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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11328

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 17632

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 11341

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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动态页面静态化后怎的根据不同用户的登录信息

Course Introduction：动态页面静态化后怎样根据不同用户的登录信息？大神们好，最近在研究动态网站静态化的问题。就是一个index.php页面，一个模板php页面生成的index.shtml页面。index.php页面的代码：

2016-06-13 comment 0 1011

Shenzhen website construction system: display different customer service information according to the website language, Shenzhen website construction_PHP tutorial

Course Introduction：Shenzhen website construction system: displays different customer service information according to the website language, Shenzhen website construction. Shenzhen website construction system: displays different customer service information according to the website language. The original program of Shenzhen website construction defaults to a dynamic language program, although it can generate static files, such as English

2016-07-13 comment 0 1112

What is the role of C++ metaprogramming in ensuring code safety and correctness?

Course Introduction：Metaprogramming can significantly improve the safety, correctness, and maintainability of C++ code. It is based on the ability to inspect type information in code to implement static assertions. Generate type-safe code using template metaphysics. Static checking of error conditions in error handling.

2024-06-02 comment 0 1148

What are some errors and diagnostic techniques for C++ templates?

Course Introduction：Tips for Diagnosing C++ Template Errors Check compiler error messages. Use the -g and -gstl compilation flags to generate debugging information. Use the gdb debugger to step through template instantiation. Use static analysis tools to find potential errors.

2024-06-04 comment 0 651

How to create a resume using bootstrap

Course Introduction：Pay attention to the following points: the path of Bootstrap related files; Bootstrap depends on jQuery; jQuery needs to be loaded first. Use an HTML template to write a personal resume, set basic information, project skills, project display and other information, and use CSS to statically modify the web page.

2019-07-13 comment 0 5957

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