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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11312

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 17622

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 11329

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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The world's first modular marine elevator under Guangzhou Shipbuilding International is launched: the installation and commissioning cycle on board can be shortened by 90%

Course Introduction：According to news from this website on August 12, Guangzhou Shipbuilding International Co., Ltd. issued a document today announcing that the first modular marine elevator independently developed by Guangdong Guangzhou Shipbuilding International Elevator Mechanical and Electrical Equipment Co., Ltd. (a subsidiary of China State Shipbuilding International) was completed on August 9. The installation and all tests mark the world’s first example of a modular marine elevator. ▲Picture source is the official public account of Guangzhou Shipyard International Co., Ltd. According to reports, the modular marine elevator has signed orders for 8 ships and will be used for the first time in the first shipbuilding of the 8,600-car LNG dual-fuel car carrier built by Guangzhou Shipyard International. It is expected that the shipboard installation and commissioning cycle can be shortened by 90%. This site learned that after the modular marine elevator is installed and debugged on the workshop test tower, it can be transported to the construction site through modular disassembly and assembly, and the overall hoisting and on-site solidification behind the enclosed shaft

2024-08-13 comment 0 285

Xuanpai Xuanpanda PD87M series all-aluminum mechanical keyboard goes on sale in September: three-mode connection, quick-release structure, starting from 479 yuan

Course Introduction：According to news from this website on August 21, Xuanpai Xuanpanda PD87M series of all-aluminum mechanical keyboards were released in July this year. This series of keyboards adopts a quick-release structure and supports three-mode connection. It will be launched in September, starting from 479 yuan. According to reports, Black Panda PD87M series keyboards are made of all-aluminum alloy; supplemented by a bead-touch quick-release Gasket structure, the appearance is screw-free. The standard version is equipped with PC slotted positioning plates, and the Pro is equipped with FR4 immersed gold positioning plates. The standard version of this series of keyboards is equipped with a 5000mAh battery, and the Pro version is equipped with a 10000mAh battery. It is available in four colors, including fluctuating silver and cold black using anodizing technology, jade white using electrophoresis technology, and Qingshan blue using powder spraying technology. PD87M series keyboard adopts magnetic suction pin power connection design;

2024-08-21 comment 0 718

How to install win7 operating system on computer

Course Introduction：Among computer operating systems, WIN7 system is a very classic computer operating system, so how to install win7 system? The editor below will introduce in detail how to install the win7 system on your computer. 1. First download the Xiaoyu system and reinstall the system software on your desktop computer. 2. Select the win7 system and click "Install this system". 3. Then start downloading the image of the win7 system. 4. After downloading, deploy the environment, and then click Restart Now after completion. 5. After restarting the computer, the Windows Manager page will appear. We choose the second one. 6. Return to the computer pe interface to continue the installation. 7. After completion, restart the computer. 8. Finally come to the desktop and the system installation is completed. One-click installation of win7 system

2023-07-16 comment 0 1193

php-insertion sort

Course Introduction：:This article mainly introduces php-insertion sort. Students who are interested in PHP tutorials can refer to it.

2016-08-08 comment 0 1048

charles captures requests in eclipse

Course Introduction：charles captures requests in eclipse

2016-12-02 comment 0 1678

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