I built a pretty extensive system for handle course registration as one of my final projects at Buffalo. It included a full sql database. I thought they were actually going to put it into use but they are having trouble converting from the old system. You can take a look at these sample forms to get a feel for what it can do. I don't know how it would fit into the business world, maybe I should market to other schools.

For use with the registration project, a full SQL database was created using PERL. It even handles embedded select statements. Partial additions for ODBC support, but that was not part of the original project.

Recoded most of the site over a period of 3 months. Focus was on increasing performance due to the increase in hits from 200k per day at start to over 1 million per day. Also, added many features including java chat and a searchable form submission admin section.

Fairly extensive chat package for the web.
Take a look for yourself

This was a class project(CS-305) that worked out rather well. Basically, you give it the source for an ML program and it converts the code into Lisp or C depending on your preference. I received 435 points out of 300 points on the project. It pretty much allowed me to blow off the final and still get an A in the class. :)

I originally wrote this back in ninth grade using Basic. I have rewritten it in Pascal and in C, a good way to learn new languages. I was going to write it in Java but it seems to already have been done several times. I guess the most exciting part was making the computer opponent so that it could play half-way decent.