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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.

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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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Making a digital clock based on jQuery and CSS3 with source code download (jquery)_jquery

Course Introduction：This article is based on jquery to make the digital clock really run, and implement a web version of the digital clock with the date and day of the week. The effect is very realistic. Friends who are interested should take a look.

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jquery implements digital scrolling effects

Course Introduction：This time I will bring you jquery to implement digital scrolling special effects. What are the precautions for jquery to implement digital scrolling special effects? Here is a practical case, let’s take a look.

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How to use Vue to implement clock countdown effects

Course Introduction：How to use Vue to implement clock countdown special effects Introduction: Clock countdown is a common special effect, often used in countdown activities, flash sale activities and other scenarios. This article will introduce how to use the Vue framework to implement clock countdown effects and provide specific code examples. 1. Preparation work Before starting to use Vue to implement the clock countdown effect, you need to prepare the following aspects: Install Vue: First, make sure that the Vue development environment has been installed, which can be installed through npm or CDN. Create a Vue project: Create

2023-09-19 comment 0 1559

Example of how JavaScript implements a digital sliding clock effect

Course Introduction：This article introduces in detail an example of how JavaScript can achieve the digital sliding clock effect, which has certain reference value. Let’s take a look at it~

2017-08-13 comment 0 1430

How to use Vue to implement digital animation special effects

Course Introduction：How to use Vue to implement digital animation special effects Preface: In web applications, digital animation special effects are often used to display statistical data, countdowns, or other scenes that need to highlight the effects of digital changes. As a popular JavaScript framework, Vue provides rich data binding and transition animation functions, which is very suitable for realizing digital animation special effects. This article will introduce how to use Vue to implement digital animation special effects and provide specific code examples. 1. Set initial data: First, we need to set a variable in the Vue component

2023-09-21 comment 0 1768

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