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Self-study IT network Linux load balancing video tutorial

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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

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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.

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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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Pure CSS3 cool 3D starry sky animation special effects

Course Introduction：This is a cool 3D starry sky animation special effect made using pure CSS3. In this special effect, from the perspective of the spacecraft moving forward quickly, all the stars quickly become larger and move backward, and the effect is very realistic.

2017-01-18 comment 0 3183

Multi-view 3D rotatable HTML5 Logo animation sample code details

Course Introduction：This is a 3D animation special effect based on HTML5 and CSS3. Different from the previous 3D special effects, this one is completely implemented using HTML5 features instead of superimposing multiple pictures. Another feature of this 3D animation is that it can be rotated infinitely, so that the HTML5 Logo can be observed from multiple perspectives. Online demo source code download HTML code <div class='link-overlay'> </div> <canvas id='canvas' style='background-c..

2017-03-04 comment 0 1994

Appreciation of HTML5 animation graphics and text on 8 3D visual effects

Course Introduction：More and more 3D applications are used in today's web pages, especially animation special effects based on HTML5 Canvas, giving users a very shocking visual experience. This article collects 8 very cool HTML5 animations with 3D visual effects, all with source codes shared. You can learn the HTML5 animations you are interested in and take a look together. 1. CSS3 ribbon-shaped 3D menu with small icons. This time we are going to share a very special CSS3 menu. The menu has a ribbon-shaped appearance, and each menu item has a beautiful small icon. The mouse slides over it. When you click on a menu item, the menu item will bulge upward, like a ribbon fluttering, forming a very...

2017-03-07 comment 0 2509

Details about 6 cool HTML5 e-book page turning animations

Course Introduction：I believe you must have encountered some e-book websites where we can browse the content of e-books by turning pages like reading a book. The HTML5 application we want to share today is related to e-book page turning. The 6 e-book page turning animations we have selected are very cool, and they all provide source code downloads. Friends in need can download and use them. 1. jQuery book page turning 3D animation special effects The jQuery book page turning 3D animation I want to share today is more powerful, can support the flipping of any number of pages, and also has very beautiful visual effects. The content of the book supports any HTML element, which is quite flexible. Online demonstration ..

2017-03-06 comment 0 5342

Course Introduction：I believe you must have encountered some e-book websites where we can browse the content of e-books by turning pages like reading a book. The HTML5 application we want to share today is related to e-book page turning. The 6 e-book page turning animations we have selected are very cool, and they all provide source code downloads. Friends in need can download and use them. 1. jQuery book page turning 3D animation special effects The jQuery book page turning 3D animation I will share today is more powerful, can support the flipping of any number of pages, and also has very beautiful visual effects. The content of the book supports any HTML element, corresponding...

2017-06-13 comment 0 2340

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