This screen shot an example showing one of Google's easter eggs that I found amusing.
In honour of creating a subtle one myself by accident recently, and the inspiration for me to add it as an option in a PL/SQL Challenge quiz question I submitted. If you're not playing, get in there, learn & have fun - who doesn't like quizzes!
The question submission stemmed from testing out a idea from reading Gary's blog post, which I found interesting, concise and thought provoking. Just something simple involving compiler directives.
For those chasing a simple example of recursion, this would create an infinite loop if executed in Oracle.
create function recursive(pc varchar2) return varchar2 is begin return recursive(pc); end; / select recursive('me') from dual;Done!