Subject Re: Helen [IBO] Foreign Key
Author Geoff Worboys

You may be interested in reading the following article as Claudio's

Just remember what Helen had to say about performance problems with
FKs for lookup tables - perhaps also remembering my own little
addition that those performance problems are usually only important if
you are dealing with high volume tables. (I think anything over about
10-20 thousand records should be considered high volume in this
regard, although it all depends on how the table and FKs are used.)

Geoff Worboys
Telesis Computing