[snowplay]

First, I appreciate the work you've done. Great stuff. Thanks.

Second, I don't imagine these topics fit well with the exercise based course material, but they are of interest to me:

Window Functions, Logic in the database vs in the code, Serialization, Normalization vs Denormalization, Object Relational Mapping, Concurrency & Transactions, Triggers

[AlisdairO]

Glad you've found it useful! FWIW window functions are already covered in the Aggregation section.

The rest of it, yeah, as you say it's not so great a fit.