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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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How to display CPU on MSI Airplane

Course Introduction：To display CPU monitoring information in MSI Aircraft, you need to perform the following steps in sequence: Run MSI Airplane. Open the hardware monitoring panel. Enable CPU monitoring. Select the CPU metrics to monitor. Add widgets to your dashboard and customize it.

2024-03-31 comment 0 1257

How to use car computer detector to detect fault codes?

Course Introduction：1. How to use a car computer detector to detect fault codes? 1. Connect the corresponding fault detection plug to the fault detection socket on the car. 2. Select the testing program that is suitable for the vehicle type being tested. 3. Enter the vehicle identification code of the model being tested according to the prompts on the computer detector screen. 4. According to the functional scope and maintenance requirements of the car's computer fault self-diagnosis circuit, select various control systems such as the engine system, automatic transmission system, and anti-lock control system. 5. Select items such as reading fault codes, clearing fault codes, displaying computer data parameters, and testing actuator working conditions for inspection work. 2. What is the car fault code? #dalian#Whether various parts of the car are running healthily, various sensors gather in the driving computer center, and the yellow or red lights on the dashboard

2024-07-30 comment 0 754

How to add mouseover event to each li in jquery?

Course Introduction：jQuery can select a collection of tags through a selector. Then point to the current object through $(this). $("#ul li") can get all li under id. When the mouse passes over a certain li, $(this) is used to indicate that the current li object is operating.

2017-06-28 comment 0 4005

What are the jquery centralized selectors?

Course Introduction：jQuery is a well-known JavaScript library that provides some convenient methods to select, manipulate, and process HTML documents. Among them, selectors are one of the most commonly used functions of jQuery. jQuery provides a variety of selectors, and this article will introduce the centralized selector in detail. A concentrated selector refers to a method of matching multiple elements at the same time through a selector. These selectors use commas as separators and write multiple selectors together to select elements that meet any selector condition. Below are some commonly used focus options

2023-05-25 comment 0 540

What is attribute selector in jquery

Course Introduction：In jquery, the attribute selector is a selector based on element attributes as filter conditions, which refers to a way to select elements through "element attributes"; this selector can find elements with specific attributes or specific attribute values. That is, you can match HTML elements through existing attribute names or attribute values, and then operate on HTML elements with specified attributes. The jQuery attribute selector makes the selector function like a wildcard, a bit like a regular expression.

2023-03-10 comment 0 1791

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