Re: no dup rows

Jodi Kanter wrote:

> I have a linking table that has only two fields in it and both are
> foreign keys to other tables. I'd like to ensure that there are never
> any duplicate rows in this table. I was planning on creating a
> multi-column unique index to satisfy this requirement. Is there a more
> appropriate way to accomplish this or am I on the right track?>
> thanks.
> Jodi
> --
>
> /_______________________________
> //Jodi L Kanter
> BioInformatics Database Administrator
> University of Virginia
> (434) 924-2846
> jkanter@virginia.edu <mailto:jkanter@virginia.edu100>/
>
>
>
Just create a primary key on the two columns, that way you get
uniqueness and not null constraints.

-bill