It introduced Cache Fusion , which allowed for high-availability clustering by letting multiple servers share a single database.
The official download from Oracle (via OTN, now Oracle Technology Network) for 9.2.0.1.0 came as multiple CDs or a single ZIP bundle: oracle 9i database 9.2.0.1.0 download
Once you have the binary, here is a condensed installation guide for a VirtualBox or VMware environment. It introduced Cache Fusion , which allowed for
| Feature | Review | |---------|--------| | | Revolutionary – shared-cache architecture without shared disks partitioning. But 9.2.0.1.0 had a bug: frequent instance evictions under load. | | Flashback Query | Allowed SELECT ... AS OF TIMESTAMP . Game changer for accidental deletes. Still buggy – required undo retention tuning. | | Data Guard (Physical Standby) | Worked well, but switchover required manual ALTER DATABASE COMMIT TO SWITCHOVER . | | Oracle Enterprise Manager (OEM) | Java-based console – horribly slow on 128MB heap. DBCA (Database Config Assistant) was the only reliable GUI. | | PL/SQL improvements | Native compilation (C), BULK COLLECT , FORALL – massive performance gains. | Game changer for accidental deletes