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- Explain the ACID properties (Atomicity, Consistency, Isolation, Durability).
- ACID attributes include atomicity, consistency, isolation and durability, and are the cornerstone of database design. 1. Atomicity ensures that the transaction is either completely successful or completely failed. 2. Consistency ensures that the database remains consistent before and after a transaction. 3. Isolation ensures that transactions do not interfere with each other. 4. Persistence ensures that data is permanently saved after transaction submission.
- Mysql Tutorial . Database 897 2025-04-16 00:20:11
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- MySQL: Database Management System vs. Programming Language
- MySQL is not only a database management system (DBMS) but also closely related to programming languages. 1) As a DBMS, MySQL is used to store, organize and retrieve data, and optimizing indexes can improve query performance. 2) Combining SQL with programming languages, embedded in Python, using ORM tools such as SQLAlchemy can simplify operations. 3) Performance optimization includes indexing, querying, caching, library and table division and transaction management.
- Mysql Tutorial . Database 381 2025-04-16 00:19:31
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- MySQL: Managing Data with SQL Commands
- MySQL uses SQL commands to manage data. 1. Basic commands include SELECT, INSERT, UPDATE and DELETE. 2. Advanced usage involves JOIN, subquery and aggregate functions. 3. Common errors include syntax, logic and performance issues. 4. Optimization tips include using indexes, avoiding SELECT* and using LIMIT.
- Mysql Tutorial . Database 526 2025-04-16 00:19:11
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- PHP: An Introduction to the Server-Side Scripting Language
- PHP is a server-side scripting language used for dynamic web development and server-side applications. 1.PHP is an interpreted language that does not require compilation and is suitable for rapid development. 2. PHP code is embedded in HTML, making it easy to develop web pages. 3. PHP processes server-side logic, generates HTML output, and supports user interaction and data processing. 4. PHP can interact with the database, process form submission, and execute server-side tasks.
- PHP Tutorial . Backend Development 877 2025-04-16 00:18:01
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- PHP and the Web: Exploring its Long-Term Impact
- PHP has shaped the network over the past few decades and will continue to play an important role in web development. 1) PHP originated in 1994 and has become the first choice for developers due to its ease of use and seamless integration with MySQL. 2) Its core functions include generating dynamic content and integrating with the database, allowing the website to be updated in real time and displayed in personalized manner. 3) The wide application and ecosystem of PHP have driven its long-term impact, but it also faces version updates and security challenges. 4) Performance improvements in recent years, such as the release of PHP7, enable it to compete with modern languages. 5) In the future, PHP needs to deal with new challenges such as containerization and microservices, but its flexibility and active community make it adaptable.
- PHP Tutorial . Backend Development 137 2025-04-16 00:17:21
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- MySQL's Purpose: Storing and Managing Data Effectively
- MySQL is an efficient relational database management system suitable for storing and managing data. Its advantages include high-performance queries, flexible transaction processing and rich data types. In practical applications, MySQL is often used in e-commerce platforms, social networks and content management systems, but attention should be paid to performance optimization, data security and scalability.
- Mysql Tutorial . Database 237 2025-04-16 00:16:40
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- Why Use PHP? Advantages and Benefits Explained
- The core benefits of PHP include ease of learning, strong web development support, rich libraries and frameworks, high performance and scalability, cross-platform compatibility, and cost-effectiveness. 1) Easy to learn and use, suitable for beginners; 2) Good integration with web servers and supports multiple databases; 3) Have powerful frameworks such as Laravel; 4) High performance can be achieved through optimization; 5) Support multiple operating systems; 6) Open source to reduce development costs.
- PHP Tutorial . Backend Development 428 2025-04-16 00:16:21
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- Debunking the Myths: Is PHP Really a Dead Language?
- PHP is not dead. 1) The PHP community actively solves performance and security issues, and PHP7.x improves performance. 2) PHP is suitable for modern web development and is widely used in large websites. 3) PHP is easy to learn and the server performs well, but the type system is not as strict as static languages. 4) PHP is still important in the fields of content management and e-commerce, and the ecosystem continues to evolve. 5) Optimize performance through OPcache and APC, and use OOP and design patterns to improve code quality.
- PHP Tutorial . Backend Development 160 2025-04-16 00:15:31
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- SQL and MySQL: Understanding the Relationship
- The relationship between SQL and MySQL is the relationship between standard languages and specific implementations. 1.SQL is a standard language used to manage and operate relational databases, allowing data addition, deletion, modification and query. 2.MySQL is a specific database management system that uses SQL as its operating language and provides efficient data storage and management.
- Mysql Tutorial . Database 410 2025-04-16 00:14:00
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- HTML vs. CSS vs. JavaScript: A Comparative Overview
- The roles of HTML, CSS and JavaScript in web development are: HTML is responsible for content structure, CSS is responsible for style, and JavaScript is responsible for dynamic behavior. 1. HTML defines the web page structure and content through tags to ensure semantics. 2. CSS controls the web page style through selectors and attributes to make it beautiful and easy to read. 3. JavaScript controls web page behavior through scripts to achieve dynamic and interactive functions.
- HTML Tutorial . Web Front-end 700 2025-04-16 00:04:13
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- The PHP vs. Python Debate: Which is Better?
- PHP and Python have their own advantages and disadvantages, and the choice depends on the project requirements. 1) PHP is suitable for web development, easy to learn, rich community resources, but the syntax is not modern enough, and performance and security need to be paid attention to. 2) Python is suitable for data science and machine learning, with concise syntax and easy to learn, but there are bottlenecks in execution speed and memory management.
- PHP Tutorial . Backend Development 674 2025-04-16 00:03:11
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- Two Images and an API: Everything We Need for Recoloring Products
- I recently found a solution to dynamically update the color of any product image. So with just one of a product, we can colorize it in different ways to show
- CSS Tutorial . Web Front-end 628 2025-04-15 11:27:13
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- Weekly Platform News: Impact of Third-Party Code, Passive Mixed Content, Countries with the Slowest Connections
- In this week's roundup, Lighthouse sheds light on third-party scripts, insecure resources will get blocked on secure sites, and many country connection speeds
- CSS Tutorial . Web Front-end 369 2025-04-15 11:19:12
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- Options for Hosting Your Own Non-JavaScript-Based Analytics
- There are loads of analytics platforms to help you track visitor and usage data on your sites. Perhaps most notably Google Analytics, which is widely used
- CSS Tutorial . Web Front-end 387 2025-04-15 11:09:13
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- It's All In the Head: Managing the Document Head of a React Powered Site With React Helmet
- The document head might not be the most glamorous part of a website, but what goes into it is arguably just as important to the success of your website as its
- CSS Tutorial . Web Front-end 765 2025-04-15 11:01:11