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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11317

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 11331

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 use the flex property of CSS3 to create a waterfall flow layout effect?

Course Introduction：How to use the flex property of CSS3 to create a waterfall flow layout effect? In web design, Waterfall Layout is a common and popular page layout method. It is characterized by presenting content in irregular columns and row heights, creating a waterfall-like aesthetic. In the past, implementing a waterfall layout required using complex JavaScript code to calculate the position and size of elements. However, with the development of CSS3, we can use its powerful flex property to make it simpler

2023-09-09 comment 0 955

How to use the flex feature of CSS3 to optimize the layout effect of web pages?

Course Introduction：How to use the flex feature of CSS3 to optimize the layout effect of web pages? Nowadays, web design has become an art. In the past, we used the traditional box model and floating layout to achieve web page layout effects, but this method has many limitations and the display effect is inconsistent on different devices. The flex feature of CSS3 provides us with a more flexible and powerful way to layout web pages. This article will introduce how to use the flex feature of CSS3 to optimize the layout of web pages, and provide some practical codes.

2023-09-08 comment 0 764

How to change the slide layout to two columns of content

Course Introduction：How to change the slide layout to two columns of content: Click the "Layout" button in the start menu, select two columns of content in the layout effect that appears, and you can set the slide layout to two columns of content.

2019-06-17 comment 0 47341

CSS interlaced color changing tutorial

Course Introduction：We know that in HTML, the color difference layout effect is required before the ul and li lists. So how to use css to change the color of ul li in alternate rows? Today I will give you an example to demonstrate.

2017-11-29 comment 0 2978

Detailed explanation of examples of table layout

Course Introduction：1. First look at the layout effect with spacing: 2. Talk less and do more, look directly at the code (there are comments in the code) 1 <!DOCTYPE html> 2 <html lang="zh"> 3 4 <head> 5 <meta charset ="UTF-8" /> 6 <meta http-equiv="X-UA-Com

2017-06-28 comment 0 1980

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