MySQL – Relational Database

MySQL is the world’s most popular open-source relational database management system. Owned by Oracle, it powers countless websites and applications with reliable data storage and retrieval.

Key Features

• ACID Compliance: Reliable transaction support
• Replication: Master-slave and group replication
• InnoDB Engine: High-performance storage engine
• Full-Text Search: Built-in search capabilities
• Stored Procedures: Server-side programming

Installation

Install MySQL on Ubuntu:

sudo apt update
sudo apt install mysql-server
sudo mysql_secure_installation
sudo systemctl enable mysql

Usage Examples

Basic MySQL operations:

# Connect to MySQL
mysql -u root -p

# Create database
CREATE DATABASE myapp;

# Create table
CREATE TABLE users (
    id INT AUTO_INCREMENT PRIMARY KEY,
    name VARCHAR(100) NOT NULL,
    email VARCHAR(255) UNIQUE
);

Benefits

MySQL offers proven reliability for mission-critical applications. Its extensive documentation, large community, and widespread hosting support make it an excellent choice for web applications.

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