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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11332

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 17635

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 11348

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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js imitation Baidu Tieba verification code special effects example code_javascript skills

Course Introduction：This article mainly introduces the JS imitation Baidu Tieba verification code special effects example code. Friends in need can refer to it.

2016-05-16 comment 0 910

How to add a green light scan effect to a video in a video clip How to add a green light scan effect to a video

Course Introduction：1. First, open the editing interface and click the material library button in the media menu, find an anime-themed video in the search bar and add it to the track 2. Then, click the special effects button in the main menu, and click add in the light and shadow classification column. Light scan the special effect and adjust its video track duration to the same length as the material 3. Finally, in the special effects panel on the right side of the player, change the color to 70 and click play

2024-06-06 comment 0 1006

jQuery html5 css3 implements rounded corner non-refresh form with input verification function code_jquery

Course Introduction：This article mainly introduces jQuery html5 css3 to implement rounded corner non-refresh form with input verification function code. It adds html5 and css3 technology to make the entire form effect more beautiful and gorgeous. Friends who need it can refer to it.

2016-05-16 comment 0 1967

How to use Vue to implement verification code countdown effects

Course Introduction：How to use Vue to implement verification code countdown effects. With the development of the Internet, verification codes have become one of the important means to protect user security. In order to improve user experience, we can use countdown effects to remind users of the remaining time to obtain the verification code. This article will introduce how to use Vue to implement the special effects of verification code countdown, and provide specific code examples. First, we need to create a Vue component to implement the verification code countdown function. In this component, we can define a countdown time variable to store the remaining seconds

2023-09-19 comment 0 782

Ajax implements partial refresh login interface with verification code

Course Introduction：Many login interfaces have the verification code function ajax partial refresh effect. Next, through this article, I will share with you the ajax partial refresh login interface with verification code. Friends who are interested in ajax should take a look.

2018-05-14 comment 0 3381

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