always stays at the specified position: No matter how the page is scrolled, the sticky positioned element will be fixed at the specified position and will not move or disappear due to scrolling. OK

2024-02-19 comment 0 442

What does fixed mean in css

Course Introduction：Fixed positioning in CSS anchors an element to the browser window so that it does not move as the page scrolls. Use the CSS code "element { position: fixed; }" to apply fixed positioning. Its advantages include elements remaining visible, suitable for creating sticky elements and creating parallax effects. Disadvantages include scrolling issues, long loading times, and not being suitable for responsive designs.

2024-04-26 comment 0 734

How to use JavaScript to scroll a web page to a specified position?

Course Introduction：How to use JavaScript to scroll a web page to a specified position? In web development, we often encounter the need to scroll to a specified position. For example, after clicking the navigation menu on the page, the page will automatically scroll to the corresponding content area. This article will introduce how to use JavaScript to achieve this function and provide specific code examples. 1. Use the scrollIntoView() method. JavaScript provides a method called scrollIn.

2023-10-20 comment 0 2490

A Practical Guide to Tips and Tricks for Fixed Positioning Properties in CSS

Course Introduction：To master the tips and tricks of fixed positioning positioning properties in CSS, specific code examples are required. Fixed positioning in CSS is a special positioning method that positions elements relative to the browser window. In web design, this positioning method is often used to create elements that are adsorbed to a certain location on the page and do not scroll with the scroll bar, such as navigation bars or advertising columns. This article will introduce the positioning attributes of fixed positioning, including commonly used attribute values, as well as code examples. First, the calculation base for fixed positioning is the viewport of the browser window and is not affected by document flow. under

2023-12-28 comment 0 881

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