Here are some other SQL Learning resources I have collected in my note taking TiddlyWiki (mostly from HN itself).

Interactive SQL Tutorials :

▪ Chartio Interactive PostgreSQL SQL Tutorial - https://chartio.com/learn/sql/

▪ Select STAR SQL - https://selectstarsql.com/

▪ SQL Bolt - Learn SQL with simple, interactive exercises - https://sqlbolt.com/

▪ SQL Window functions - https://www.windowfunctions.com/

▪ PostgreSQL Exercises - https://pgexercises.com/

▪ SQL Zoo - http://sqlzoo.net/

▪ SQL Teaching - https://www.sqlteaching.com/

▪ ByteScout SQL Trainer - Use live data to train - https://app.bytescout.com/sql-trainer/index.html

▪ Schemaverse - A space-based strategy game implemented entirely within a PostgreSQL database - https://schemaverse.com/

▪ Oracle Live SQL - Lerarn and share SQL - https://livesql.oracle.com/

▪ GalaXQL 3.0 - an intractive tutorial with exploring the galaxy - http://sol.gfxile.net/g3/

▪ SQL Exercises - http://sql-ex.ru/index.php