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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11313

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 17627

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 11330

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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javascript - How to solve the js mouse wheel event problem

When using jquery, the mouse wheel can be triggered regardless of the height of the body (please scroll the wheel under the result for the following address) https://jsfiddle.net/shannon9/37fj5Lbs/embedded/ When using native js, When setting the height of the body (rolling appears...

2017-05-19 10:09:15

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

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Use jQuery or native js to implement mouse scrolling to load new data on the page_jquery

Course Introduction：This article mainly introduces the method of using jQuery or native js to implement mouse scrolling to load new data on the page, that is, controlling the loading event when the scroll bar is pulled down. Friends in need can refer to the following

2016-05-16 comment 0 2006

Native JS implements smooth return to the top component_javascript skills

Course Introduction：The return to top component is an extremely common web page function with simple requirements: after the page scrolls a certain distance, a return to top button is displayed. Clicking this button can scroll the scroll bar back to the beginning of the page. Next, this article will introduce to you the native JS implements smooth return to the top component. Friends who need it can refer to it.

2016-05-16 comment 0 2137

jQuery dynamic cloud tag plug-in_jquery

Course Introduction：Here is a jquery dynamic cloud label plug-in recommended to you. It is very cool. It dynamically generates a label within a specified block-level element. The height, width, position, number of layers, and background color of the a label are randomly controllable. The a label fades out. Display and fade away, the initial transparency can be changed, the mouse hover stops the animation and the transparency is the maximum, the number of layers is the highest, the mouse leaves, the previous state is restored

2016-05-16 comment 1 1512

What are MySQL triggers? Principle and application analysis

Course Introduction：What are MySQL triggers? Principle and Application Analysis MySQL trigger is a stored procedure that will be automatically executed when a specific operation (such as insert, update, delete) occurs in a specified table. Triggers can be used to monitor and respond to data changes in the database to implement data constraints, business logic automation and other functions. In MySQL, triggers can greatly simplify developers' work and improve data consistency and integrity. Principle analysis The principle of MySQL trigger is based on the event-driven model. When a specified event

2024-03-16 comment 0 643

What is maven life cycle

Course Introduction：The Maven life cycle is one of the core concepts of the Maven build tool, which provides a standardized and automated framework for project construction. The Maven life cycle can be divided into clean, default and site, and each stage is completed by one or more plug-in goals. By configuring the POM file, developers can flexibly customize the build process to meet the specific needs of the project. This lifecycle-based construction approach enables teams to efficiently manage and maintain complex software projects.

2024-01-03 comment 0 1341

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