Re: 3vl 2vl and NULL

michael_at_preece.net wrote:
> David Cressey wrote:

>> [...]

Not for any definition I've heard of... Did you mean 'values' instead of 'tuples'? "The number of values in the table is rows * columns".

> And every tuple must have a value.

Yes - for tuples as tuples, or tuples misreferenced when values was intended. Further, the component values in each tuple must have a value.

> And if we don't have a actual value for one or more tuples we
> have to use NULL to represent the fact that there is no value.

IMO, this is so confused between tuples and values that there is no value in debating further... :-(

I'm not going to consider the rest of the posting - I would need to understand this much of it before going any further, and as you can tell from my comments, I don't understand what you've written.

Would you be willing to try again?

-- 
Jonathan Leffler                   #include <disclaimer.h>
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