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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11312

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 17626

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 11329

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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JS implements a beautiful mouse-following color bubble effect (code attached)

Course Introduction：The following article will introduce you to JS to achieve a beautiful mouse-following color bubble effect. The sample code in the article is introduced in great detail. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.

2020-06-16 comment 0 2623

Detailed example of using JS to implement bubbles following mouse movement animation special effects

Course Introduction：The bubbles follow the movement of the mouse and produce different changes every time it is clicked. The effect is very charming. The editor below brings you the example code of the bubble effect based on js. Friends who need it can refer to it.

2017-09-18 comment 0 1999

How to implement a bubble box when the mouse passes over it

Course Introduction：Mouse effects are now emerging in endlessly. This article mainly brings you a simple example of a bubble box appearing when the mouse passes over it. I think it is quite good, so I will share it with you now and give it as a reference. Let's follow the editor to take a look, hoping to better master the mouse effects.

2018-01-22 comment 0 1876

jQuery blue style sliding navigation bar code sharing_jquery

Course Introduction：This article mainly introduces the jQuery blue style sliding navigation bar special effect, which enables the slider to slide left and right following the mouse. It is simple, fashionable and generous. Friends in need can refer to it.

2016-05-16 comment 0 1685

How to use JS to make the ball follow the movement of the mouse

Course Introduction：This article mainly introduces the animation effect of multiple colored balls following the mouse movement implemented by native JS, involving javascript event response, dynamic modification of page element attributes and random number application and other related operation skills. Friends in need can refer to the following

2018-06-08 comment 0 3063

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