While not allowed as its own entity, there was some traffic months ago
on rolling your own nulls with negative zero. For strings or non-numeric
data, one could use some other convention, such as low-values.
Unfortunately, this can bite back, but it is possible to use such a
convention for the complete absence of value (insert joke here).

> -----Original Message-----
> From: Costas Anastassiades [SMTP:[log in to unmask]]
> Sent: Wednesday, September 09, 1998 10:40 AM
> To:   [log in to unmask]
> Subject:      [HP3000-L] NULL ITEM in Image/SQL ?
>
> How can I get an Image/SQL db to allow  "null" items (inserted as null
> or
> updated to null) ?
>
> Thank you as always.
>
> Costas Anastassiades,
> Intracom SA
> Athens-Greece