SQL Tutorial

Welcome to our SQL tutorial! This guide will help you understand the basics of Structured Query Language (SQL), which is used to manage and manipulate databases.

What is SQL?

SQL stands for Structured Query Language. It is a domain-specific language used in programming and designed for managing and manipulating databases.

Key Features of SQL:

Declarative Language: SQL is a declarative language, meaning you specify what you want to achieve rather than how to achieve it.
Standardized: SQL is standardized by the American National Standards Institute (ANSI) and the International Organization for Standardization (ISO).
Versatile: SQL can be used to perform a wide range of tasks, such as creating, retrieving, updating, and deleting data.

Getting Started

Basic Syntax

SELECT: Used to retrieve data from a database.
FROM: Specifies the table from which to retrieve data.
WHERE: Filters the data based on a condition.

Example:

SELECT * FROM customers WHERE country = 'USA';

Creating a Database

To create a new database, you can use the following SQL statement:

CREATE DATABASE <database_name>;

Replace <database_name> with the desired name for your database.

Practice

Would you like to practice SQL? Try our interactive SQL tutorial here.