I have to downgrade my test database from 220.127.116.11 to 18.104.22.168
I have backup of database from release 22.214.171.124 ( before upgrade on 126.96.36.199),and backup of controlfile,spfile,listener.ora,tnsnames.ora and pwd file.Database is in noarchivelog mode.
What is the most easy way of downgrade?
1) Drop database and unistall oracle
2) Recreating of instance
3) With RMAN,restore controlfiles and datafiles ( but I realised that i have to do recover database,but with drop database I lose all logs).