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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11332

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 17635

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 11348

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 software is openal?

Course Introduction：openal is an API used for sound effect buffering and listening encoding. It is a cross-platform sound effect API in the free software world; the full name of openal is "Open Audio Library", which is used by "Loki Software" on Windows and Linux systems. OpenAL is designed for many Special effects performance of channel three-dimensional position sound effects.

2022-07-28 comment 0 23560

What is the use of openal?

Course Introduction：The functions of openal include 3D sound effects, multi-channel audio, audio spatial positioning, audio format support, audio effects processing, cross-platform support and other functions. Detailed introduction: 1. 3D sound effects, OpenAL can simulate real 3D sound effects. By controlling the position, direction, distance and volume of audio parameters, the listener can feel the audio coming from different directions and distances; 2. Multi-channel audio, OpenAL Supports the playback and mixing of multi-channel audio, and can play multiple sound sources at the same time and mix them; 3. Audio spatial positioning, etc.

2023-08-21 comment 0 3657

what is openal

Course Introduction：OpenAL is an open cross-platform audio library for handling the playback and mixing of 3D audio and multi-channel audio. It was developed by Creative Labs and was originally used for game development, but is now widely used in multimedia applications, virtual Reality, augmented reality and audio editing. OpenAL provides developers with an API to control audio effects, which can be used for the development of games, multimedia applications and other audio-related software.

2023-08-21 comment 0 13462

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