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Self-study IT network Linux load balancing video tutorial

Course Intermediate 10976

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 17039

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 10737

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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Using useEffect and reactStrictMode: Optimizing React components for performance and reliability

I have a challenge, I want to load part of an array into a new array called "loadedData" and only display the loaded data, since the component is very heavy. However, on first load, I'm having a lot of problems because useEffect seems to mess it up. The first load happens twice, and the first data is pushed into the array once for each render. If I remove "reactStrictMode" it works as expected, but I don't want to "cheat" without understanding the consequences. Someone who understands the problem better than me put it in

2023-08-18 16:06:50

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

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Analyzing space mission reliability using C++

Course Introduction：Space mission reliability is critical, and C++ is a powerful language that can be used to simulate and analyze reliability. By calculating the mission reliability multiplied by the reliability of each subsystem, engineers can identify weak links and take measures to improve mission reliability, for example: Calculate Mission Reliability Analysis Lunar Landing Mission Reliability Application Reliability Analysis Tools in C++ Conduct analysis of various space missions

2024-06-01 comment 0 621

Integration of PHP and database reliability

Course Introduction：PHP is a popular open source scripting language that is widely used in the development of web applications. Many web applications require integration with databases. As one of the core components of web applications, the database carries various types of data. Therefore, the reliability of the database is crucial for the normal operation of web applications. In this article, we will explore the integration of PHP with database reliability. Database Reliability For Web applications, database reliability is crucial. Database reliability ensured

2023-05-18 comment 0 781

Data reliability practices in MySQL

Course Introduction：With the continuous development of Internet technology, the era of big data has quietly arrived. As one of the mainstream relational database management systems, MySQL is widely used in various scenarios, including e-commerce, finance, games and other fields. However, in these scenarios, MySQL is usually required to meet business needs in terms of high concurrency, large storage capacity, and high reliability. And here, we will discuss practical methods to achieve data reliability in MySQL. Database backup Data backup is an important way to ensure the reliability of data in MySQL.

2023-06-15 comment 0 1598

How to use Go language for code reliability assessment

Course Introduction：How to use Go language to evaluate code reliability. With the rapid development of software development, code reliability has gradually become one of the focuses of developers. In the Go language, through some tools and technologies, we can conduct code reliability assessment to ensure the quality and stability of our code. This article will introduce how to use Go language for code reliability assessment and provide some code examples. 1. Code static inspection tool Code static inspection is one of the important links in code reliability assessment. In Go language, we can use some static

2023-08-02 comment 0 791

How to perform data reliability verification and model evaluation in Python

Course Introduction：How to perform data reliability verification and model evaluation in Python Data reliability verification and model evaluation are very important steps when working with machine learning and data science models. This article will introduce how to use Python for data reliability verification and model evaluation, and provide specific code examples. Data Reliability Validation Data reliability validation refers to the verification of the data used to determine its quality and reliability. The following are some commonly used data available

2023-10-20 comment 0 1067

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