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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11360

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 17663

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 11379

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 RGB protocol

Course Introduction：The RGB protocol is a protocol for representing colors in computers that uses values (0-255) of three channels (red, green, and blue) to define a color range (gamut). The RGB protocol works by using additive color mixing to create colors, encoding to represent colors in hexadecimal codes, and is widely used in computer graphics and digital devices.

2024-07-23 comment 0 1081

Colorful Source N14 All-in-One AI PC Moyun Blueprint Award: Simple and profound, restrained business

Course Introduction：Recently, Colorful launched its first AIPC with high computing power, the N14 all-round notebook. This is Colorful’s ultra-thin series of all-round portable AIPC notebooks with high computing power for workplace business, AI art creation and game players. It has a thin, compact body and Powerful performance and AI computing power. At present, this website has obtained the Colorful Source N14 all-round notebook AIPC in dark blue color. Without further ado, here are the unboxing pictures for you. The packaging box of Colorful Source N14 is black, with a wavy star dot matrix pattern on the front and the words "EPOCHLAPTOPSIMPLIFYEXCELLENCE", which is simple and a bit sci-fi. As an all-round AIPC, Colorful Source N14 is designed to be as business-friendly as possible.

2024-07-23 comment 0 500

How to Detect Green Objects in Images with OpenCV: A Step-by-Step Guide Using HSV Color Space?

Course Introduction：Detecting Green Objects in Natural Images with OpenCVImage segmentation is a crucial task in computer vision, allowing objects of interest to be...

2024-11-02 comment 0 1068

awc.exe - What is awc.exe?

Course Introduction：What is awc.exe doing on my computer? awc.exe is the process of IObit’s Advanced SystemCare. Once you found awc.exe in task manager, you can find a blue “C” locating your right bottom of System Tray. awc.exe means it is working at this moment. I

2024-08-26 comment 0 463

How to adjust image tone using PHP and OpenCV libraries

Course Introduction：Method of image tone adjustment using PHP and OpenCV libraries Introduction: Image processing is an important research field in computer science, and image tone adjustment is one of the common operations in image processing. This article will introduce how to use PHP and OpenCV libraries to adjust image tone, and provide corresponding code examples. 1. Introduction to PHP and OpenCV libraries PHP is a commonly used server-side scripting language, while OpenCV is an open source computer vision library widely used in the field of image and video processing.

2023-07-17 comment 0 810

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