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Re: Accessing other databases with DBLink when leaving user/password empty

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Hi Adrian,

I tried what you suggested, but still get the following Error:
"Error connecting to the server: fe_sendauth: no password supplied"

What is it I'm doing wrong? Isn't it possible to leave the password empty so that PostgreSQL can retrieve it from the current account?

Thank you.



Adrian Klaver wrote:
On Friday 06 June 2008 2:32 am, Hermann Muster wrote:
Does no one have any idea about that?

Regards.

Hermann Muster wrote:
Hi,

I have the following problem when trying to access other PostgreSQL
databases with DBLink. I followed the instructions on
http://www.postgresonline.com/journal/index.php?/archives/44-Using-DbLink
-to-access-other-PostgreSQL-Databases-and-Servers.html.


My query to get access to another database on the same server looks like
this:

    select dblink_connect('1512','host=127.0.0.1 port=5432
    dbname=Test user=postgres password=postgres');

From the documentation:
http://www.postgresql.org/docs/current/static/dblink.html
Don't do the above.


    select * from dblink('1512','select "Vorname", "Name" from
    "PERSONEN"')
    AS (Vorname text, Name text);

Here do:
select * from dblink('dbname=Test','select "Vorname", "Name" from
     "PERSONEN"')
     AS (Vorname text, Name text);

The question is if it is possible to leave the 'user' and 'password'
empty, so that these are taken from the account I'm currently using, as
described below (taken from the above article).

    [...]
    Below is an example of querying a database on the same server
    and cluster using DbLink. Note if no username and password is
    specified, then DbLink connects with whatever account you are
    currently using.

It is not possible to connect to the other database when they are empty
and it seems that DBLink can't get them from the currently used account.
Can you please help me with that? Thank you.

Regards,
H. Muster



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