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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11327

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 17632

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 11338

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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Jian Wang 3 Unbounded Changgemen Xiangzhi strange acupoints and output techniques strategy guide

Course Introduction：How to point the strange acupoints in Jian Wang 3 Unbounded Changgemen Xiangzhi? Xiangzhi is Changgemen's healing shield method, which can provide the team with blood increase, damage reduction, and various buff effects. The following is a detailed explanation of Changgemen Xiangzhi's strange points and their output methods. I hope it will be helpful to my friends. Changgemen Xiangzhi’s strange acupoints and their output techniques guide 1. Strange acupoint PVP: Yale·Wu→Yingze·Wu→Meiqing·Wu→Meihua Three Lanes·Wu PVE: Yinghu·Wu→Quyi·Wu→Mei Qing ·Enlightenment→Three Plum Blossom Movements·Enlightenment 2. Techniques PVP: Palace (Dian Book)/Sparse Shadow Horizontal (Dian Book)/One Finger Hui Luan (Secret Chapter)/Length Meaning (Jue Pian)/Gu Ying Hua Shuang (Qi Juan) ) PVE: Palace (Odd Scroll)/One Finger Huiluan (Secret Seal)/Sparse Shadow Horizontal (Odd Scroll)/Leng Yi (Secret Seal)/Jiao (Secret Seal)

2024-06-14 comment 0 399

In the C program, what is the area of a circle inscribed in a rhombus?

Course Introduction：Here we will see the area of a circle inscribed in a rhombus. The diagonals of the rhombus are 'a' and 'b' respectively. The radius of the circle is h. Two diagonals form four equal triangles. Every triangle is a right triangle, so their area is - Each side of the rhombus is the hypotenuse - Therefore, the area of the circle is - Example#include<iostream>#include<cmath>usingnamespacestd;floatarea(floata,floatb) { if(a<0||b<0)//ifthevaluesaren

2023-09-01 comment 0 1170

How to find the length of hypotenuse in Java?

Course Introduction：The hypotenuse is the longest side of a right triangle opposite the right angle. The length of the hypotenuse can be found using Pythagoras' theorem. According to the Pythagoras theorem, the sum of the squares of the lengths of two sides is equal to the square of the length of the third side, that is, a2+b2=c2 where a, b, and c represent the three sides of a right triangle. So,Hypotenuse=Math.sqrt(Math.pow(base,2)+Math.pow(height,2)) In this article, we will see how to find the length of the hypotenuse using Java programming language. Let me show you some examples. The Chinese translation of Instance-1 is: Example-1 Assume that the base length and height are 3 and 4 respectively. Then by using the Pythagorean theorem formula, Length

2023-09-09 comment 0 640

How to set video wallpaper on Xiaohongshu_How to set video wallpaper on Xiaohongshu

Course Introduction：1. Open the Xiaohongshu software, find the dynamic wallpaper you like, and click the share button in the upper right corner. 2. In the pop-up dialog box, click Save to Album in the lower left corner. 3. Open your mobile phone album, find the wallpaper you just saved, and click More. 4. In the pop-up dialog box, choose to set it as video wallpaper.

2024-04-07 comment 0 501

jQuery code implements the menu in the upper right corner of the dialog box to close ×_jquery

Course Introduction：This article mainly introduces the jQuery code to implement the relevant information of closing the menu with × in the upper right corner of the dialog box. Friends in need can refer to it.

2016-05-16 comment 0 1349

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