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Self-study IT network Linux load balancing video tutorial

Course Intermediate 10976

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 17039

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 10737

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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Is airpods pro lost mode locked?

Course Introduction：airpodspro lost mode is not locked. After airpodspro turns on "lost mode", users can share a message containing their phone number or email address. If someone finds your AirPods, this message will be displayed on the other person's iPhone. In other words, the AirPods Pro lost mode only allows a kind person who has picked up your earphones to contact you and return your earphones. If someone else finds them and does not return them, they can still be used normally.

2023-03-17 comment 0 13736

Why can't I change the name of airpods pro?

Course Introduction：The inability to change the name of airpodspro may be due to user error. The solution is: 1. Open airpods and connect to the mobile phone, find the "Settings" option and click "Bluetooth"; 2. In My Devices, click on the connected airpods device; 3. In the connected airpods, click "Name" and then edit the new airpods name to change it successfully.

2023-05-04 comment 0 7816

What are the functions of AirPodsPro buttons?

Course Introduction：Functions of the AirPods Pro buttons: 1. Press once to play, pause or answer a call; 2. Press twice to jump to the next track; 3. Press three times to jump back to the previous track; 4. Press and hold to activate active noise reduction. Switch between and transparent mode; 5. Say "Hey Siri" to play songs, make calls, obtain offline information, etc. AirPodsPro adopts a new appearance design and chip, and also has active noise reduction function.

2023-06-13 comment 0 4904

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