Re: linking from SQL Server

Oleg,

I've just spent the last couple of hours trying to get this to work - with
little success.

I managed to create the linked server using both Enterprise manager and also
Query Analyser using

EXEC sp_dropserver 'Postgresql'
EXEC sp_addlinkedserver 'Postgresql', 'Postgresql', 'MSDASQL',
'DATABASE=[dbname];SERVER=localhost;PORT=5432;A0=0;A1=6.4;A2=0;A3=0;A4=0;A5=
0;A6=;A7=100;A8=4096;A9=0;B0=254;B1=8190;B2=0;B3=0;B4=1;B5=1;B6=0;B7=1;B8=0;
B9=0;C0=0;C1=0;C2=dd_'

I generated the DSN above from a linked Access table (I've replaced my
actual database name with [dbname] and it works when I test the connection
string in Access.

I tested the connection with:

select * from postgresql...test
select * from postgresql..test
select * from postgresql.test

(The documentation suggests that it wants a fully qualified table name so I
tried all of the above in case there was some mapping taking place in any of
the drivers).

This reports that the linked server has been created but I cannot run SQL
Server queries against it, and cannot find where I can get more details
relating to the OLE DB errors produced.

If anyone can get any further with pls post as I think it would open up some
interesting possibilities.

sb

----- Original Message -----
From: "Oleg Lebedev" <olebedev@waterford.org>
To: "Postgres SQL Mailing List" <pgsql-sql@postgresql.org>
Sent: Thursday, January 24, 2002 9:13 PM
Subject: [SQL] linking from SQL Server


> Hi,
> I am wondering if anybody tried to link PostgreSQL tables/databases from
> SQL Server.
> As I understand SQL Server uses OLE DB for this kind of connections. I
> wonder if this is possible at all with postgres.
> thanks,
>
> Oleg
>
>
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