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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11277

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 17603

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 11312

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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ECharts dashboard: how to display data indicators

Course Introduction：ECharts Dashboard: How to display data indicators, specific code examples are required Introduction: In the modern information age, we are exposed to all kinds of data everywhere. Understanding and analyzing data is critical to decision-making and business development. As a data visualization tool, the dashboard can visually display various data indicators and help us better grasp the data. ECharts is a powerful data visualization library, and its dashboard component can easily realize the visual display of data. This article will introduce how to use ECharts dashboard display

2023-12-17 comment 0 804

Create visual charts and reports using PHP and ECharts

Course Introduction：With the advent of the big data era, data visualization has become an important tool for corporate decision-making. Various strange data visualization tools emerge in endlessly, among which ECharts has received widespread attention and application due to its powerful functions and good user experience. As a mainstream server-side language, PHP also provides rich data processing and chart display functions. This article will introduce how to use PHP and ECharts to create visual charts and reports. Introduction to ECharts ECharts is an open source visual chart library developed by

2023-05-10 comment 0 1549

What is ECharts

Course Introduction：ECharts is an open source visualization library based on JavaScript, which can help developers easily achieve various complex data visualization effects. It provides a wealth of chart types and interactive functions. It also has strong customization, mobile adaptability, community support, etc. Advantages, whether in business applications, data analysis or data display, ECharts is a highly recommended tool.

2023-08-04 comment 0 2432

ECharts and golang practical guide: techniques for making diverse statistical charts

Course Introduction：ECharts and golang practical guide: Tips for making diverse statistical charts Introduction: With the development of the Internet and the explosive growth of data, the visualization of statistical data has become an indispensable part of all walks of life. Data visualization can help people understand and analyze data more intuitively, thereby improving the accuracy and efficiency of decision-making. Among data visualization tools, ECharts is a powerful and easy-to-use open source statistical chart library, while golang is an efficient, concise and powerful programming language. This article will

2023-12-17 comment 0 777

What is data visualization

Course Introduction：Data visualization refers to displaying data in visual forms such as charts, graphs, maps, etc., in order to better understand and analyze the data. Through data visualization, complex data can be transformed into visual forms that are easy to understand and explain, helping users discover the hidden meanings in the data. Patterns, trends and associations, understand data more intuitively, discover patterns and insights, and obtain valuable information and insights. Data visualization is widely used in various fields, including business, science, sociology, medicine, etc., to help Decision makers make smarter decisions.

2024-01-11 comment 0 1473

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