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MySQL database technology knowledge shared daily

Course18026

Course Introduction：The most commonly used PHP dynamic website development is the MYSQL database. PHP Chinese website's "Daily Sharing of MySQL Database Technology Knowledge" course shares some common PHP MySQL database knowledge every day and explains these common knowledge points in the form of videos. ! From basic to advanced, the difficult points are broken down, each knowledge point takes about 5 minutes, and we strive to be easy to understand and create a small knowledge base of high-quality MySQL databases!

10 complete small projects in Python to teach you crawlers + data analysis + data visualization

Course2765

Course Introduction：Reprinted from Bilibili: https://www.bilibili.com/video/BV1Ja411c74f

Detailed analysis of laravel and swoole connection pool operation database

Course2823

Course Introduction：If you have any questions, please send us a message via WeChat: Le-studyg; This course aims to deeply explore how to use the Swoole extension to operate the database connection pool in the Laravel framework. The course will start with basic concepts, introduce the basic principles and usage of Swoole, and then focus on how to integrate with the Laravel framework. Students will learn how to configure and manage database connection pools to improve the performance and concurrency of database operations. The course will also cover actual case studies and best practices to help students better understand and apply this technology. Whether you are a Laravel developer or a developer interested in Swoole connection pool operation database, this course will open new doors for you to learn and practice.

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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How to list data in a section by ID using while loop in PHP?
I have a mysql table with these columns: series_id, series_color, product_name In the output I want to list the data by sections, one section per series_id like this: A12SeriesProduct-Milk-Tea-sugar-waterB12SeriesProduct-Water-Banana -Cofee-Tea
2023-11-17 20:03:03

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

Implement filters and pagination using Laravel Eloquent
I'm trying to create an API that will return all customer records from a database. But this provides paging and filtering functionality. , the filter function is an optional query parameter. So it doesn't have to be included in the query parameters. But I'm having problems doing this. This is the index method in the CustomerController file: publicfunctionindex(Request$request){//Gethowmanyitemperpage$itemPerPage=$request-&
2023-11-12 18:42:35

MoreQ&A

The difference between group by and sort by in SQL

Course Introduction：In this article, we will understand the difference between groupby and orderby in SQL. GROUPBY It is used to group rows with the same value. It can be used in CREATEVIEW statement. In the select statement, it must be used before the "ORDERBY" keyword. Attributes cannot appear in a "GROUPBY" statement when they are under an aggregate function. Tuples are grouped based on how similar their attribute values are. It controls the rendering/rowing of tuples. ORDERBY it does not use the "CREATEVIEW" statement. The result set is sorted in ascending or descending order. It is used after the "groupby" keyword. This property can be located under aggregate functions. It controls the rendering of columns. The following is a single query

2023-09-20 comment 0644

Huanta Luo Tianyi face pinching data ID code sharing

Course Introduction：The Huanta mobile game provides a powerful face-squeezing system. Players can design images for their characters according to their preferences. Some players like Luo Tianyi's image very much. Below, the editor will share the face-squeezing data of Luo Tianyi in Huanta. . -Huanta Luo Tianyi's face pinching data ID code sharing face pinching code ID: 4005735 Data import method 1. First enter the face pinching system interface and click the function in the lower left corner of the data. 2. Then enter the winning data code in the input image ID column. 3. Click OK to complete the data import, and you can further modify and adjust the character image on the data.

2024-03-31 comment 0887

Specify the basis for removing duplicate elements when deduplicating PHP arrays

Course Introduction：PHP's array_unique() function is used to remove duplicate elements from an array. By default, strict equality (===) is used. We can specify the basis for deduplication through a custom comparison function: create a custom comparison function and specify the deduplication standard (for example, based on element length); pass the custom comparison function as the third parameter to the array_unique() function. Remove duplicate elements based on specified criteria.

2024-04-28 comment 0638

Oracle example explains grouped data in detail

Course Introduction：This article brings you relevant knowledge about Oracle. It mainly organizes issues related to grouped data. Grouping allows data to be divided into logical groups so that aggregate calculations can be performed on each group. Let’s take a look at it together. I hope everyone has to help.

2022-07-19 comment 02042

What is the basis for classifying computers internationally?

Course Introduction：Internationally, computers are classified based on their performance. Computers can be divided into supercomputers, mainframe computers, minicomputers, microcomputers, workstations and servers.

2020-11-16 comment 018636

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