`SQL` *Learning and Practicing SQL: Resources and Platforms* 1. https://sqlbolt.com/ 2. https://sqlzoo.net/ 4. https://learnsql.com/?ref=yjhhmmm 5. https://www.codecademy.com/learn/learn-sql 6. https://t.me/sqlresourcestp 7. https://www.w3schools.com/sql/ 8. https://www.hackerrank.com/domains/sql 9. https://www.windowfunctions.com/ 10. https://selectstarsql.com/ 11. https://quip.com/2gwZArKuWk7W 12. https://leetcode.com/problemset/database/ 13. http://thedatamonk.com/