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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11331

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 17634

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 11347

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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PHP method to realize three-level linkage of year, month and day

Course Introduction：This article mainly introduces the relevant information about the three-level linkage example code of PHP year, month and day. Friends who need it can refer to it.

2018-05-22 comment 0 1410

Simple implementation of three-level linkage using JavaScript

Course Introduction：In actual JavaScript project development, we often need three-level linkage, such as the selection of provinces and municipalities, the selection of three-level product classifications, etc. Today we will explain how JavaScript implements three-level linkage, and we will share the JavaScript source code with you! If you are not familiar with JavaScript to implement three-level linkage, you can take a look with us!

2018-03-10 comment 0 3884

The European Central Bank announced that it will enter the 'digital euro' preparation phase next month and will formulate relevant regulations and select development suppliers.

Course Introduction：According to news from this site on October 19, the Governing Council of European Central Bank (ECB), which is responsible for formulating the Euro system, said yesterday that it has ended the two-year digital euro investigation phase and will enter the same two-year digital euro on November 1. "Preparatory phase", this phase is expected to formulate laws and regulations related to the digital euro, and select specific platform developers and infrastructure suppliers. The European Central Bank announced the launch of the Digital Euro Project (Digital Euro Project) in July 2021. The first phase is a two-year investigation to explore the design and significance of the digital euro. The investigation report was released this week. The European Central Bank will distribute the digital euro

2023-10-19 comment 0 1288

An example tutorial on how to implement three-level linkage between provinces, cities and counties using jQuery

Course Introduction：Simple three-level linkage between provinces and municipalities, a case suitable for beginners to start learning The directory structure is as follows: Three-level linkage.html is at the same level as the JS folder The renderings are as follows: HTML code: 1 <style type="text/css"> 2 *{margin:0;padding:0;} 3.selectAll 4 { width:400px; 5 mar

2017-06-26 comment 0 1354

OPPO Chen Mingyong: 2024 is the first year of AI mobile phones, and the mobile phone industry has entered the third stage

Course Introduction：According to news on February 18, today is the first day of work in the Year of the Dragon. OPPO Chen Mingyong released an internal letter with the theme of "Opening a new era of AI mobile phones." Chen Mingyong said that 2024 is the first year of AI mobile phones. In the next five years, the impact of AI on the mobile phone industry will be comparable to the year when smartphones replaced feature phones. From the perspective of industry development stage, AI mobile phones will also become the third stage of the mobile phone industry after feature phones and smartphones. He said that through AI, we can redo the mobile phone experience and help users achieve higher value. For example, during the Spring Festival, the FindX7 series took the lead in launching a series of AI functions, such as AI elimination, new Xiaobu assistant, AI call summary, Xiaobu photo studio, Xiaobu AI greeting cards, etc. Among them, A

2024-02-18 comment 0 1044

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