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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11274

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 17599

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 11309

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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Alibaba's tutorial guide for sending text messages

Course Introduction：Alibaba sends text messages: Preparation work: (1) Application management -> Application list -> Create an application to obtain the APP Key and APP Secret (2) Obtain the SMS signature and SMS template preparation work. After the SMS template preparation work is completed, the SMS template preparation work is completed. Finally, implement it in the program: import com.taobao.api.DefaultTaobaoClient;import com.taobao.api.TaobaoClient;i

2017-07-22 comment 0 1824

How to make a wealth accounting expense template

Course Introduction：Accounting has always been an important means for us to manage finances and control consumption. With its convenient operation and rich functions, Wacai Accounting APP has become the first choice tool for many users to manage their personal finances. Among them, the setting of expenditure templates can help us quickly record daily expenditures and improve accounting efficiency. If users still don’t know how to create a template for digging money and accounting, please follow the graphic guide below. How to set up the Wacai Accounting expenditure template. On the homepage of the Wacai Accounting app, click the [Love] icon at the top. 2. Enter the shorthand template page and click [Add Template] at the bottom. 3. The small window is displayed and click [Expenditure Template]. 4. On the expenditure template page, enter the name, select the account, merchant, etc., and click [√] in the upper right corner, that is

2024-07-02 comment 0 629

What is the difference between react and vuejs

Course Introduction：Differences: 1. Vue has two-way binding, but react does not; 2. React uses JSX, and Vue uses HTML templates to create views; 3. React uses Flux to manage state, and Vue uses Vuex; 4. React uses Create React App scaffolding, and Vue uses vue-cli.

2021-09-22 comment 0 3438

How to make a mind map in Evernote

Course Introduction：Evernote is a very efficient knowledge management tool. Many users are curious about how to make mind maps in Evernote when using it. Now let’s take a look at the Evernote mind mapping tutorial that the editor brought to you. How to make a mind map in Evernote Answer: APP-More New-Mind Map-Star Icon-Mind Map Model. Specific steps: First, open the Evernote software, enter the homepage and click [More New] on the left. 2. Then after clicking, in the pop-up dialog box, there will be functions such as creating new templates, mind maps, outline notes, etc. Click [Mind Map] here; 3. Then go to the page of the newly created mind map. There will be some functions available on the left, click on the [Star Icon]; 4. Finally

2024-02-05 comment 0 1496

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 1167

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