You will want to use
DBD::Oracle and set, at the very least, $ENV{ORACLE_HOME}. Possibly $ENV{NLS_SETTINGS} as well (or whatever it is). The DBD::Oracle POD is very good at explaining it.
Being right, does not endow the right to be rude; politeness costs nothing.
Being unknowing, is not the same as being stupid.
Expressing a contrary opinion, whether to the individual or the group, is more often a sign of deeper thought than of cantankerous belligerence.
Do not mistake your goals as the only goals; your opinion as the only opinion; your confidence as correctness. Saying you know better is not the same as explaining you know better.
