$ perl -w dbtest.pl
install_driver(Oracle) failed: Can't locate DBD/Oracle.pm in @INC (@INC contains: /usr/lib/perl5/5.8.1/i386-linux-thread-multi /usr/lib/perl5/5.8.1 /usr/lib/perl5/site_perl/5.8.1/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.1 /usr/lib/perl5/site_perl /usr/lib/perl5/vendor_perl/5.8.1/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.1 /usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.0 /usr/lib/perl5/vendor_perl /usr/lib/perl5/5.8.1/i386-linux-thread-multi /usr/lib/perl5/5.8.1 .) at (eval 1) line 3.
Perhaps the DBD::Oracle perl module hasn't been fully installed,
or perhaps the capitalisation of 'Oracle' isn't right.
Available drivers: ExampleP, Pg, Proxy, Sponge, mysql.
 at dbtest.pl line 7