#!/usr/bin/perl
use strict;
use warnings;

use DBI;
use Config::IniFiles;
use IO::File;
use utf8; # Skript ist UTF8-codiert
use encoding 'utf8'; # Strings in UTF8
binmode STDOUT, ':utf8'; # Ausgaben in UTF8
use POSIX qw/strftime/;

$ENV{ORACLE_HOME}="/opt/oracle/oracle/product/10.2.0/db_1";
$ENV{NLS_LANG}="GERMAN_GERMANY.UTF8"; # Datenbank ist UTF8

##</code><code>##

#!/usr/bin/perl
use MyFirma::Standard;

# and now I want to use and have everything like above

##</code><code>##

package MyFirma::Standard;

use GreatExporter => 
   {'use strict',
    'use warnings',
    'use DBI',
    ...
    and so on}