Learning SQL is a must for every data analyst. These free sites will help you level up your skill:

🥪 KDNuggets

Learn how to create a table, insert values, and use SQL commands to solve this case study.

Learn more: t.ly/sql-case-study

🥙 InterviewQuery

Work through example business issues, define metrics, and write the SQL to solve each problem.

Learn more: interviewquery.com/p/sql-case-study

🌮 Select Star SQL

Aims to be the best place on the internet for learning SQL. A great option for beginners!

Learn more: selectstarsql.com

🥡 SQLTutorial.org

Get started with SQL quickly and effectively through many practical examples.

Learn more: www.sqltutorial.org

🌯 Mode SQL Tutorial

Learn to answer questions with data using SQL. No coding experience is necessary.

Learn more: mode.com/sql-tutorial

🥗 8WeekSQLChallenge

Practice solving 8 real-world business problems across 8 well-crafted case studies.

Learn more: 8weeksqlchallenge.com

🍱 W3 Schools SQL Tutorial

Another good one for beginners, W3 Schools covers all of the SQL basics in bite-sized lessons.

Learn more: w3schools.com/sql

Practicing SQL for 30 minutes each day will help keep your data analytics skills sharp.

Check out each of these free SQL tutorial sites, find one that works for you, and get started!