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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11218

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 17561

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 11273

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 build a PHP online mall flow chart

Course Introduction：How to build a PHP online mall flow chart In today's digital world, more and more companies choose to build their digital malls to better serve users and expand their businesses. PHP online mall is a common e-commerce platform. Constructing its flow chart can facilitate developers and designers to quickly understand its business processes and technical framework, and achieve effective management and efficient optimization. The following are the general steps for building a PHP online mall flow chart: Step 1: Explore the main technologies used in the PHP online mall architectureUsed in the PHP online mall architecture

2023-04-11 comment 0 658

Using Google Cloud Functions for Three-Tier Data Processing with Google Composer and Automated Deployments via GitHub Actions

Course Introduction：Table of Contents About Tools Used Solution Architecture Diagram Deployment Process Prerequisites Secrets for GitHub Actions To create a new secret: Setting Up the DevOps Service Account GitHub Actions Pipeline: Steps enable-services d

2024-10-26 comment 0 858

Analyze the key steps of microservice development in Go language to help you get started quickly

Course Introduction：Quick Start Analysis of Key Steps in Go Language Microservice Development With the advent of the era of cloud computing and big data, microservices architecture (Microservices Architecture) has also become a popular architecture pattern. As a programming language with high efficiency, strong performance and outstanding concurrency capabilities, Go language is widely used in microservice development. This article will introduce the key steps on how to quickly get started with Go language microservice development and provide specific code examples. 1. Set up a development environment and start Go language microservice development

2024-01-23 comment 0 1313

How to use HTML, CSS and jQuery to create a responsive image switching effect

Course Introduction：Creating responsive image switching effects is one of the common tasks in front-end development. In this article, we will use HTML, CSS and jQuery to achieve this effect. Below are detailed steps and specific code examples. HTML structure First, we need to create the HTML structure required for the image switching effect. You can use the following code example to create a simple HTML structure. <divclass="slider-container">

2023-10-24 comment 0 926

Detailed explanation of steps and techniques for microservice development in Go language

Course Introduction：An in-depth analysis of the steps and techniques for microservice development in Go language. Introduction With the development of cloud computing and containerization technology, microservice architecture has become more and more popular. As an efficient, concise, and concurrency-safe programming language, Go language has become an ideal choice for building microservices. This article will deeply analyze the steps and techniques of Go language microservice development, and provide specific code examples to help readers better understand and apply them. Design and Planning Before you start developing microservices, you first need to design and plan. This includes defining the functionality and boundaries of the service, breaking down

2024-01-23 comment 0 1242

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