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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11279

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 11314

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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Course Introduction：June is a sad month of farewell. Today, no matter how much reluctance there is in my heart, it is time to say goodbye again. Classmate, I wish you are still well in the days when you are about to go away. PHP Chinese website recommends several graduation season-themed website materials for you to download, adding a bit of joy to the sad June. 1. Youth does not graduate PSD poster 2. We graduated PSD layered design 3. Graduation season cover to youth 4. Meet again PSD graduation season poster 5. Class reunion advertising poster design psd [Related recommendations]: 5 beautiful PS fonts Download rankings, with a simple installation method for ps fonts...

2017-06-14 comment 0 1134

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2017-06-10 comment 0 1243

Graduation project purchase, sale and inventory management system - starting from the basic construction

Course Introduction：Four years of college and about to graduate! This is my last blog during college. I summarize and share my graduation project. The title of my thesis is "Backend Design of Gas Pipeline Network Equipment and Instrument Purchase, Sales and Inventory Management System". Since I am the only one taking the technical route in our major, I completed the design and development of the entire system by myself, which took nearly a total of One month later, I finally got excellent results. We will not discuss papers here, nor write down specific implementation details. We will mainly talk about how to build your own system framework and system implementation step by step, and share your own experiences. Novices can learn from each other, and experts can treat it as my own contribution! ! blog

2017-06-26 comment 0 2363

Steps to implement multi-level classification function in PHP Developer City

Course Introduction：Steps to implement the multi-level classification function in PHP Developer City With the rapid development of e-commerce, more and more companies choose to use PHP to develop their own mall websites. The multi-level classification function in the mall website is an extremely important and common function point. This article will introduce the steps to implement the multi-level classification function in the PHP developer mall. Database design First, we need to design the database table structure to store classified data. Generally speaking, we will design a table named "categories" to store classification information. The table can contain

2023-07-01 comment 0 1494

Using the Service Layer Pattern in PHP for Clean and Scalable Code

Course Introduction：The Service Layer pattern is a popular design approach for handling business logic in PHP applications. By separating application logic from the framework, we create a scalable, testable, and maintainable codebase. In this article, we’ll walk through

2024-11-01 comment 0 562

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