CentOS / RHEL: Install PostgresSQL Interface for Perl (perl-DBD-Pg)

To install the PostgreSQL interface for Perl (perl-DBD-Pg) on Red Hat Enterprise Linux (RHEL) or CentOS, you will need to have the PostgreSQL client libraries and development packages installed on your system. You can install these packages using the following command:

sudo yum install postgresql-devel

Once the PostgreSQL development packages are installed, you can install the perl-DBD-Pg module using the following command:

sudo yum install perl-DBD-Pg

This will install the perl-DBD-Pg module, which provides a DBI interface to the PostgreSQL database server for Perl scripts.

Alternatively, you can install the perl-DBD-Pg module using the cpan command, which is a command-line interface to the CPAN (Comprehensive Perl Archive Network) repository of Perl modules. To do this, first run the following command to start the cpan shell:

cpan

Then, use the following command to install the perl-DBD-Pg module:

install DBD::Pg

This will install the perl-DBD-Pg module and all its dependencies.

Once the module is installed, you can use it in your Perl scripts by adding the following line at the top of your script:

use DBD::Pg;

You can then use the DBI interface provided by the module to connect to a PostgreSQL database and perform various operations on it.