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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11279

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 17603

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 11314

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 improve the clarity of pictures in QQ browser

Course Introduction：How to improve the high definition of pictures in QQ browser? In order to help users save more traffic, the picture quality of mobile QQ browser is the default. However, some users think that the pictures in this mode are not very high-definition. If you want to browse high-quality pictures, you need to modify the mode. The editor below brings you the steps to enable high-quality pictures in the QQ browser. Users who want to view higher-definition pictures can refer to the following steps to set up. Steps to open high-quality pictures in QQ browser: 1. First open the QQ browser on your mobile phone and click on the "My" item in the menu bar at the bottom of the browser, as shown in the figure. 2. At this time, you will enter the personal center page of QQ Security Browser for mobile phones. Click the gear-shaped "Settings" icon in the upper right corner of the page, as shown in the figure. 3

2024-01-08 comment 0 1206

How to intercept and view text messages on Xiaomi mobile phone_Introduction to the location of intercepting and viewing text messages on Xiaomi mobile phone

Course Introduction：1. Open the [Mobile Manager] APP on your mobile phone. 2. Select [Mobile Manager] as shown in the picture. 3. Find [harassment interception] in smart communication. 4. Then you can see the intercepted text messages.

2024-04-25 comment 0 595

How to save pictures in TikTok private messages to mobile phone? How to make a private message card?

Course Introduction：On Douyin, a social platform, interactions between users are becoming increasingly frequent, and the private messaging function has become an important way for users to communicate. Sometimes, users will receive pictures sent by friends, and saving these pictures locally on the mobile phone can be convenient for users to view and use at any time. So, how do you save the pictures in TikTok private messages to your phone? How to make Douyin private message card? This article will answer these two questions for you in detail. 1. How to save pictures in TikTok private messages to your phone? 1. Open Douyin APP, enter the private message interface, and find the picture you want to save. 2. Click on the picture to enter the picture viewing page. 3. On the image viewing page, click the "Save" button in the lower right corner. 4. The picture will be automatically saved to the photo album of your phone, and you can view and use it at any time. 2. Douyin private message card

2024-05-08 comment 0 850

How to adjust the picture quality to high definition on Ele.me without WiFi? An introduction to the steps to adjust the picture quality to high definition on Ele.me without WiFi.

Course Introduction：Ele.me APP is an indispensable mobile app for ordering food, and it is also a commonly used food recommendation tool in our daily lives. Many friends want to know how to adjust the picture quality to high definition in Ele.me without WiFi. In order to save time, let me give you a brief introduction below! How to adjust the picture quality to high definition on Ele.me without WiFi 1. First, click [General Settings] in the [Settings] interface of Ele.me. 2. Then enter the page and click [Image quality under non-wifi]. 3. Finally, select the picture quality of [HD] in the [Picture Quality under Non-wifi] window.

2024-07-11 comment 0 496

How can I see the pictures in the comments section of TikTok clearly? How to enlarge the picture in the comment area?

Course Introduction：With the popularity of Douyin, users sharing pictures in the comment area has become a unique landscape. Due to image size restrictions, many users find it difficult to see the images in the comment area. To see clearly requires some skills. 1. How can I see the pictures in the comment section of Douyin clearly? 1. Adjust the screen brightness: The display effect of the pictures in the comment area of Douyin app will be affected by the screen brightness. Too high or too low brightness will cause the picture to be unclear. Therefore, users need to adjust the brightness of the mobile phone screen to achieve the best visual effect. 2. Use the zoom function: The pictures in the Douyin comment area are smaller by default. Users can use the zoom function to view the details of the picture by long pressing the picture. Users can also save pictures to their phone and then use the picture viewer in the photo album to enlarge them.

2024-06-15 comment 0 415

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