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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11312

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 17625

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 11329

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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Customize a simple and fashionable js drop-down selection box_javascript skills

Course Introduction：The drop-down selection box is something we often use in web pages. In this article, we will introduce in detail the drop-down selection box using js.

2016-05-16 comment 0 1018

Yii-custom delete confirmation pop-up box (zyd) jquery implementation code_jquery

Course Introduction：Yii-customized deletion confirmation pop-up box (zyd), simple/fashionable/generous, suitable for people who love coolness. If you are fashionable, don’t miss it. I hope the knowledge points in this article can help you.

2016-05-16 comment 0 1357

jQuery large image on the left, small image on the right, focus image slideshow switching code sharing_jquery

Course Introduction：This article mainly introduces the jQuery slideshow switching effect of the large picture on the left and the small picture on the right, and the focus picture switching code with thumbnails. It is simple, fashionable and generous. Friends in need can refer to it.

2016-05-16 comment 0 1233

Comprehensive review of Samsung S21 phone

Course Introduction：As the latest generation of Samsung's flagship mobile phone, Samsung S21 has attracted the attention of consumers with its excellent photography functions and smooth experience. This article will provide a comprehensive review of the phone’s strengths and highlights. Appearance design - simple and fashionable, with outstanding feel. The body lines are simple and smooth, and the glass material on the back shows a high-end feel. The Samsung S21 mobile phone adopts a simple and fashionable design style. It feels comfortable in the hand and provides good anti-slip function, and it also achieves good grip. Display - Smooth and delicate, outstanding picture quality, delicate and lifelike picture quality, 2-inch dynamic AMOLED display, Samsung S21 is equipped with a 6, resolution of 3200x1440 pixels, and high color saturation. The screen also supports a 120Hz refresh rate, allowing the phone to slide

2024-02-02 comment 0 729

JQuery implements a simple, fashionable and fast bubble prompt plug-in_jquery

Course Introduction：After the program is submitted, in order to improve the user experience, we need to verify and prompt the error location. Using JQuery, we can easily implement bubble prompts. Friends who need it can learn more.

2016-05-16 comment 0 1181

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