How to install and configure DBI-Link to join Oracle tables from PostgreSQL on Debian GNU/Linux
   If you want to join Oracle tables from PostgreSQL on Debian GNU/Linux, you can use  DBI-Link .   Also, you can use PostgreSQL queries to access Oracle tables as local schemas.   At some deployment scenarios, one may have to access Oracle tables  transparently using PostgreSQL functions, without installing other  language specific libraries.   There is a caveat for this version:    Each query will load data from remote Oracle server to the local PostgreSQL shadow table.  You can execute remotely on Oracle backend  using remote_select  as described  here .     Installation   You will need the  alien package  to convert rpm files to deb files.   You will need to have an Oracle account to download the Oracle  Instant Client Basic and Oracle Instant Client Devel rpm files suitable  for your Oracle backend version from the vendor site.   At this example, we will use   oracle-instantclient-basic-10.2.0.3-1.i386.rpm   oracle-instantclient-devel-10.2.0.3-1.i386.r...