Originally database design was included in the overall reviewing on CodeReview.SE. However, now that DBA is here, I'm wondering if those questions would be better here. What do you think?
I answered here
I think it depends if you need a "pro" level review or just basics.
If it's just the basics and you have limited database experience (and there's nothing wrong with the basics) then a generic code review is fine.
If it's a complex schema and you have lots of database experience, then asking here is preferred.
Remember, the audience is professional DBAs on this site -- database specialists. If your question is more basic and general, it belongs on Stack Overflow or Code Review, where there are more generalists.
I definitely think that they have a home here. There's a difference between reviewing a class and reviewing a proper table definition including indexes and expected versus actual performance and the like.
Same goes for queries.
I made a Venn for how I view the site currently: