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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 17622

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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jQuery implements dark QQ customer service effect code displayed on the right side that can be displayed by sliding to the left

Course Introduction：This article mainly introduces the jQuery implementation of the dark QQ customer service effect code that can be displayed on the right side and can be swiped to the left. It involves the implementation skills of jQuery controlling the dynamic transformation of page element styles. It has certain reference value. Friends in need can refer to it.

2016-05-16 comment 0 1424

How to achieve horizontal scrolling effect through CSS Flex layout

Course Introduction：Summary of how to achieve horizontal scrolling effect through CssFlex elastic layout: In web development, sometimes we need to display a series of items in a container and hope that these items can scroll horizontally. At this time, you can use CSSFlex elastic layout to achieve the horizontal scrolling effect. We can easily achieve this effect by adjusting the properties of the container with simple CSS code. In this article, I will introduce how to use CSSFlex to achieve a horizontal scrolling effect and provide specific code examples. CSSFl

2023-09-27 comment 0 2147

jquery implements dynamic sliding menu effect that can be expanded horizontally and vertically_jquery

Course Introduction：This article mainly introduces jquery to realize the dynamic sliding menu effect that can be expanded horizontally and vertically. It analyzes in detail the related techniques of jquery to realize horizontal and vertical expansion menus in the form of examples. It is of great practical value and friends in need can refer to it. Down

2016-05-16 comment 0 1289

JQuery implements gorgeous horizontal drop-down menu_jquery

Course Introduction：In the past, I often saw menus displayed on websites. When the mouse is moved up, a drop-down effect will appear. The following is an introduction to the horizontal drop-down menu implemented by JQuery.

2016-05-16 comment 0 1610

Implementing the display and hiding of the top navigation when the page is scrolled based on jquery_jquery

Course Introduction：This article mainly introduces the effect of hiding the top navigation when scrolling the page based on jquery. When the page scrolls down, the navigation menu is dynamically hidden. When the page scrolls to the top, the navigation menu is dynamically displayed. Taobao has also used this effect. It feels like Interested friends can refer to it

2016-05-16 comment 0 1260

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