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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11450

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 17735

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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How do bar charts present data?

Course Introduction：Bar charts present data as "straight bars." A bar chart uses one unit length to represent a certain quantity. Straight bars of different lengths are drawn according to the quantity, and then these straight bars are arranged in a certain order. It is easy to see various types of bars from the bar chart. Quantity. Bar charts are divided into: single bar chart and compound bar chart. The former only represents the data of one item, while the latter can represent the data of multiple items at the same time.

2021-01-20 comment 0 21435

Learn to draw line charts, bar charts and pie charts with Python in three minutes

Course Introduction：Learn to draw line charts, bar charts, and pie charts with Python in three minutes. Python is a very popular programming language that is widely used in data analysis and visualization. In this article, we will learn how to draw three common types of charts using Python: line charts, bar charts, and pie charts. I'll provide you with specific code examples to help you get started quickly. Line Chart A line chart is a type of chart that shows trend changes by connecting data points. In Python, we can use the matplotlib library to plot

2023-09-27 comment 0 1356

ECharts and Java interface: How to quickly implement statistical charts such as line charts, bar charts, pie charts, etc.

Course Introduction：ECharts and Java interface: How to quickly implement statistical charts such as line charts, bar charts, and pie charts. Specific code examples are required. With the advent of the Internet era, data analysis has become more and more important. Statistical charts are a very intuitive and powerful display method. Charts can display data more clearly, allowing people to better understand the connotation and patterns of the data. In Java development, we can use ECharts and Java interfaces to quickly display various statistical charts. ECharts is a software developed by Baidu

2023-12-17 comment 0 1713

jQuery pie chart development example_jquery

Course Introduction：This article mainly introduces the method of developing jQuery circular statistics chart, and analyzes the usage and usage skills of circliful plug-in with examples. It is of great practical value. Friends who need it can refer to it.

2016-05-16 comment 0 1892

CSS Gradient Statistical Column Chart_Experience Exchange

Course Introduction：When writing column charts in the past, I used a picture base with a width of 1px. This can be achieved by assigning a percentage to the width. When I was writing a small statistics last night, I wanted to use CSS to write a gradient!

2016-05-16 comment 0 1448

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