If I remember correctly, only the Windows, Solaris, and Linux versions of Oracle 8 were available for download...For IRIX, only the documentation was downloadable...
Thats right. SGI ships also for a short periode of time the o200 with a ORACLE DB but there was never something for 'free' download. We emigrate years ago from IRIX to NOVELL with our Oracle databases and 1 year later Oracle drops also this plattform. Now we have to use MSSQL and for the all web based stuff MySQL.
BTW, the final versions of Oracle for IRIX were 8.1.7 for 64 bit systems and 8.0.6 for 32 bit systems.
With some patches you will get 22.214.171.124.
[o2k]:~ $ sqlplus system
SQL*Plus: Release 126.96.36.199.0 - Production on So Jan 22 10:19:39 2006
(c) Copyright 2000 Oracle Corporation. All rights reserved.
Kennwort eingeben: ***********
Oracle8i Enterprise Edition Release 188.8.131.52.0 - Production
With the Partitioning option
JServer Release 184.108.40.206.0 - Production