Thread: Calling a table in another database from plpgsql

Hi,

I have function called test1() in database 1. I need to input the value from
this function into another table which is in database2.

How can i achieve this task in plpgsql. I went through some documentation and
found out that it is possible through dblink.

I infact downloaded the dblink package in contrib folder. But still when i tried
to use dblink in the following manner:

SELECT * from dblink('host=192.168.0.50 dbname=AK1 user=akteam','Select userid
from user_reg') as t (userid integer);

I am getting an error as "ERROR:  function dblink("unknown", "unknown") does not
exist"

Is dblink the only way of connecting the databases and if so what is the exact
step by step procedure to be follwed to download dblink and use it to connect
databases.

Thanks in advance,
Regards,
deepthi

On Wed, 5 Jan 2005, Dave Cramer wrote:

> Kris is correct, this is a jdbc list, however to satisfy your curiosity,
> you can't access data from another database.
>

You certainly can with dblink which is what his question was about.  I
didn't answer him because I remembered a recent off-topic question from
him which I responded to with an answer and a suggestion of the
appropriate list.  As long as answers keep coming the hint will not be
picked up.

Kris Jurka

Kris is correct, this is a jdbc list, however to satisfy your curiosity,
you can't access data from another database.

Dave

deepthi@granwill.com wrote:

>Hi,
>
>I have function called test1() in database 1. I need to input the value from
>this function into another table which is in database2.
>
>How can i achieve this task in plpgsql. I went through some documentation and
>found out that it is possible through dblink.
>
>I infact downloaded the dblink package in contrib folder. But still when i tried
>to use dblink in the following manner:
>
>SELECT * from dblink('host=192.168.0.50 dbname=AK1 user=akteam','Select userid
>from user_reg') as t (userid integer);
>
>I am getting an error as "ERROR:  function dblink("unknown", "unknown") does not
>exist"
>
>Is dblink the only way of connecting the databases and if so what is the exact
>step by step procedure to be follwed to download dblink and use it to connect
>databases.
>
>Thanks in advance,
>Regards,
>deepthi
>
>
>
>
>
>
>
>
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--
Dave Cramer
http://www.postgresintl.com
519 939 0336
ICQ#14675561