Re: Does Codd's view of a relational database differ from that ofDate&Darwin?[M.Gittens]

"Tony Andrews" <andrewst_at_onetel.com> wrote in message news:1118141746.220955.243690_at_o13g2000cwo.googlegroups.com...
> Alexandr Savinov wrote:
> <SNIP>
>
> Which part of the decomposition process reduces 1 row to 0 rows? I
> must have missed that part...

I imagine this can be done by querying the system table register for the name of a table, instead of querying a table for the name (value) of a key.

Instead of writing or deleting a row, you could create or drop a table with zero rows.

Such routines were handy in the "old days" because the utilities of the proprietory DBMS usually included a create table (file) command.

-- 
Pete Brown
IT Managers & Engineers
Falls Creek
Australia
www.mountainman.com.au