Re: find the number of row for each tables - Mailing list pgsql-novice

On Tue, 13 Jun 2000, Patrick Coulombe wrote:

> SELECT * from friends WHERE friends.f_id = strangers.s_id AND
> friends.categorie = 1
> ----------
> 80 rows

SELECT *
FROM friends F
WHERE friends.categorie = 1 AND EXISTS (SELECT *
                    FROM strangers
                    WHERE F.f_id = strangers.s_id);

> Can I just do 1 query and be able to find the number of row for each tables?

We have to use UNION.

Jesus.