RelaX – relational algebra calculator

The relational algebra calculator helps you learn relational algebra (RelAlg) by executing it.

If you want to learn SQL you take a database system and try some queries.
But if you want to learn relational algebra what do you use? Pen and paper?

The relational algebra calculator helps you learn relational algebra (RelAlg) by executing it.

Well, that’s a REALLY fine piece of software. Sadly there’s no license…