Re: foreign key constraint versus referential integrity constraint
Date: Wed, 28 Oct 2009 20:54:42 GMT
Tegiri Nenashi wrote:
> ... Is adding new view z (as a function of x and y) adding a
> constraint to the system?
I would say not exactly. More exactly it is adding another relation and constraining the resulting system (aka the resulting database). That is different from merely constraining an existing system/database. Received on Wed Oct 28 2009 - 21:54:42 CET