AL2Meta

MySQL

MySQL is an open-source relational database management system (RDBMS).

MySQL is software used to store, organize, and retrieve structured data using SQL (Structured Query Language).

In simple terms:
👉 MySQL is where your website or application’s data lives.

What MySQL is used for

  • Storing user accounts, passwords, profiles
  • Managing blog posts, comments, products
  • Powering dynamic websites and web apps
  • Backend for systems like WordPress, WooCommerce, Laravel, etc.

Key features

  • 📦 Relational: data stored in tables with rows & columns
  • 🔑 Supports primary keys, indexes, foreign keys
  • ⚡ Fast and efficient for read-heavy workloads
  • 🔓 Open-source (owned by Oracle)
  • 🌍 Works on Linux, Windows, macOS

Example

A table called users:

idnameemail
1Alex[email protected]

Querying it:

SELECT name FROM users WHERE id = 1;

How MySQL fits into web development

Common stack:

  • Apache → handles web requests
  • PHP → processes logic
  • MySQL → stores data

This is the classic LAMP stack:
Linux + Apache + MySQL + PHP

MySQL vs similar databases

  • MySQL vs PostgreSQL → PostgreSQL is more strict & feature-rich
  • MySQL vs SQLite → SQLite is file-based, MySQL is server-based
  • MySQL vs MongoDB → MySQL is SQL/relational, MongoDB is NoSQL

Leave a Reply