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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11327

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 17632

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 11338

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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Analyst agency: China's gaming market's total revenue last year was US$45.5 billion, accounting for 1/3 of the world's

Course Introduction：According to news from this site on August 22, according to the latest report released by NikoPartner, the total revenue of my country's PC, mobile games and console game markets in 2022 will be 45.5 billion US dollars (this site's note: currently about 331.695 billion yuan). In terms of PC games, the company stated that "China remains the world's largest market, and one-third of global PC game revenue comes from domestic spending." China's PC game revenue in 2022 will be US$14.2 billion (currently approximately 103.518 billion yuan). ▲Image source NikoPartner Company In terms of mobile games, 31% of the total game expenditures of domestic players are mobile games. China is also the world’s largest mobile game market, with 31.7% of global mobile game revenue coming from domestic spending, 202

2023-08-23 comment 0 1297

Tencent: WeChat Hong Kong Wallet further expands transportation scenarios in the mainland, and 30 cities including Beijing already support scanning QR codes to take rides

Course Introduction：According to news from this website on June 27, Tencent Public Relations Director Zhang Jun said that WeChat PayHK further expanded the mainland’s transportation scene yesterday, achieving full coverage of the public transportation network in Beijing, Shanghai, Guangzhou and Shenzhen. According to reports, the new cities include Beijing, Huizhou, Jiangmen, Qingyuan, Shaoguan, Heyuan, Shantou, Shanwei, Jieyang, Lijiang, Quanzhou, Ningbo, Suzhou, etc. Currently, 30 cities support scanning QR codes to ride. According to reports, through the "Cross-Border Travel" section of WeChat Hong Kong Wallet, users can choose to open a bus or subway code in the corresponding city, and conveniently scan the code to take the bus without queuing to buy tickets, and the fare will be settled at a preferential exchange rate. Note on this site: Users register WeChat or WeChat through a Hong Kong mobile phone number and open a WeChat payment Hong Kong dollar wallet (WeChatPa

2024-06-27 comment 0 593

It is reported that Lotus plans to complete the merger and acquisition transaction through SPAC next month, adding another member of the 'Geely family' listed companies

Course Introduction：According to the news of this website on November 13, according to the Financial Associated Press, reporters learned from multiple independent sources that Lotus, which was listed in the United States through SPAC, plans to complete the merger and acquisition transaction next month and officially log on to Nasdaq. Code "LOT". In response to this news, Lotus said that the company's listing work is continuing to advance in the expected direction. Another Lotus insider revealed, “The company is currently waiting for confirmation from relevant regulatory agencies.” ▲ Picture source Lotus official website As early as February this year, there was news that Lotus and the special purpose acquisition company LCatterton Asia AcquisitionCorp (LCAA) Reached a final merger agreement, agreeing that both parties will be listed on Nasdaq after the merger is completed, and the merged company will retain "Lotus"

2023-11-13 comment 0 911

Counterpoint: More than 500 mobile phone brands around the world have disappeared in the past few years

Course Introduction：According to news from this site on September 25, according to Counterpoint, nearly 500 mobile phone brands have disappeared from the market from 2017 to 2023. In 2017, there were more than 700 mobile phone brands in the world, but by 2023, only a few will remain. To 250, the total has been reduced by 2/3. ▲Image source CounterpointCounterpoint believes that the reason for the continuous decline in the number of mobile phone brands is mainly due to the gradual saturation of the market, competition between brands, the lack of supply chain bargaining power and required resources by small companies, and the technological upgrade from 4G to 5G and other consumers. Ask for promotion, etc. ▲Image source Counterpoint analysts believe that small brands are more affected by industry headwinds. In the past three years,

2023-09-25 comment 0 1371

Tatsuo Eguchi, President of Sony Interactive Entertainment (Shanghai) Co., Ltd.: In China, players' favorite game is 'Genshin Impact”

Course Introduction：According to news from this site on August 2, at the China Joy 2023 game exhibition, Japanese media 4Gamer interviewed Tatsuo Eguchi, chairman and president of Shanghai Sony Interactive Entertainment (SIE). In the interview, Tatsuo Eguchi revealed the business status of PlayStation consoles in the Chinese market, and praised miHoYo's influence in the game industry. The following is the relevant interview content compiled by this site: Tatsuo Eguchi said that China has now It is the world's largest game market, but the market is still dominated by mobile games, followed by PC games. Home game consoles are still a minority in the Chinese market. Although the spread speed of PS5 is twice that of PS4, China is still in a "The stage of promoting console games." For example, at the ChinaJoy Sony booth

2023-08-05 comment 0 1298

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