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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11329

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 11344

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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There are several preview methods in CorelDRAW. Introduction to previewer image types

Course Introduction：As an excellent vector drawing software, CorelDRAW has rich drawing functions and convenient and fast drawing tools, and is deeply loved by designers. Before, we talked about how to set up previews so that users can find the materials they need faster and more conveniently. Today I will introduce to you the types of preview views so that you can make better choices! The specific types are as follows: Wireframe view: This mode displays graphic outlines without color details. Quickly preview the basic elements of a drawing. 2. Normal view: PostScript fills or high-resolution bitmaps are not displayed when displaying graphics, so this mode opens and refreshes faster than "Enhanced" mode 3. Enhanced view: Outline shapes and text are displayed softer

2024-02-10 comment 0 724

Is PepeCoin worth holding for the long term? Is PepeCoin worth investing in?

Course Introduction：PepeCoin: Is it worth holding for the long term? PepeCash is an internet-based peer-to-peer cryptocurrency founded in 2016 by anonymous developers. The design of Pepe Coin is inspired by the popular Internet emoticon "Pepe the Frog", and its logo is a cute frog image. The long-term holding value of PepeCoin depends on a variety of factors, including: Inflation risk: There is no upper limit on the total number of PepeCoin, which means that the supply of PepeCoin will continue to increase, leading to inflation. Inflation will reduce the purchasing power of Pepe coins, causing losses to holders. Market volatility risk: The cryptocurrency market is highly volatile, and the price of PepeCoin is also affected by market sentiment. In a bull market, the price of PepeCoin may rise significantly, but in a bear market, the price of PepeCoin may decline.

2024-03-22 comment 0 884

Li Weike's AR glasses make sports a 'mirror' to the end

Course Introduction：On May 17, the 2023 China International Consumer Electronics Expo kicked off at the Qingdao International Exhibition Center. With the theme of "Integrating Wisdom, Data Gathering the Future", this expo brought together more than 300 companies to showcase the latest technologies and discuss the latest technologies. Industry trends and jointly seek future development opportunities. At the exhibition, Hotspot Technology displayed a series of technological products with the themes of smart home, e-sports and outdoor camping. Among them, Li Weike’s smart AR glasses attracted the attention of many viewers with their technologically full appearance. In terms of appearance, Li Weike's AR glasses use a detachable ultra-light one-piece hyperboloid lens, which has the characteristics of anti-glare, anti-sweat, and anti-fingerprint, and can adapt to various outdoor lighting environments. The frame is made of lightweight TR90 plastic titanium material, relying on ergonomic research on Chinese head circumference big data.

2023-05-27 comment 0 855

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 1203

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 1059

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