Running Oracle and Ingres on same server

I have a requirement to run both Oracle V7 and OpenIngres 1.2 on the same HP-UX server (running v10.10).

I have heard rumours that there are technical problems which make this impossible.

Can anyone confirm or deny that this really is a problem ?

If there are problems, any detailed info. would be appreciated.

Mailed as well as posted replies would be ideal (see sig for address).

TIA
Nicholas.

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