On Thu, 2006-11-02 at 19:10 -0500, Matthew Terenzio wrote:
> suppose you wanted to be certain that either one of two or more
> columns were present
>
> Like in a user table, either a username or an email need to be present
> to create a row.
>
> You can't use not null because it's an either or s
[mailto:[EMAIL PROTECTED] On Behalf Of
> Matthew Terenzio
> Sent: Thursday, November 02, 2006 4:11 PM
> To: PostgreSQL general
> Subject: [GENERAL] not null across multiple columns
>
>
> here is an interesting question (to me)
>
> suppose you wanted to be certain that either o
here is an interesting question (to me)
suppose you wanted to be certain that either one of two or more columns
were present
Like in a user table, either a username or an email need to be present
to create a row.
You can't use not null because it's an either or situation.
what's the best