SQL Tutorial

📁 What is a Database?

A database is an organized collection of data that can be easily accessed, managed, and updated. In SQL, we usually interact with relational databases where data is stored in tables (rows and columns).

🧠 What is SQL?

SQL (Structured Query Language) is the language used to interact with databases. It allows you to create, read, update, and delete data — often referred to as CRUD operations.

⚙️ Basic SQL Operations

• CREATE DATABASE: Creates a new database.
• CREATE TABLE: Creates a new table inside a database.
• INSERT INTO: Adds new records to a table.
• SELECT: Retrieves data from one or more tables.
• UPDATE: Modifies existing records.
• DELETE: Deletes records from a table.

💡 Tip: Always make sure to backup your data before using UPDATE or DELETE commands, especially in production environments.