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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11245

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 17581

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 11291

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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How to delete a page in adobe reader How to delete a page in adobe reader

Course Introduction：First, open the option of an Adobe Acrobat icon that is already installed on your computer. When I enter the pdf file opened by Adobe Acrobat, it shows two pages. Click the Document menu in the Adobe Acrobat menu. After clicking the menu of the document, the next-level menu pops up and selects the option to delete the page. A delete page window will pop up, click the OK button to delete. You can see that the number of pages in the current page has changed to 1 page.

2024-06-04 comment 0 770

How to convert eml file to pdf format

Course Introduction：eml file is an email file format commonly used to store and transmit email messages. Sometimes, we may need to convert eml files to PDF format for easy reading, printing or sharing. This article will introduce several methods to convert eml files to PDF format. Method 1: Use professional file conversion tools. There are many professional file conversion tools on the market that can convert eml files into PDF format. Here are some commonly used tools: AdobeAcrobat: AdobeAcrobat is

2024-02-19 comment 0 793

How to print PPT slides to completely fill the entire A4 paper_How to print PPT slides to completely fill the entire A4 paper

Course Introduction：1. Download and install Adobe Acrobat. This step is for easy reading during later printing and to know the order of each PPT. 3. [File]-[Save and Send]-[creatadobepdf] to create a PDF document. 4. After finding the pdf file, right-click and select [Open with]-[Adobe Acrobat]. 5. Select [Print], set the parameters as shown in the figure, and select Print.

2024-04-17 comment 0 531

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