O'Reilly - View Updating: How to Make It Work

Ever since the relational view concept was first invented, view updating has been a contentious issue. Support in today’s SQL products is ad hoc and meager at best. The SQL standard is even more impenetrable in this area than it usually is. Even the research literature is weak on this topic; numerous approaches have been proposed and found wanting over the years. This presentation, by contrast, describes a way of looking at the problem that (a) appears to be logically correct, (b) is certainly not ad hoc, and (c) works for all kinds of views. The overall message is: Views in general are just as updatable as “base tables” are!