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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11222

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 17566

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 11276

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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PPT operation process for designing basketball rotation animation

Course Introduction：1. Double-click to open PPT. Type the text [Basketball Keeps Rotating] in the title bar, select the font as [Founder Kang Simplified], the font size as [60], and the font color as [Dark Red]. The subtitle bar will be removed. 3. Execute [Insert/Picture] to insert the basketball material prepared in advance. Select the image, use the cropping tool to process the excess part of the image, and execute the setting of transparent color under [Recolor] to remove the background of the image. 4. Execute [Animation/Custom Animation] to add effects to the picture: select [Gyro] under [Emphasis]. Then set [Start] to [Before], [Quantity] to [360° Clockwise], and [Speed] to [Fast]. 5. Double-click Add Effect under the custom animation panel on the right, and a new interface will pop up (

2024-03-26 comment 0 625

How to remove background color in CorelDRAW, elimination method tutorial

Course Introduction：CorelDRAW is a professional graphics production and design software that is loved by many painters and designers. During the creation process, sometimes it is necessary to remove the background color of the image. Many functions in the software cannot directly operate on vector images, so we need to convert the image into a bitmap. Many newcomers don’t know what to do. Let’s take a look together. The specific operations are as follows: 1. Open the software. Import the material software to be processed. 2. Click [Bitmap] above, select [Convert to Bitmap], select in [Color Mode], and select [Black and White] to remove the original background color. In the same way, users can freely proceed according to their own needs. Color processing, the above is the tutorial on how to remove background color in CorelDRAW. I hope it can help.

2024-02-10 comment 0 1333

How to use Adobe Illustrator CS5 How to change the background color of pictures in Adobe Illustrator CS5

Course Introduction：Adobe Illustrator has established itself as the benchmark in the publishing, multimedia, and web image design industries as the leader in vector graphics design software. It is widely used in many fields such as print media, professional illustration and web design, showing its excellent adaptability and flexibility. As a comprehensive and highly professional design tool, Adobe Illustrator provides creative people with a broad creative world to help them realize and display their eye-catching visual art works. How to change the background color of pictures in Adobe Illustrator CS5? 1. Adjust color balance: First, click the [Edit] menu, select [Edit Color], and then click [Adjust Color Balance]

2024-07-31 comment 0 992

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 1137

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 0 993

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