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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11302

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 17615

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 11321

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 does a Java framework balance functionality and performance?

Course Introduction：Balancing functionality and performance of a Java framework is crucial. Consider the trade-off between your application's need for functionality and the performance impact and choose a framework that meets your specific requirements. Balance performance by optimizing technologies such as caching and lightweight template engines and avoiding overuse of framework features.

2024-06-05 comment 0 956

What are the vue front-end frameworks?

Course Introduction：Vue is a popular JavaScript framework for building interactive user interfaces. It is known for its simplicity, flexibility, high performance, and great developer experience. Its benefits include: responsive data binding, automatically tracking data changes and updating the UI. Component system encourages code reuse and modular development. Lightweight and high performance. Active community. Continuously updated.

2024-04-06 comment 0 915

what are thinkphp and smarty

Course Introduction：thinkphp is an open source lightweight PHP framework that is used to simplify enterprise application development and agile WEB application development; using ThinkPHP, developers can develop and deploy applications more conveniently and quickly. Smarty is a PHP template engine that can better help developers separate program logic and page display (separation of business logic and display logic), so that programmers can change the logic content of the program without affecting the page design of the front-end staff, and the front-end staff can re- Modifying the page will not affect the program logic of the program.

2022-06-14 comment 0 2447

The advantages and disadvantages of Golang technology in the field of cloud computing

Course Introduction：The advantages of Go technology in the field of cloud computing include: efficient concurrency, improved application performance and scalability, lightweight, optimized resource utilization, powerful tool support, simplified development process, built-in cloud library, and easy integration with cloud platforms. Disadvantages include: Ecology Smaller system, limits available libraries and tools Garbage collector, may affect real-time application performance Novice learning curve, requires time to understand concurrency models and memory management methods

2024-05-09 comment 0 784

What are the characteristics of vue framework

Course Introduction：The Vue framework is famous for its lightweight, flexibility, reusability, data binding, responsiveness and virtual DOM. It is ideal for building small to large applications and enables modularity and code reuse through the use of components. Vue's two-way data binding system simplifies application state management, while its reactive system enables a smooth user experience. In addition, Vue's virtual DOM improves update efficiency, and its declarative rendering style and active community support further enhance the developer experience.

2024-04-06 comment 0 1074

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