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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11334

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 17638

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 11350

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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Yii2 framework study notes (4) -- the first Widget

Course Introduction：The biggest function of the front desk is to display pictures. After the user clicks, the pictures can be popped up and displayed enlarged.

2016-12-30 comment 0 1336

jQuery picture special effects plug-in Revealing realizes stretching and magnification_jquery

Course Introduction：This article shares with you the jQuery image display effect. It uses the jQuery Revealing plug-in. Without clicking, the images are neatly arranged in a row. When any image thumbnail is clicked, the image will be enlarged and displayed. When clicked, it will be closed. Click the button and the image returns to thumbnail mode.

2016-05-16 comment 0 1246

jQuery plug-in zoom realizes full-screen enlargement of pictures and pop-up layer special effects_jquery

Course Introduction：jQuery zoom is a jQuery pop-up layer plug-in that can view the big picture of the photo album. Click on the thumbnail of the photo album, and the big picture corresponding to the photo will pop up, with a personalized loading animation, as well as previous and next buttons. Close button. The usage is very simple. Compatible with IE8, 360, FireFox, Chrome, Safari, Opera, Maxthon, Sogou, World Window and other browsers.

2016-05-16 comment 0 1588

How to quickly import PPT images in batches

Course Introduction：(1) Click [Insert]-[Album] in the menu bar, and select the [New Album] command in the pop-up drop-down menu. (2) Open the [Album] dialog box, select the source of the inserted pictures from [File/Disk], press Ctrl+A, select all the pictures you want to insert, click the [Insert] button, return to the [Album] dialog box, Note: After adding pictures in the [Album] dialog box, you can also adjust the picture position, picture display mode, picture layout, photo frame shape, theme and other parameters. You can set them according to your needs. Among them, the [Picture Layout] drop-down list contains four options that are particularly important, reflecting the layout style of the picture after it is imported into PPT, as shown in the figure: Specific meaning: Adapt to slide layout: This is the default layout, the picture will be enlarged in equal proportions, the maximum of account

2024-04-17 comment 0 881

Can I change the photo format on my mobile phone?

Course Introduction：How to set photos to jpg format on mobile phone. In the wps application interface, click Image Compression. 2 Click to select a picture! --2Step 2 Click to select the image--In the image compression interface, click to select the image. 3 Click on the local photo album! --3Step 3 Click on the local photo album--In the expanded interface, click on the local photo album. Open the Swift PDF Editor on your mobile phone. After entering the home page, click Switch Page at the bottom, then slide the screen down to find the major category and click it. Method 1: Download DingTalk PC version. After installation, click on the upper left corner. Select Settings and find the shortcut keys column. You will see that there are screenshot shortcut keys, and you can also customize the shortcut keys. We open the software and click at the bottom of the page. We can see the image conversion function and click on it. point

2024-03-19 comment 0 1267

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