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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11314

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 17628

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 11330

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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jQuery fixed element plug-in scrolltofixed usage guide_jquery

Course Introduction：ScrollToFixed (jquery Fixed plugin) can fix the navigation or header of a web page at the top or bottom, making it easier for users to operate or view information. In addition to navigation and headers, other content can also be fixed, such as advertisements, return to top, etc.

2016-05-16 comment 0 1776

What are the criteria for sticky positioning? Analyze common sticky positioning issues

Course Introduction：Sticky positioning refers to fixing an element at a specific position on the page, that is, the element will remain in a fixed position as the page scrolls. Sticky positioning can provide a better user experience and is often used in web design. This article will analyze the standards and common problems of sticky positioning. 1. The standard for sticky positioning requires setting the positioning attribute to sticky. In CSS, sticky positioning requires setting the positioning attribute of the element to sticky. This can be achieved by setting position:sticky. Sticky positioned elements

2024-01-28 comment 0 1200

How to set fixed positioning in bootstrap

Course Introduction：In bootstrap, you can use the Affix plug-in to set fixed positioning. The plug-in can fix the positioning of any element through the custom attribute data. The syntax is "<element data-spy="affix" data-offset="The distance between the element and the top is Distance">".

2022-05-06 comment 0 3282

uniapp develops Ele.me WeChat applet home page sticky sticky positioning layout

Course Introduction：Sticky positioning is mainly used to monitor scroll events. During the sliding process, when the distance between an element and its parent element reaches the sticky requirement (such as top:100px); the effect of position:sticky at this time is equivalent to fixed. niche

2021-10-19 comment 0 6149

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