I have one ongonig problem in that the DBI:Proxy on HPUX crashes which is probably due to Net::Daemon not handling client side disconnects gracefully enough. I have to run a cron job every 5 minutes to restart DBI::Proxy if it dies. Installation was difficult (since I am not the DBA) for Oracle, but once it was figured out, the coding was straight forward.
My DBA and SysAdmin both think I have implemented a "BLACK BOX" which they fear, don't trust, and can't seem to get their arms around. But after 1 1/2 successful years of a small production program that works, and with implementations added on for Microsoft SQL on W2K, Linux MySQL and Oracle on HPUX, it is being more widely accepted.
Thanks to the DBI team. I have been very happy with this one and only version I have installed and used thus far.