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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11337

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 17638

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 11351

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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Detailed steps for using cutouts in Edraw flowchart creation software

Course Introduction：1. Open the Edraw flowchart creation software and enter the main interface. 2. Click Cutout in the predefined templates and examples. 3. Select the appropriate category according to design needs, such as education. 4. Choose campus life. 5. Select the cutout to be inserted, such as a podium. 6. Drag and drop the podium to the editing page. 7. Click Fill, select the Fill button below, select a suitable color, and you can also fill the inserted cutout with a new color.

2024-04-08 comment 0 435

How to create a brushed metal effect in CorelDRAW with just a few simple steps

Course Introduction：CorelDRAW is a very easy-to-use vector graphics production software, widely used in graphic design, illustration and other fields, and is deeply loved by designers and painters. The software is powerful and can produce a variety of effects to make pictures look more beautiful. Today I will tell you how to create a brushed metal effect, let’s take a look! The specific operation is as follows: In CorelDRAW software, click the [Rectangle Tool] to create a rectangle of appropriate size, and then fill it with color. Next, select [Shading Fill] in [Fill Edit], and select [Gold Foil Shading] from [Sample]. 2. After setting the fill color, right-click the [/] of the palette to cancel the stroke. Next, convert the rectangle to a bitmap. Click on the bitmap and then

2024-02-11 comment 0 463

Heijingzong axis + FSA ball cap: Mechanic K600 three-mode mechanical keyboard starts at half price of 149.5 yuan

Course Introduction：The Mechanic K600 hot-swappable keyboard adopts a 2.4G wireless + Bluetooth + wired three-mode connection solution. It has a built-in 4000mAh lithium battery and is compatible with multiple system devices such as mobile phones/tablets/laptops. The official daily price is 299 yuan. Today, JD.com’s tens of billions of subsidy dropped to 149.5 yuan, supporting the purchase of 2 times the compensation: This tens of billions of subsidies will be shipped by JD.com, and the mechanic JD.com’s self-operated official flagship store will provide one-year after-sales service and support next-day delivery. It adopts a 100-key design and comes standard with a hot-swappable base for all keys. It is compatible with three-pin/five-pin shafts and can be adapted to most mechanical keyboard shafts on the market. Paired with two-color PBT keycaps, it feels delicate and has clear characters, and is wear-resistant and does not fade. The innovative black racing axis is officially claimed to be "quick to use, stable to use, and low noise." The keyboard is equipped with approximately 16.8 million colors

2024-04-09 comment 0 538

Baotu.com official website login entrance

Course Introduction：Baotu official website login entrance: https://ibaotu.com/. Baotu.com is an online material trading website owned by Shanghai Baotu Network Technology Co., Ltd. It was launched in July 2016. The main service is to provide materials in the form of pictures, videos, audios, psd source files, etc. The content section of Baotu.com has ten categories: advertising design, photography, fonts, UI design, e-commerce Taobao, multimedia, office documents, decoration and models, illustrations and graphics, and 3D materials. Baotu.com official website login portal Baotu.com official website login portal link: https://ibaotu.com/Main categories of advertising design: posters, exhibition boards, leaflets, albums, business cards, certificates, resumes, etc.; photography: natural Scenery, business office, catering beauty

2024-06-11 comment 0 773

Heijue AK980 three-mode keyboard is on sale: 2U0 key configuration, 98 keys, TFT color screen, starting from 199 yuan

Course Introduction：The Heijue AK980 keyboard is on sale today. This keyboard adopts a 2U0 key type 98 configuration design, equipped with a TFT color screen, and an optional FR4 positioning plate. It starts from 199 yuan. According to reports, the entire series of Heijue AK980 keyboards supports wireless 2.4G + Bluetooth + wired three-mode connection, and is compatible with the entire system. It is available in 2 colors: Fog Sichuan Sea/Star Night Gray, and uses original three-piece PBT keycaps with illustrations printed on the bottom. . This keyboard offers a total of 5 types of switches: Hyacinth, Maillard, Gift Switch V2, Qingyun Switch, and TTC Flame Red Switch V2. It supports full-key hot-swap function and is compatible with three-legged/five-legged switches. The Heijue AK980 keyboard adopts Gasket gasket structure and double-slot design. PC/FR4 immersed gold positioning plate is optional, and it is equipped with 1.2mm single-key slot P

2024-08-20 comment 0 554

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