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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11421

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 17715

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 11414

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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Meme Coins Gain Bullish Momentum Ahead of US Presidential Elections

Course Introduction：Meme coins gained bullish momentum just hours before the U.S. presidential election while the broader market is wandering in the bearish zone.

2024-11-05 comment 0 526

'AALTO HAPS Zephyr UAV high-altitude base station plan is expected to enter commercial operation next year'

Course Introduction：Thank you very much to IT House netizens for providing clues and submissions! News on December 3, 2021 showed that AALTOHAPS, a subsidiary of Airbus, announced that the drone high-altitude base station Zephyr will begin commercial operations next year. The base station is powered by solar energy and can stay in the stratosphere for several days. AALTOHAPS CEO Samer Halawi said the company will first establish its first hub in Kenya to start commercial operations. Samer Halawi said it can basically fly "for up to 200 days" in the stratosphere, which is about 20 to 50 kilometers above the surface, the height where weather balloons usually fly, where it can serve as a cellular tower in the sky AALTO The goal is to

2023-12-04 comment 0 1305

Introduction to Delusion Mountain Sea and Space Method

Course Introduction：Many friends in the game Delusion Mountains and Seas want to know how to go to space? Do you want to go to space? The editor below will bring you an introduction to the method of delusion mountain, sea and space, come and take a look. How to go to space in Delusion Mountains and Seas 1. Players first need to prepare a flying creature. 2. Players can take to the sky by riding flying creatures. 3. Players can see the atmosphere appear after flying in the sky for about 5-6 minutes. 4. After breaking through the atmosphere, players can approach space. 5. After the player flies for a while, he can enter space. 6. Players can choose the planet they want to go to.

2024-07-18 comment 0 347

Apple responds to sharp drop in revenue in China! Cook says iPhone is the best-selling model in China, but not one of the four

Course Introduction：According to news on February 2, Apple announced its financial report today. Revenue in Greater China has declined significantly. Subsequently, Apple CFO Luca Maestri (Luca Maestri) said that the company was not satisfied with the decline in revenue in China, but the Chinese market contained major long-term opportunities. In addition to the unsatisfactory performance of the Chinese market, Maestri also warned that Apple's revenue growth may not be sustainable. The financial report shows that Apple’s revenue in Greater China for the quarter was US$20.8 billion, a decrease of 13% from US$23.9 billion in the same period last year. Cook said that this is not a big problem. Cook bluntly stated that Apple's revenue decline was not due to the loss of iPhone popularity, but a reflection of overall economic problems. In addition, Cook also emphasized that 2

2024-02-02 comment 0 446

jquery convert to uppercase

Course Introduction：jQuery to uppercase jQuery is a popular JavaScript library used to simplify JavaScript programming and HTML document traversal and manipulation. When writing code, sometimes you need to convert jQuery code to uppercase for easier reading and understanding. Before converting jQuery to uppercase, we need to understand some basic jQuery syntax and common functions. Here are some common jQuery functions and usage: 1. $(selector):

2023-05-12 comment 0 695

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