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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11302

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 17615

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 11321

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 run c language in sublime

Course Introduction：Sublime Text can run C language code by installing the C++ Builder plug-in: install the compilation plug-in; configure compilation settings, including compilation commands and settings; select the build system as "Run"; run the code. After successful compilation, the executable file will be generated in the source file directory.

2024-04-03 comment 0 1393

Is jquery native?

Course Introduction：jquery is not native, but encapsulates many methods on the basis of native js to form a js library; that is to say, jquery encapsulates commonly used functional codes of js, provides a simple JavaScript design mode, and optimizes HTML document operations. , event handling, animation design and Ajax interaction.

2021-11-17 comment 0 1847

what is apache cordova

Course Introduction：Cordova is an open source project contributed by PhoneGap to Apache. It is the core code extracted from PhoneGap and is the core engine that drives PhoneGap. Cordova provides a set of device-related APIs through which mobile applications can access native device functions using JS.

2019-06-11 comment 0 3338

How to connect wireless network card to desktop computer

Course Introduction：How to connect a wireless network card to a desktop computer The method to connect a wireless network card to a desktop computer is as follows: Find the USB socket on the computer and insert the wireless network card into the USB socket. At that time, the computer will automatically recognize the driver of the wireless network card. After inserting the USB, the run dialog box will automatically pop up, click on the dialog box to run. Just insert the wireless network card first, update the driver software, and then connect the SSID in the Network and Sharing Center. First, insert the USB wireless network card into the computer USB interface. The system will detect the new hardware, and then select the wireless network card in the device manager. , right-click, update driver software, and select driver installation. Find the computer USB interface and insert the wireless network card into the interface. Click Run and it will automatically enter the installation interface. If it does not automatically pop up,

2024-05-04 comment 0 771

Fix: Device driver software did not install successfully

Course Introduction：The latest versions of Windows operating systems have a plug-and-play feature that allows your computer to download drivers for newly plugged-in devices. However, device driver was not successfully installed error when there is a problem in downloading the universal driver on PC. Therefore, we will explore some common reasons why device driver software fails to install and provide solutions to fix the problem. Alternatively, you can read about how to update driver packages on Windows 11 PC. Why is the device driver software installation unsuccessful? There are several factors that can cause device driver software to not install successfully. Some common reasons are: Device not recognized – Windows operating system automatically downloads the device’s universal driver software when plugged in. therefore,

2023-05-03 comment 0 3902

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