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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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Countdown design and front-end interaction points in PHP flash sale system

Course Introduction：Key points of countdown design and front-end interaction in PHP flash sale system Introduction: With the rapid development of the e-commerce industry, flash sale activities have become an important means for major e-commerce platforms to attract consumers. Building an efficient and reliable flash sale system is crucial for e-commerce platforms. Among them, the countdown is an important element in the flash sale system. It needs to be displayed on the front end and interact with the back end. This article will focus on the countdown design and front-end interaction points in the PHP flash sale system, and provide specific code examples. 1. Key points of countdown design: client timing

2023-09-19 comment 0 1524

Javascript implements product flash sale countdown (time synchronized with server time)_javascript skills

Course Introduction：In some shopping malls, we often see many products doing flash sale activities, which is a countdown. This article will introduce Javascript to implement product flash sale countdown (the time is synchronized with the server time). Friends who need it can learn about it.

2016-05-16 comment 0 1889

jquery countdown effect to realize flash sale idea_jquery

Course Introduction：The company has made a flash sale page and needs to create a countdown effect. I feel like I would like to add it to my collection. Friends who like it can also learn from it.

2016-05-16 comment 0 1082

Javascript implements flash sale, group purchase and countdown display record sharing_javascript skills

Course Introduction：This article introduces the recording method of flash sale, group purchase and countdown display using JavaScript. Friends in need can refer to it.

2016-05-16 comment 0 1154

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