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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11357

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 17659

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 11371

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 adjust DingTalk video mirror_How to adjust DingTalk video mirror

Course Introduction：1. First open DingTalk and select [Quick Meeting]. 2. Then click [Settings]. 3. Then open [Video Mirror Effect]. 4. Finally, click the button on the right side of the mirror effect as shown in the picture to set it.

2024-04-29 comment 0 876

Is the method to adjust the taskbar width of Win11 23h2 solved?

Course Introduction：When we use win1123h2 system, we sometimes encounter the situation that the taskbar is too wide, so how to set this situation? Users can directly enter the Advanced folder under registry editing, then right-click on a blank space and create a new DWORD value of TaskbarSi to set it. Let this site carefully introduce to users how to adjust the Win1123h2 taskbar that is too wide. How to adjust the Win1123h2 taskbar that is too wide 1. First, right-click the Start menu and select Run. 3. Enter the registry and enter in the address bar: Computer HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsC

2024-01-29 comment 0 789

How to adjust the resolution of Win11 English version_How to adjust the resolution of Win11 English version

Course Introduction：1. Right-click the [Start] button, select the [Settings] option, enter the Windows settings interface, and click [System]. 2. After entering the system setting interface, click [Display] on the right. 3. Then we can see the resolution under the advanced scaling settings on the right. 4. If you don’t know which resolution is suitable for your computer, you can click one by one to try. If it is suitable, click [Keep Changes]. If it is not suitable, click [Restore].

2024-05-08 comment 0 606

How to adjust the smart sound effects of National Karaoke How to adjust the smart sound effects of National Karaoke

Course Introduction：How to adjust the smart sound effects of National Karaoke? Intelligent sound effects can be set on National Karaoke. After turning on this sound effect, the software will adjust the best sound effects according to the song conditions. Many friends still don’t know how to adjust the smart sound effects of National Karaoke. Here we have compiled the adjustment and setting methods for the smart sound effects of National Karaoke. Let’s take a look. How to adjust the smart sound effects of National Karaoke 1. Find My in the lower right corner on the National Karaoke homepage, select and click Settings in the upper left corner. 2. Select General Settings in the Settings Center and enter the sound effect settings. 3. Find [Smart Sound Effects] below and click Use below. How to retrieve deleted works from National Karaoke? Deleted works from Universal Karaoke cannot be restored for more than 30 days. They can be restored on the recently deleted page within 30 days. Details

2024-07-02 comment 0 608

The solution to the sudden problem of a line with extremely large text spacing in Word

Course Introduction：Select the modified text and click [Paragraph]. We see that the [conventional alignment method] is - [align both ends]. If the entire paragraph is pure text, modify [Alignment] - [Left Alignment], click [OK] and it will be OK. Just adjust the position according to the situation. Because the editor found that the above method did not work for the problem I encountered. How to adjust, how to delete, I want to adjust the following to the back of the text. It just doesn't work. It turns out that the problem lies here, because the line below the problem line is in English. Because under normal circumstances, English does not wrap lines, and the system is not so intelligent yet. English is uninterrupted. If it wraps lines automatically, the meaning may change. Select the text you want to modify, right-click, [Paragraph]. In [Chinese layout], [line break] allows Spanish characters to be placed in the middle of words

2024-04-26 comment 0 1289

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