Hiya! This is the code for the free ebook, The Little SQL Book which you can find right here. It's about 50 pages long, give or take, and digs into creating tables and querying fantasy footbal data from 2019, the goal of which is to create a fantasy cheatsheet.
The easiest thing to do is to run everything in Docker. There's a docker-compose.yml file in the docker directory that has everything you need. It will load up PostgreSQL, PGWeb (a kickass web GUI for Postgres) and the initial set of data.
docker-compose up
If you have any trouble, just leave an issue here.
Have fun!