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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11322

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 17629

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 11334

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 use CSS3 to create text animation under light illumination

Course Introduction：Sometimes we need to do such a special effect, illuminate it with light, and then display text animation, so today we will bring you the source code for displaying text animation with light illumination.

2017-11-25 comment 0 2821

How to customize text color using CSS3's cool glowing text

Course Introduction：This is a text glowing effect based on pure CSS3. When we slide the mouse over the text, the text will simulate a glowing animation, showing a very cool glowing picture. In addition, due to the reference of special fonts, the entire text effect looks like a 3D three-dimensional effect. If your network cannot load these fonts, it may be because the foreign website is blocked, just like Google's font library URL is blocked. That way. Online demo source code download HTML code <div id='container'> <p><a href='#'> ..

2017-03-19 comment 0 2064

What uses optical principles to store data?

Course Introduction：Optical discs use optical principles to store data. Optical disc is a device that uses laser principles to read and write. It is a rapidly developing auxiliary memory that can store various multimedia digital information such as text, sound, graphics, images, and animations.

2021-06-11 comment 0 3815

What is a memory that uses optical principles to store data?

Course Introduction：A memory that uses optical principles to store data is an "optical disk." Optical disc is a device that uses laser principles to read and write. It is a rapidly developing auxiliary memory that can store various multimedia digital information such as text, sound, graphics, images, and animations. Optical discs use focused hydrogen ion laser beams to process recording media to store and reproduce information, also known as laser discs.

2021-06-11 comment 0 9317

What principle does an optical disc use to read and write information?

Course Introduction：An optical disc is a memory that uses the "laser" principle to read and write information. Optical disc is a medium that uses laser scanning to record and read out information; it is a device that uses laser principles to read and write. It is a rapidly developing auxiliary memory that can store various texts, sounds, graphics, and images. and animation and other multimedia digital information.

2022-08-22 comment 0 12956

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