in reply to Oracle database connection
$ENV{'ORACLE_HOME'} [download]
ENV{'ORACLE_HOME'} = /some/path/up/the/tree [download]
BEGIN { $ENV{ORACLE_HOME} = "E:\\Oracle\\Ora92\\"; } # See man page for DBD::Oracle and seeting of ENV variables. [download]
In this case I was on a Windoze box, but it works the same on *nix
To make DBD::Oracle work I needed to have Oracle installed.