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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11330

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 11347

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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SVG-based odometer digital motion blur special effects plug-in

Course Introduction：odoo.js is an odometer digital motion blur special effects plug-in based on HTML5 SVG. This plug-in is used to simulate the effect of rapid flipping of odometer numbers. It's easy to use and has a motion blur effect when the numbers are flipped, which is very cool.

2017-01-18 comment 0 1669

Easy-to-operate jQuery form prompt plug-in_jquery

Course Introduction：This article mainly introduces the easy-to-operate jQuery form prompt plug-in. You can use it to easily add fade-in and fade-out animation effect prompts to form controls. Interested friends can refer to it.

2016-05-16 comment 0 1041

The role of slots in vue

Course Introduction：Slots in Vue allow you to define areas of replaceable content within a component, enabling the insertion of other components or HTML fragments. Slots work by defining placeholders via <slot> tags through which child components can insert content. Vue provides three types of slots: default, named, and scoped slots. Slots are useful in scenarios such as creating dynamic forms, customizable widgets, and extracting reusable component logic.

2024-05-02 comment 0 1003

User management--implementing secondary linkage using jquery's ajax

Course Introduction：Page effect implementation steps 1. Introduce struts plug-in package that integrates json 2. The page uses jquery's ajax to call the second-level linkage of js//ajax's second-level linkage, and uses the selected unit to query the list of corresponding unit names under the unit. function findJctUnit(o){ //The text content of the unit to which the goods belong var jct = $(o).find("option:selected").t

2017-07-20 comment 0 1331

A summary of what you need to pay attention to about CSS

Course Introduction：This is a focus picture animation plug-in based on jQuery and CSS3. The plug-in is very mini and has relatively simple functions. Its feature is that the picture switching button is similar to a timeline. Click the circle on the timeline to switch to the corresponding picture. When you click the switch button, the button will have a luminous effect that fades in and out. During the image switching process, the transition effect of the entire image is very soft, and the image description is also displayed on the image in an animated manner. It is a very good CSS3 Image switching component. Online demo source code download HTML code: <p id="ga...

2017-06-15 comment 0 1317

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