RE: add primary key

Can someone please tell me the answer to this simple question?

-----Original Message-----
From: pgsql-novice-owner(at)postgresql(dot)org
[mailto:pgsql-novice-owner(at)postgresql(dot)org]On Behalf Of mikhail malamud
Sent: Saturday, March 10, 2001 10:55 PM
To: pgsql-novice(at)postgresql(dot)org
Subject: [NOVICE] add primary key

ALTER TABLE Activity add
CONSTRAINT PRIMARY KEY
(
ActivityId
)
What's wrong with this. How do I add primary key constraint.
I tried to look in the docs but I could not find the answer, can anyone
also point me to a place where I could find an answer to this question
without disturbing the entire mailing list with such a probably simple
question.

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