I think you've got a fairly realistic impression of RunRev. It does have its faults, but it's a marvellous environment to produce high quality applications (now with all sorts of fancy additional possibilities of web deployment etc) very simply.
To draw a graph you can do your own plotting, which is perfectly feasible (as per the online demo on the revMedia page http://revmedia.runrev.com/revMedia/
- not the samples, the actual demo, after a few other demonstrations, it moves onto charting financial data scraped from the web). See this thread for some more insights into that avenue: http://forums.runrev.com/phpBB2/viewtopic.php?t=3431
Better yet! Buy Malte's ChartsEngine (and AnimationEngine for that matter!)
Malte is one of the great contributors to the RunRev community, and has a forte in making stunning results in clean and simple code.
There was a webinar back in July showing the feature set and giving some guidance, I think the link to the recording of that session is here: http://runrev.com/offers/webinar-2009-0 ... Engine.wmv
As for SQLite databases - as long as it's not the free revMedia version, ie Studio or Enterprise required, then RunRev connects to them natively, as well as several other types. Enterprise is required for Oracle. Anyway, RunRev is not specifically a database front-end or design package, so the tools inside mean you will have to do perhaps more work than with FileMaker, say - how that compares with RealBasic I don't know, but I suspect it's probably about the same as with RunRev. Trevor DeVore has a brilliant offering out now, SQL Yoga, which makes things a lot clearer and cleaner, with lots of how to and tutorial material on his site (currently seems to be down for maintenance... although the reported dates concerned are not correct?) so have a look here at least http://forums.runrev.com/phpBB2/viewtopic.php?p=17614
and check back often to see when the site is back.