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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11328

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 17632

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 11339

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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Which key on the computer keyboard can directly shut down the computer?

Course Introduction：The power button of the computer keyboard can be turned off. The specific steps are as follows: 1. Locate the power button in the upper right corner or the upper right corner area of the keyboard; 2. Press and hold the power button for about 2-4 seconds; 3. Release the power button.

2024-03-31 comment 0 934

Apple iPhone 16 Pro CAD renderings exposed: new photo button, 6.3-inch screen

Course Introduction：IT House reported on March 9 that after sharing the CAD rendering of iPhone SE4, foreign technology media 91Mobile once again shared the CAD rendering of iPhone16Pro, showing new buttons, larger size and other information. Material iPhone15Pro and iPhone15ProMax are made of titanium for the first time. The iPhone 16 Pro will also continue to be made of titanium, but Apple will further narrow the borders and R corners to increase the screen-to-body ratio. New camera button According to the CAD rendering, a new camera button is added below the power button. The button has capacitive touch functionality and is expected to enable functions such as adjusting focus and zoom levels, in addition to triggering photo and video capture. fenye In addition, Apple may

2024-08-21 comment 0 456

Power button not working on iPhone: Fix

Course Introduction：Is the power button not working properly on your iPhone? The power button's non-functionality can be annoying. While you probably don't shut down or restart your iPhone very often, the button's main purpose is to lock and wake the device. Don't worry. Even if the button doesn't work, you can develop a very good alternative solution to solve this power button crisis. Fix – 1 Try using the power button Try pressing the power button a few times is a simple fix but it can fix the power button. Just pinch the power button a few times in succession. The screen lights up every time you tap the power button. If the screen doesn't turn on even once when you press the power button, the problem may be with the power button itself. Fix 2 – Remove power button dust or other small particles

2024-06-13 comment 0 911

Apple iPhone 16 Pro CAD renderings exposed: new photo button, 6.3-inch screen

Course Introduction：Thanks to netizen Wu Yanzu from South China for submitting the clue! According to news on March 9, after sharing the CAD rendering of iPhone SE4, foreign technology media 91Mobile once again shared the CAD rendering of iPhone16Pro, showing new buttons, larger size and other information. Material iPhone15Pro and iPhone15ProMax use titanium material for the first time, and iPhone16Pro will continue to use it, but Apple will further narrow the borders and R-angle to increase the screen-to-body ratio. New camera button According to the CAD rendering, a new camera button is added below the power button. The button has capacitive touch functionality and is expected to enable adjusting focus and zoom levels in addition to triggering photo and video capture

2024-03-09 comment 0 488

Course Introduction：Shopping mall websites often use some button materials. Commonly used button materials include buy now, add to shopping cart, buy now, click to follow, receive coupons immediately, etc. The following php Chinese website selects 10 buttons that must be used on shopping mall websites. Material png pictures, including psd files, welcome to download!

2017-06-03 comment 0 4398

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