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Home -> Community -> Usenet -> comp.databases.theory -> Re: NATURAL JOIN without join columbs
Heikki Simperi wrote:
> What should happend in theory when two tables are joined by natural and they
> do not have columns with same name?
>
>
> A (a,b,c)
> B (d,e)
>
> A |><| B
>
>
> Cartesian or empty or error?
>
>
>
> Heikki Simperi
Or effectively as bad ... they do have columns with the same name, such as COMMENTS and you still get a Cartesian.
-- Daniel A. Morgan University of Washington damorgan_at_x.washington.edu (replace 'x' with 'u' to respond)Received on Mon Mar 14 2005 - 08:15:55 CST
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