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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11451

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 17736

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 11438

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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What can java do?

Course Introduction：Java is widely used in enterprise-level web application development and mobile application development. It can be used for: Android application development, server program development, website development, software tool development, trading system development, J2ME system development, embedded field, big data technology, etc.

2019-11-16 comment 0 4575

Tutorial on how to download Dogecoin wallet APP in China

Course Introduction：It is recommended to use TrustWallet or Exodus wallet APP to download Dogecoin, visit the official website, select the mobile application and download and install it.

2024-08-29 comment 0 394

How to register and download Orient Walt payment platform

Course Introduction：Registration and download guide for OrientWalt payment platform: 1. Register on the official website, provide personal information, read and agree to the terms. 2. Download the mobile application compatible with your device from the official website. 3. Log in to OrientWalt using your account.

2024-08-30 comment 0 438

The difference between jdk and java

Course Introduction：The difference between "jdk" and "java" is: first of all, "jdk" is a free software development tool kit released for "java" developers, mainly used for compiling and debugging programs, while "java" is a widely used computer programming Language, widely used in enterprise-level "Web" application development and mobile application development.

2019-11-23 comment 0 10903

javascript:void(oWhat to do

Course Introduction：JavaScript is an interpreted scripting language that is prototype-based and object-oriented. It is widely used in dynamic websites, mobile application development, etc. The advantages of JavaScript include being easy to learn, cross-platform, and dynamic, but it also has limitations such as security issues, performance bottlenecks, and difficulty in maintenance.

2024-05-06 comment 0 978

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