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From: Ron <ronljohnsonjr@gmail.com>
To: pgsql-admin@lists.postgresql.org
Subject: Re: Connecting 2 databases within the same instance
Date: Fri, 13 Oct 2023 21:15:43 -0500
Message-ID: <cdf55db3-bb2e-79a9-f683-5f2d7c77e6eb@gmail.com> (raw)
In-Reply-To: <DM4PR19MB5978456A60BFFC859BEB889ED3D1A@DM4PR19MB5978.namprd19.prod.outlook.com>
References: <PH2P110MB0922C926B5D471091BFD1304FFD2A@PH2P110MB0922.NAMP110.PROD.OUTLOOK.COM>
	<DM4PR19MB597815380401626E1787AD49D3D2A@DM4PR19MB5978.namprd19.prod.outlook.com>
	<1546706033.6267226.1697247420904@mail.yahoo.com>
	<DM4PR19MB5978456A60BFFC859BEB889ED3D1A@DM4PR19MB5978.namprd19.prod.outlook.com>

Google is your friend.  Searching for "postgresql dblink" and "postgresql 
fdw" take you right to the documentation:
https://www.postgresql.org/docs/15/dblink.html
https://www.postgresql.org/docs/current/postgres-fdw.html

DB Link is much older, while FDW has better syntax and is usually faster:
"
The functionality provided by this module overlaps substantially with the 
functionality of the olderdblink 
<https://www.postgresql.org/docs/current/dblink.html>module. 
But|postgres_fdw|provides more transparent and standards-compliant syntax 
for accessing remote tables, and can give better performance in many cases.
"

On 10/13/23 20:40, M Sarwar wrote:
> Hi,
> Are you saying that Db Link is existing in the Postgress or just referring 
> to FDW ?
> Sarwar
>
>
>
>
> Sent from my Galaxy
>
>
>
> -------- Original message --------
> From: swastik Gurung <gurung_swastik@yahoo.com>
> Date: 10/13/23 9:37 PM (GMT-05:00)
> To: pgsql-admin@postgresql.org, M Sarwar <sarwarmd02@outlook.com>
> Subject: Re: Connecting 2 databases within the same instance
>
> I think any of the two contrib module dblink and/or postgres_fdw could help
> On Saturday, 14 October 2023 at 03:38:33 GMT+5:45, M Sarwar 
> <sarwarmd02@outlook.com> wrote:
>
>
>
> Hello,
>
>  I have one instance and two database within it. What is the simplest 
> approach which I can adopt to connect these 2 database to one another.
>
> I want to have the ability to connect to any table. For example database 
> link in Oracle databases. How can I deploy this gracefully?
>
> Thanks,
>
> Sarwar
>

-- 
Born in Arizona, moved to Babylonia.

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