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Self-study IT network Linux load balancing video tutorial

Course Intermediate 10928

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

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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 10632

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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What is the difference between Pytest and Unittest in Python?

Course Introduction：1. Installation and use In terms of installation, Unittest is definitely better because there is no need to install it. Unittest belongs to the Python standard library and is installed when installing Python. The installation of Pytest only needs to be installed through pip, which is not complicated. The above is the installation, but what about use? Pytest is more flexible in use and can use various options on the command line to execute tests, while Unittest requires writing test cases in scripts and using the Unittest module to run tests. Pytest gets more points at this point. 2. Writing test cases Pytest and Unittest also have some differences in writing test cases. Compared to Unittest

2023-05-08 comment 0 1196

How unittest+coverage performs unit test coverage

Course Introduction：This time I will show you how unittest+coverage performs unit test coverage, and what are the precautions for unittest+coverage to perform unit test coverage. The following is a practical case, let's take a look.

2018-04-09 comment 0 2078

Python server programming: unit testing using unittest

Course Introduction：With the popularity of Python server-side applications, testing has become extremely important, and developers must ensure the quality and stability of their code. Unit testing is an effective testing method that can help developers check the correctness and reliability of the code. In Python server-side development, unittest is a powerful tool that can help us implement automated testing, report errors, and ensure code quality. Introduction to unittest unittest is the unit test box that comes with the Python language

2023-06-18 comment 0 868

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