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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11303

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 17616

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 11321

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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What software does the Empire CMS website template have?

Course Introduction：Empire cms website building software templates provide a wealth of templates to choose from, including free and paid templates. Free templates cover a variety of industries and purposes, including corporate websites, e-commerce websites, portals, forum websites, and blog websites. Paid templates offer more advanced features and designs, such as responsiveness, multi-language, and advanced e-commerce features. When choosing an empire cms template, you should consider factors such as website type, design, features, and cost.

2024-04-17 comment 0 1014

Cooler Master Sneaker

Course Introduction：This website reported on February 14th that Cooler Master had previously displayed a SneakerX shoe-shaped computer host, which imitated the appearance of sports shoes. The national bank price of the machine has now been released. This is a red and white sneaker PC host equipped with a mini-ITX motherboard, 850WSFX gold medal full-module power supply, 360 integrated water cooling, and a size of 650x306x348mm. This site found that the Chinese version of the machine is available in AMD and Intel versions: the AMD version is equipped with Ryzen 97950X3D processor + RX7900XTX graphics card, equipped with 64GBDDR56000MHz memory and 4TB PCIe4.0SSD, as well as Wi-Fi6E + Bluetooth 5.2 + wired network port . Intel

2024-02-15 comment 0 425

How to Send Templated Emails with JavaScript While Overcoming Browser URL Character Limitations?

Course Introduction：Email Sending with Javascript: Client-Side ApproachThis article addresses the issue of sending templated emails through a website, but utilizing the user's local mail client for the actual transmission. The objective is to avoid server-side email sen

2024-10-20 comment 0 1023

Blue OLED phosphorescent materials have poor color accuracy, and related terminal display products are expected to be shipped as early as 2026

Course Introduction：According to a report by Korean media TheElec, OLED materials giant UDC’s blue OLED phosphorescent materials are facing problems with poor color accuracy, which may affect the further delay in the launch of terminal display products. According to previous reports on this site, in addition to UDC, Samsung Display itself is also developing blue OLED phosphorescent materials. In OLED panels, phosphorescent materials can theoretically achieve nearly 100% exciton energy conversion rate, while fluorescent materials can only achieve 25%. The use of phosphorescent materials can greatly improve OLED energy efficiency, thereby reducing power consumption, extending battery life, and increasing brightness. ▲Picture source UDC official website Current OLED products already use phosphorescence in the other two primary colors-red and green. But in the blue part, the phosphorescent material exists

2024-04-15 comment 0 548

New upgrade: vivo Pad Air is equipped with high-performance Snapdragon 870 and has strong battery life!

Course Introduction：According to news on August 18, vivo officially released a new series of tablet products, vivoPad Air, today, targeting young people. This tablet features three stylish colors: Free Blue, Brave Pink and Easy Silver. It is especially favored by students. It has a built-in atomic note function and can be matched with vivoPencil2 to meet the needs of learning and creation. vivoPadAir has made improvements in product specifications. It is equipped with a 2.8K resolution 144Hz super-sensing primary color screen, supports an e-sports-level ultra-high refresh rate of up to 144Hz, displays rich 1.07 billion colors and a maximum peak brightness of 500 nits. In addition, the tablet has a screen ratio of 3:2 and fully supports eye protection mode to provide users with comfortable vision.

2023-08-21 comment 0 1304

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