SQL Tutorials

SQL is an intuitive programming language with broad application scope, so solid SQL skills are essential for any data scientist. With our hands-on tutorials, you can learn the basics of SQL for free and build your relational database knowledge.

All Articles

TCL Statements in SQL: How to Manage Database Transactions?

SQL Tutorials

TCL Statements in SQL: How to Manage Database Transactions?

DCL In a Nutshell: A Brief Look into the SQL Data Control Language

SQL Tutorials

DCL In a Nutshell: A Brief Look into the SQL Data Control Language

A Beginner’s Guide to DML in SQL

SQL Tutorials

A Beginner’s Guide to DML in SQL

Getting Started with DDL in SQL: A Brief Overview

SQL Tutorials

Getting Started with DDL in SQL: A Brief Overview

Basic Database Terminology

SQL Tutorials

Basic Database Terminology

Database vs Spreadsheet: What’s the Difference?

SQL Tutorials

Database vs Spreadsheet: What’s the Difference?

What Are Joins?

SQL Tutorials

What Are Joins?

MySQL vs PostgreSQL: An Open Source Battle

SQL Tutorials

MySQL vs PostgreSQL: An Open Source Battle

How to Use SQL’s Limit Statement?

SQL Tutorials

How to Use SQL’s Limit Statement?

Solving a Business Task in SQL and Visualizing it in Tableau

SQL Tutorials

Solving a Business Task in SQL and Visualizing it in Tableau

How to Set up a Database in SQL

SQL Tutorials

How to Set up a Database in SQL

Data Manipulation: Integrating SQL and Tableau

SQL Tutorials

Data Manipulation: Integrating SQL and Tableau

When to Use the SQL CASE Statement

SQL Tutorials

When to Use the SQL CASE Statement

Working with Indexes in MySQL

SQL Tutorials

Working with Indexes in MySQL

Introduction to SQL Views

SQL Tutorials

Introduction to SQL Views