Comment by eatonphil

If folks would like to see more examples of databases built to teach oneself, they get shared on the /r/databasedevelopment subreddit not infrequently.

Some recent ones:

https://www.reddit.com/r/databasedevelopment/comments/1hyig8...

https://www.reddit.com/r/databasedevelopment/comments/1ha5cc...

https://www.reddit.com/r/databasedevelopment/comments/1dqgms...

https://www.reddit.com/r/databasedevelopment/comments/1ix5dz...

https://www.reddit.com/r/databasedevelopment/comments/18knod...

https://www.reddit.com/r/databasedevelopment/comments/1h3w70...

https://www.reddit.com/r/databasedevelopment/comments/1gk18n...

https://www.reddit.com/r/databasedevelopment/comments/1bemf9...

https://www.reddit.com/r/databasedevelopment/comments/1iw6cx...