Inheritance and views

Hello.

I'd like to implement for my DB a mechanism of backup based in inherited
tables. I explain it in detail:

Idea is simple: table B inherits from table A. Anualy, data from table A is
dumped in B. So, from frontend it is posible to access current data (from
A) or all data (A + B).

Problem is that I'd like also implement a view for A and B, but I don't
know what is best way. View(s) must have rules for insert and update. Can
view from A access data from B without problem (eliminating "ONLY" from
select)?. Is there another better form of implementing this backup
mechanism?. I'd not want to reinvent the wheel ;)

Thanks for your ideas.

David