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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11245

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 17581

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 11291

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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Java installation tutorial: Zero basic learning, quickly start programming

Course Introduction：Java is a programming language widely used in various fields. It has good cross-platform properties and powerful functions, and is the first choice of many developers. For people who have no programming foundation, it may be difficult to learn Java, but as long as you follow the correct steps to install and learn, you can quickly start programming. This article will provide you with a Java installation tutorial, teach you how to learn Java from scratch, and give specific code examples. Step 1: Download and install JavaDevelopment

2024-02-20 comment 0 447

Java development tutorial: Implementing the wind speed monitoring function of IoT hardware

Course Introduction：Java development tutorial: To implement the wind speed monitoring function of IoT hardware, specific code examples are required. Introduction: With the rapid development of IoT technology, more and more hardware devices are connected to the network, allowing us to monitor these devices through the Internet. Monitor and control. This article will introduce how to use Java to develop and implement the wind speed monitoring function of IoT hardware, and give specific code examples. 1. Environment configuration: Before starting to write code, we need to prepare the following environment: Download and install JavaDevelopment

2023-09-19 comment 0 1225

A concise and easy-to-understand guide to configuring Java environment variables

Course Introduction：A concise and easy-to-understand guide to configuring Java environment variables. Java is a cross-platform programming language that is both portable and efficient. Configuring the correct environment variables is a very important step when writing and running Java programs. This article will provide you with a concise and easy-to-understand guide to configuring Java environment variables, as well as specific code examples. Download and install JavaDevelopmentKit (JDK) First, you need to download and install JavaDevelopment from Oracle’s official website

2024-02-22 comment 0 837

Java Installation Guide: Detailed Steps to Download to Configuration

Course Introduction：Java Installation Tutorial: Detailed steps from download to configuration, specific code examples required Java is a cross-platform programming language that is widely used to develop various types of applications. Before you start learning and using Java, you first need to install the Java development environment on your computer. This article will provide a detailed Java installation tutorial, all steps from download to configuration, and provide specific code examples. Step 1: Download JavaJDK First, we need to download JavaDevelopment

2023-12-28 comment 0 1192

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