Unanswered: Downgrading from Oracle 9.2 to oracle 18.104.22.168
We have a situation where we need to downgrade our database from oracle 9i to oracle 22.214.171.124.
I need to clarify whether in Oracle 126.96.36.199 the following features are compatable or not
1) Global temporary tables
2) Primary Keys supported by non unique indexes
3) Alter table exchange partition
4) Snapshots/Materialized views