Well, yeah - and rubbish.

Relational theory works for databases, object-oriented stuff for
programming -
the two should not be mixed.

Martijn Tonies
InterBase Workbench - the developer tool for InterBase and Firebird
http://www.interbaseworkbench.com

Upscene Productions
http://www.upscene.com

"This is an object-oriented system.
If we change anything, the users object."

> > I think you can inherit a type from another, types which can be used for
> > field types.
>
> No, it's not about types, it's about tables. A table can be inherited from
> another table which means that the new table inherits fields and the

primary

> key. More precise, the primary key is the same for the base table as for
> inherited ones.