When you say "move it to the Apache server" is that a different physical machine? I'm not a Solaris expert but just from the text itself it sounds like it might be an architecture issue, like you're calling 64-bit Oracle libraries from 32-bit Perl or vice versa, but if it were the same machine that wouldn't happen. The only other generic thing I can think of is environment variables: to make DBD::Oracle work you need at least ORACLE_HOME and possibly LD_LIBRARY_PATH set depending on the setup.