0
votes
2answers
85 views

Accept null value on parent column in multipart relationship

EDIT: I've come up with one poor solution (below) that requires some denormalization, but does avoid the risks of UDFs in CHECK constraints. I would appreciate your help if you have a better answer. ...
2
votes
1answer
75 views

Constrains relationship

I have the following design. Each user has it's own contacts, it's own hosts and assign those to a domain which belongs only to him. I want to insure that the host you assign to the domain belongs ...
5
votes
6answers
415 views

Running a database without constraints

We're looking at utilizing a new proprietary high performance database engine for OLAP and OLTP scenarios. One important aspect of it right now is that it does not support foreign key or other ...