| Subject | Re: [firebird-support] Re: Null Foreign Keys |
|---|---|
| Author | Nando Dessena |
| Post date | 2003-09-12T17:52:31Z |
Martijn,
M> As far as I can remember, IB and Fb1 did allow one NULL into an
M> unique INDEX, but not in a constraint. I might be wrong there though.
no, not even one.
And, confusion between keys and indexes is surely one of the top 5 misconceptions
heard at database classes!
Ciao
--
Nando mailto:nandod@...
M> As far as I can remember, IB and Fb1 did allow one NULL into an
M> unique INDEX, but not in a constraint. I might be wrong there though.
no, not even one.
And, confusion between keys and indexes is surely one of the top 5 misconceptions
heard at database classes!
Ciao
--
Nando mailto:nandod@...