Few days ago, I was writing wiki page with user management description. In it, I wanted to have current data about users. Since I'm using wiki which has RSS feed include, I decided to hack on SQL2XLS until it produced RSS feed which I can include within page.
Usage is very similar to SQL2XSL: you just create a bunch of SQL files, and each of them will create one item in RSS feed. Items links in RSS feed will return just that SQL query.
If you need something similar, and have CGI enabled server, get sql2rss.cgi, create SQL files and you are ready to go...
