From: | Raymond O'Donnell <rod(at)iol(dot)ie> |
---|---|
To: | MrTeeth <lateefnation(at)gmail(dot)com> |
Cc: | pgadmin-support(at)postgresql(dot)org |
Subject: | Re: Primary & Foreign Keys in pgAdmin |
Date: | 2012-03-15 23:08:44 |
Message-ID: | 4F62767C.6000408@iol.ie |
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Lists: | pgadmin-support |
On 15/03/2012 21:50, MrTeeth wrote:
> I was wondering can some give me an explanation on how to assign primary and
> foreign keys in pgAdmin?
>
> I can't find any information online.
>
> For example...I've got a Student table with all their details (address,
> d.o.b. and etc.). I'm going to add a student_number to the table and make it
> a primary key.
In the tree view on the left, right-click on the table and select "New
object", then "New primary key".
If the table already has a primary key, you can drop it and make your
new student number the PK instead. Click the "+" to see the table
attributes; under "constraints", select the PK, right-click and select
"Delete/drop". Add the new PK as above.
>
> I just want to know how do I do that using pgAdmin? And if you may be kind
> to explain give me further information on using Primary Keys in postgreSQL
> (and pgAdmin). The same case with the foreign keys.
Any tutorial on databases will explain PKs and FKs much better than I
can; they're not specific to Postgres.
HTH,
Ray.
--
Raymond O'Donnell :: Galway :: Ireland
rod(at)iol(dot)ie
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