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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11320

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 17629

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 11331

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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VGN A75 gaming magnetic keyboard is on sale for the first time today: single-mode wired connection, 0.1~4.0mm adjustable travel, starting from 189 yuan

Course Introduction：According to news from this site on June 18, the VGNA75 gaming magnetic keyboard is on sale today. The keyboard adopts GAS structure, supports web drive/independent drive, and is available in five colors. The initial price starts at 189 yuan. According to reports, the VGNA75 gaming magnetic axis keyboard adopts a 75 configuration and is available in five colors: classic white, classic black, rose red gradient, blue gradient and gray gradient, and supports single-mode wired connections. The selling price information is as follows: Classic White 189 Yuan Classic Black 189 Yuan Rose Red Gradient Side Engraving 249 Yuan Blue Gradient Side Engraving 249 Yuan Gray Gradient Side Engraving 249 Yuan This keyboard is equipped with a metal knob that supports volume adjustment and is suitable for office and gaming scenarios. Use; adopts GAS structure, equipped with silencer filling, PC/steel positioning plate, which can reduce resonance and take into account the precision of magnetic axis buttons.

2024-06-19 comment 0 1322

Dimensity 9300+11500mAh battery: vivo Pad 3 Pro tablet 256G version 2699 yuan 10 billion subsidy

Course Introduction：The vivoPad3Pro tablet will go on sale on April 3, with the 8+256G version priced at 3,299 yuan. During JD.com’s 618 promotion, the subsidy price of tens of billions is 2,699 yuan: the order supports 6 interest-free periods. In addition, you can receive JD.com’s 618 red envelope without threshold today, and you can use it immediately: click here to draw today’s red envelope. In terms of appearance, vivoPad3Pro uses an integrated metal body that is only 6.64mm thick. The front is a symmetrical full screen that is currently the mainstream of similar models, and it also has a good screen-to-body ratio. The circular rear multi-camera module is still placed in the upper right corner of the back of the fuselage. The brand logo is located in the middle of the central axis of the back. In terms of color matching, it provides three choices of spring tide blue, cold star gray, and thin cloud purple. In terms of hardware configuration, vivoPad3Pr

2024-06-19 comment 0 695

Introduction to the method of drawing graphic design drawings with Edraw flow chart making software

Course Introduction：Open the Edraw flow chart making software, select New [Floor Layout], select the corresponding template or example on the right side of the software to start drawing to create the basic exterior wall structure. Drag the green control point, double-click the dimension text, enter the length and width, and the shape will change accordingly. From the [Walls, Doors, Windows and Structures] symbol library, drag the wall shape to the drawing page. Drag the green control point to change the wall size or change the wall length value. Drag one wall to another. When the end point turns red, release the mouse and the two walls will snap together. To set the door opening direction, you can right-click the door shape and select the vertical flip or horizontal flip button in the right-click menu to set it. Drag the yellow control point to change the door's facing angle and direction. You can also add some green plants to beautify the

2024-06-01 comment 0 354

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 1199

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 1053

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