MySQL

Views in MySQL

1. What is a View? A view is a virtual table created from the result of an SQL query. It does not store data physically, but acts like a table. Useful...

🐬 MySQL Basics

🐬 MySQL Basics 1. What is MySQL? MySQL is an open-source relational database management system (RDBMS). Stores data in tables (rows & columns). Uses SQL (Structured Query Language) to query and...

How to Choose between SQL vs NoSQL databases?

✅ Choose SQL (Relational Database like MySQL, PostgreSQL) when: 1. Structured Data with Clear Schema You have defined tables, relationships, and constraints. Data doesn’t change its structure often. 2. ACID...

Database Schema Design - Best Practices

Designing a good database schema is essential for performance, scalability, and maintainability. Here are the best practices for database schema design, categorized for clarity: ✅ 1. Understand the Business Requirements...

Database Normalization

In databases, 1N, 2N, 3N refer to 1NF, 2NF, 3NF — the first three normal forms in database normalization. These are rules to organize relational data efficiently and eliminate redundancy....