[dba-SQLServer] ANSI null compliance

On 9 May 2005 at 19:22, Arthur Fuller wrote:

> 
> With Codd, Date, Pascal and Celko, to name just a few experts in the 
> field, I think there is a problem with nullable columns. In general they 
> indicate that the database model has not been sufficiently considered.
> 

??????????

Codd Rule 3
Null values (distinct from the empty character string or a string of blank 
characters and distinct from zero or any other number) are supported for 
representing missing information and inapplicable information in a 
systematic way, independent of data type.




-- 
Stuart