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A complete set of MySQL tutorials - MySQL hot interview questions

Course4437

Course Introduction：MySQL is one of the most popular relational databases and is widely used in various fields. This course mainly explains the common objects in MySQL, and explains the optimization strategies in detail, and uses cases to give us an in-depth understanding of SQL optimization strategies. After studying this course, we can independently complete various SQL optimizations and improve the performance of the system.

PHP string processing (Jade Girl Heart Sutra version)

Course8083

Course Introduction：The processing and analysis of strings is an important foundation in any programming language. The classification, parsing, storage and display of information, as well as data transmission in the network, all require the manipulation of strings. It is particularly important in web development. Most of the work of programmers is to operate strings, so string processing also reflects a programming ability of programmers.

Using PHP object-oriented ideas to encapsulate each class

Course24479

Course Introduction：Object-oriented programming using php

Front-end Vue3 actual combat [handwritten vue project]

Course2857

Course Introduction：Course introduction: 1. Cross-domain processing, token management, route interception; 2. Real interface debugging, API layer encapsulation; 3. Secondary encapsulation of Echarts and paging components; 4. Vue packaging optimization and answers to common problems.

APIPOST tutorial [Popularization of technical concepts related to network communication]

Course1795

Course Introduction：Apipost is an API R&D collaboration platform that integrates API design, API debugging, API documentation, and automated testing. It supports grpc, http, websocket, socketio, and socketjs type interface debugging, and supports privatized deployment. Before formally learning ApiPost, you must understand some related concepts, development models, and professional terminology. Apipost official website: https://www.apipost.cn

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Best way to preload route data before accessing the route.
Before rendering the page for a given route, I want to first get the necessary data synchronously. Ideally I'd like to get the data in the page component, but I'm not opposed to doing it in the router file. I've read and tried various approaches, but part of the challenge comes from the fact that there are multiple ways to build components, and the use of certain features varies. In my case, I use CompositionAPI and syntax to build single file components. The VueRouter documentation link talks about "get before navigation" where I have access to beforeRouteEnte
2023-11-17 14:54:42

Catching Guzzle exceptions
I'm trying to catch exceptions in a set of tests running on an API I'm developing, and I'm using Guzzle to consume the API methods. I have wrapped the test in a try/catch block but it still throws an unhandled exception error. Adding an event listener as described in their documentation doesn't seem to do anything. I need to be able to retrieve responses with HTTP codes 500, 401, 400, in fact any response that is not 200, because if that doesn't work the system will set the most appropriate code based on the result of the call. Current code example foreach
2023-11-16 14:36:03

How to set Laravel Spatie permission setting method to define a set of permissions for each user based on role?
I have 4 types of users using my system: 1. Super Admins 2. Team Super Admins, 3. Administrators and 4. Managing team members, since I use spatie to handle roles and permissions, I have a set of modules (permissions) that are common to all types of users, and another set of modules (permissions) that are only for super admins, For example, payment methods, etc. Now, once my database is seeded for permission, do I have to seed it all at once? ['contacts','email','bids'] comes with network protection (but I am really concerned about the protection
2023-11-14 12:58:58

Resolving django.db.utils.NotSupportedError error in Django
I'm getting an error when running a project in Django. The problem is unfortunately I upgraded my pip, MySQL client and Django version and this is the error when running pythonmanage.pyrunserver incheck_database_version_supportedraiseNotSupportedError(django.db.utils.NotSupportedError:MariaDB10.3orlaterisrequ
2023-11-14 11:59:20

PHP trim unicode spaces
I'm trying to trim unicode spaces such as this character and I was able to do it using this solution. The problem with this solution is that it does not trim unicode spaces between normal characters. For example, this uses thin space $string=" test test string ";echopreg_replace('/^[\pZ\pC]+|[\pZ\pC]+$/u','',$string);//outputs:test str
2023-11-13 08:49:45

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How to deal with Laravel API error problems

Course Introduction：Title: How to deal with Laravel API error problems, specific code examples are needed. When developing Laravel, API errors are often encountered. These errors may come from various reasons such as program code logic errors, database query problems, or external API request failures. How to handle these error reports is a key issue. This article will use specific code examples to demonstrate how to effectively handle Laravel API error reports. 1. Error handling in Laravel

2024-03-06 comment 0220

How to deal with concurrent access issues in C# development

Course Introduction：How to deal with concurrent access issues in C# development In C# development, it is very important to deal with concurrent access issues, especially in a multi-threaded environment. If concurrent access is not handled correctly, it may lead to data inconsistency or program crashes. This article will introduce some common methods for dealing with concurrent access issues in C# development and provide specific code examples. Using the lock mechanism The lock mechanism is one of the most commonly used methods to deal with concurrent access problems. By using locks, you can ensure that only one thread can access a shared resource at a time

2023-10-08 comment 0213

How to deal with time processing issues in C++ development

Course Introduction：How to deal with time processing issues in C++ development Time processing is a very important issue in software development, especially in applications involving timing, scheduling, logging, etc. As a powerful programming language, C++ provides a variety of time processing methods and libraries. Using these methods and libraries in appropriate scenarios can simplify time processing work and improve the efficiency and accuracy of program development. Using the C++ standard library C++ provides the standard libraries ctime and chrono to handle time issues. ctime library

2023-08-22 comment 0593

How to deal with image processing problems in Python

Course Introduction：How to deal with image processing problems in Python Introduction: In today's digital era, image processing has become a very important field and is widely used in many fields such as computer vision, medical images, and image recognition. As a simple and easy-to-learn programming language, Python provides many powerful image processing libraries and tools, making image processing easier and more efficient. This article will introduce how to use Python to deal with image processing problems and provide specific code examples. 1. Introduction to image processing library Pytho

2023-10-08 comment 0566

How to deal with image processing and video processing issues in C# development

Course Introduction：How to deal with image processing and video processing issues in C# development requires specific code examples. Summary: Image processing and video processing occupy an important position in the fields of computer vision and media. This article will introduce how to use the C# programming language to handle image and video-related issues, and provide specific code examples. In terms of image processing, we'll discuss how to read, modify, and save images. In terms of video processing, we'll discuss how to read, edit, and save video. Keywords: C#, image processing, video processing, code example introduction image processing

2023-10-09 comment 0263

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