>>It doesn't matter if the record is deleted or not. Again, from Date (italics his):
>>
>>
"...it is sufficient to say that the term "tupple" corresponds approximately to the notion of a flat record instance.">>
>>Can you show me where Codd or Date explicitly stated that a record is a non-deleted tupple?
>
>Craig,
>
>Technically, in xBase, a deleted record is unique in the combination of all field values
IF one considers the deleted flag as a field.
Hey Jim,
I'll go along with that.
Craig Berntson
MCSD, Microsoft .Net MVP, Grape City Community Influencer