my $query=<<"EOQ";
create or replace procedure GetNaem( dept_id IN NUMBER, dept_name OUT VARCHAR2 )
is
begin
     select name 
     INTO dept_name 
     from Empl 
     where id = dept_id 
     order by name ;
end ;
EOQ

my $dbh = new DBI::Oracle (or whatever module you're using with params here);
# here you should bind your parameters, but I don't recall the syntax.
# yours doesn't quite look right either, so I would consult the docs

my $func = $dbh->prepare( $query );
$func->execute;