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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11366

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 17666

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 11381

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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How many Transformer layers are used in the BERT model?

Course Introduction：BERT is a pre-trained language model that uses Transformer as the network structure. Compared with recurrent neural network (RNN), Transformer can be calculated in parallel and can effectively process sequence data. In the BERT model, a multi-layer Transformer is used to process the input sequence. These Transformer layers utilize the self-attention mechanism to model the global correlation of the input sequence. Therefore, the BERT model is able to better understand contextual information, thereby improving the performance of language tasks. The BERT model consists of two main stages: pre-training and fine-tuning. The pre-training stage uses a large-scale corpus for unsupervised learning to learn contextual information of the text and obtain language model parameters.

2024-01-22 comment 0 661

Java implements the exam arrangement module in the online exam system

Course Introduction：Java implements the exam arrangement module in the online exam system. With the rapid development of the Internet, more and more educational institutions and training institutions have begun to use online exam systems for exam management. Among them, the examination arrangement module is an important part of the online examination system. It is responsible for the arrangement of examination time and the management of examination information. This article will introduce how to use Java language to implement the exam arrangement module and provide specific code examples. 1. Design the data structure of the exam arrangement module. In the exam arrangement module, the information that needs to be stored includes the exam name.

2023-09-26 comment 0 946

How to use Go language for machine learning

Course Introduction：How to use Go language for machine learning Introduction: Machine learning is one of the hot topics in the computer field today. It can make computers intelligent by training models. Python is currently the most widely used machine learning programming language, but in fact, the Go language also provides some powerful machine learning libraries and tools. This article will introduce how to use the Go language for machine learning, and provide detailed instructions with code examples. 1. Install Go language and related libraries. Download and install Go language: from the official website https://g

2023-08-02 comment 0 1801

Golang and the Template package: building reusable HTML templates

Course Introduction：Golang and Template package: Build reusable HTML templates Whether you are developing web applications, building websites or generating HTML reports, HTML templates are an indispensable part. Using templates allows you to dynamically insert data into predefined HTML structures, allowing us to easily create reusable page layouts and content. In the Go language, the built-in html/template package provides a powerful and easy-to-use template engine. It supports template nesting, conditional judgment, loop iteration and other functions

2023-07-17 comment 0 1609

How to build a responsive and accessible website using PHP

Course Introduction：How to Build Responsive and Accessible Websites Using PHP Summary: In today’s digital world, building responsive and accessible websites is becoming more and more important. This article will introduce how to use the PHP programming language to build a website with responsive design and accessibility features, and provide some practical tips and tools. Introduction With the popularity of mobile Internet and smart devices, people's demand for accessing websites is also increasing. Whether on a computer, tablet or mobile phone, users want to be able to access websites that fit their needs on any device

2023-09-12 comment 0 1528

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