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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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Sharing the source code of visual difference effects based on JQuery and CSS3 to imitate Apple TV poster background_jquery

Course Introduction：This is a very cool jQuery and CSS3 imitating Apple TV poster background visual difference effect. This visual difference effect uses the mouse to move up, down, left and right on the screen, and various elements in the poster move at different speeds, forming a visual difference effect, and also has some streamer special effects.

2016-05-16 comment 0 1497

jQuery code realizes automatic + manual fade-in and fade-out switching effect of picture wall_jquery

Course Introduction：You can often see the effect of automatically fading in and out of background pictures on web pages. It is very beautiful and very practical. Today I will share with you the automatic + manual fade in and out switching effect of the picture wall based on jquery code. If you are interested, Let’s study together with friends

2016-05-16 comment 0 1496

Best practices for implementing image filter effects using PHP and GD libraries

Course Introduction：Introduction to the best practices of using PHP and GD libraries to achieve image filter effects: In web development, it is often necessary to perform some special effects processing on images, among which image filter effects are a very common one. You can use PHP and GD libraries to achieve a variety of image filter effects, such as black and white, blur, mosaic, etc. This article will introduce the best practices on how to use PHP and GD libraries to achieve image filter effects, and attach code examples. Background knowledge: PHP: a general-purpose scripting language, especially useful for development

2023-07-13 comment 0 1485

jquery implements effects such as left and right scrolling, gradient and graphic background scrolling of animated menus_jquery

Course Introduction：This article mainly introduces jquery's implementation of left and right scrolling, gradient and graphic background scrolling effects of animated menus. It analyzes several commonly used background dynamic transformation effects in jquery with examples. It involves jquery dynamic operation page animation effect implementation techniques, which has certain reference value. , friends in need can refer to it

2016-05-16 comment 0 1352

HTML, CSS and jQuery: Techniques for achieving image folding and expanding effects

Course Introduction：HTML, CSS and jQuery: An introduction to techniques for implementing image folding and expanding special effects. In web design and development, we often need to implement some dynamic special effects to increase the attractiveness and interactivity of the page. Among them, the image folding and unfolding effect is a common but interesting technique. Through this special effect, we can make the image fold or expand under the user's operation to show more content or details. This article will introduce how to use HTML, CSS and jQuery to achieve this effect, with specific code examples. realize thoughts

2023-10-24 comment 0 818

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