Revolution/Dreamcard Demo and file access

[Typing80wpm at aol.com]

Just curious...  When someone tries out the demo for 30 days...   Is there 
any type of file access provided with the demo, or is it advisable for  someone 
to install PostgreSQL or SQLite or something else first, so that they  will be 
able to try out file related/record related functions?
 
That SQLite announced sounds so attractive, simply because it sounds so  
tranparently easy (and a small footprint, I imagine).
 
PostgreSQL also sounds attractive, more work, but no royalties involved in  
distribution (if I understand what I read correctly), and a higher degree of  
compatibility with things like Oracle.
 
I am about to search and see if there is any such thing as "personal  
Oracle", or "Oracle Lite"... just out of curiosity.