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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11309

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 17619

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 11324

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 uses a single-page scrolling text box to demonstrate the operation method of long text

Course Introduction：The method of calling up the scrolling text box is as shown in the figure. Microsoft has disabled it by default. Switch to the [Development Tools] tab and select the second one in the [Control Group] - Text Box. Draw a text box on the slide. Right mouse button - property sheet, change ScrollBars to 2-fmScrollBarsVertical, which is the third vertical scroll bar. Tip: Each item in the ScrollBars scroll bar needs to be explained. 0-fmScrollBarsNone no scroll bar 1-fmScrollBarsHorizontal horizontal scroll bar 2-fmScrollBarsVertical vertical scroll bar 3-fmScrollBarsboth horizontal and vertical

2024-04-17 comment 0 1073

How to compare views in Adobe Premiere Pro CS6 How to compare views in Adobe Premiere Pro CS6

Course Introduction：Step 1: After opening Adobe Premiere Pro CS6, import a local video file (as shown in the picture). Step 2: Drag the video to the timeline on the right (as shown in the picture). Step 3: Next, we move the perspective to the video panel on the upper right. Find where the mouse is pointed (view comparison) (as shown in the picture). Step 4: After switching to view comparison, a dual screen will appear on the video panel. The timeline can operate on one video, and the other is the comparison video (as shown in the figure). Step 5: Click the view mode switch in the middle, and the dual views on the panel will switch to vertical split and horizontal split respectively (as shown in the picture).

2024-06-08 comment 0 418

How to adjust ppt reference line

Course Introduction：The formatting of ppt is also very important, just like we use word to format it, it is all to make it more pleasing to the eye when viewing. But in word, most of them are to set the layout of fonts, lines and paragraphs, but the layout in ppt is different. It requires the use of reference lines to mainly layout text and pictures. So how to adjust the ppt reference lines? The editor below will explain the detailed steps to you. 1. Open a ppt that requires reference lines. 2. Switch to the "View" menu and check "Reference Lines", and two horizontal and vertical reference lines will appear. 3. Press and hold the left mouse button on the reference line to change the position of the reference line at will. 4. Right-click on the reference line and select "Add Vertical Guide" and "Add Horizontal Guide".

2024-03-19 comment 0 1368

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 1192

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 1046

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