Joining Between Databases

Started by mwilliamsover 24 years ago3 messagesgeneral
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#1mwilliams
mwilliams@cardcommerce.com

Myself along with a couple of co-workers have been searching for a way to
join tables from two postgres database. So far there are no indication that
this is possible, can someone shed some light on this subject.

(P.S We are attemping to do this in the same database instance)

Michael Williams

#2Bruce Momjian
bruce@momjian.us
In reply to: mwilliams (#1)
Re: Joining Between Databases

Myself along with a couple of co-workers have been searching for a way to
join tables from two postgres database. So far there are no indication that
this is possible, can someone shed some light on this subject.

(P.S We are attemping to do this in the same database instance)

The current snapshot code has /contrib/dblink utility that may help.

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026
#3Andrew Gould
andrewgould@yahoo.com
In reply to: mwilliams (#1)
Re: Joining Between Databases

I join tables from different databases using other
products such as MS Access. I simply link the
PostgreSQL tables from different databases to the
Access file via ODBC and join the tables in the QBE
(Query By Example) window. In fact, I used MS Access
as an intermediary to move data from MySQL to
PostgreSQL.

You can also do this with Paradox, Lotus Approach and
(I think) Perl DBI.

I don't know of any way to do this from within psql.

Best of luck,

Andrew

--- mwilliams <mwilliams@cardcommerce.com> wrote:

Myself along with a couple of co-workers have been
searching for a way to
join tables from two postgres database. So far there
are no indication that
this is possible, can someone shed some light on
this subject.

(P.S We are attemping to do this in the same
database instance)

Michael Williams

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