title: Large sample database for HSQLDB?
body: <p>I'm taking a database class and I'd like to have a large sample database to experiment with. My definition of large here is that there's enough data in the database so that if I try a query that's very inefficient, I'll be able to tell by the amount of time it takes to execute. I've googled for this and not found anything that's HSQLDB specific, but maybe I'm using the wrong keywords.  Basically I'm hoping to find something that's already set up, with the tables, primary keys, etc. and normalized and all that, so I can try things out on a somewhat realistic database. For HSQLDB I guess that would just be the .script file.  Anyway if anybody knows of any resources for this I'd really appreciate it.</p>