How do i create postgres to oracle dblink? - postgresql

How do I create dblink in postgres 9.2 ? I want to be able to use it using # link in oracle? I am using postgres 9.2 64bit. DBlink is from postgres 9.2 to Oracle 11g.

If you need to access postgresql FROM Oracle:
http://dbaspot.wordpress.com/2013/05/29/how-to-access-postgresql-from-oracle-database/
If you need to access Oracle FROM postgresql:
http://pgxn.org/dist/oracle_fdw/

Related

How can I migrate aws postgres 9.5 to postgres 12.7?

I am using Amazon Web Services RDS Postgres 9.5.
It is quite old and I want to know how should I upgrade to Postgres 12.7 ?
Is there a way to back it up in Postgres 9.5 and restore it to Postgres 12.7 ?
(Can this be done within AWS itself ?)
Thanks.

How do I merge database Oracle and Postgres into a Select?

I have DBeaver and 2 DB connections, Oracle and Postgres. I would like to know how do I use the 2 databases in my select?

Inserting differntial data into postgresql table from db2 table trough trigger

I am looking the differential data load from db2 tables to PostgreSQL. Is there any free tool? or how I can write the trigger to connect two databases?
will db2_fdw in PostgreSQL will help me to do this?
You can't write to nicknames in triggers in Db2.
You may use SQL Replication to a federated data source (PostgreSQL in you case) depending on your Db2 version.
11.5 Federation for PG
11.1 Federation for PG

Switch between databases in PGAdmin4

How we can connect to specific database by using sql commands in pgadmin4 postgresql
in psql command line,its already working \c database name,same thing we want to connect to specific database in pgadmin4 postgresql
The pgadmin4 SQL window executes only SQL commands, which are bound to a specific database. \c is an internal psql command.
You need to open separate SQL windows per database in pgadmin4.

Difference between the similar databases at Postgres 9.1 and Postgres 9.3

I have a database at Postgres 9.1 which is well optimised (indexes). When I make dump from it and restore it to another server with Postgres 9.3, it works very slow. What is the difference between these versions? Should I disable any features in Postgres 9.3?