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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11449

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 17735

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 11438

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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Where did the Bitcoin pin come from? A complete explanation of the Bitcoin pin principle in one article

Course Introduction：As for why it is called a pin, it is actually because its K-line chart looks like a needle. Because the Bitcoin K-line chart will show a long upward or downward shadow line, so people call this operation It's called a pin. Where did the Bitcoin pin come from? In the cryptocurrency market, the pin phenomenon refers to the sharp fluctuation in the price of a certain cryptocurrency in a short period of time, and then quickly returns to a stable price level. Bitcoin is the first decentralized cryptocurrency, born in 2009, and many similar cryptocurrencies have since emerged. The phenomenon of pin insertion may be caused by factors such as market speculation, news influence, or investor sentiment fluctuations. Investors need to be careful about the phenomenon of pin insertion and avoid blindly following the trend or panic selling. Cryptocurrency market volatility is high, investors should remain calm

2024-03-07 comment 0 1220

Solana perpetual contract exchange Drift will launch governance token DRIFT! Airdrop 100 million coins to users

Course Introduction：DriftProtocol, the Solana ecological decentralized derivatives trading platform, announced yesterday (16th) that it will soon launch the governance token "DRIFT" and expects to airdrop 100 million tokens to qualified users "in the next few weeks." DriftProtocol was officially launched in October 2021. It is currently the largest perpetual contract exchange in the Solana ecosystem. To date, its cumulative trading volume has exceeded US$21 billion and 16.2 million transactions. Its main product is crypto that provides speculators with up to 20x leverage. Currency Perpetual Contract Trading. In addition, Drift also offers spot trading and a range of financial instruments. DriftProtocol is now trying to decentralize its operations by issuing governance tokens, allowing

2024-04-17 comment 0 509

How to become a competent 'rebel' in 'Resonas' | Attached is the daily task process

Course Introduction：The recently launched train management adventure RPG mobile game "Resonas" has aroused heated discussions among netizens for its running gameplay. Cyber fraud? Buy low, sell high? It’s hard to imagine that a mobile game can have such rich gameplay elements. Are you still worried about not purchasing books? Are you running out of money as a dealer after upgrading various equipment? It doesn’t matter! Join the handmade manufacturing industry in "Resonas" and give full play to the wisdom of human industry. , low-cost and high-return advanced gameplay is waiting for you to learn! It has been observed that the bad guys spend a lot of purchasing books when purchasing in the early stage, and then there will be a situation of weak purchasing. So when the number of purchasing books is insufficient, it is recommended that everyone Expand the business map to the manufacturing and processing industry. First, go to the Gold Rush Park to find Joshua and exchange it for a guide on how to make pure gold thread materials.

2024-03-12 comment 0 1253

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 1271

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 1130

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