New here. need advice on an exploit that I'm writing for a final project.

Hi

I need some help with the direction of my project. I want to create an exploit/virus directed only at databases. I'm trying to figure out what my options are. I can learn things very quickly but I only have 6 weeks to finish this project. So my question is what would be the best language to write something like this in (please no java I hate java with a passion). Also where can I find a virus/trojan etc that I can decompile to see the code to get some sort of direction. I am new at hacking and have never written a virus. Any help or resource would be immensely helpful. Thanks in advance!