Upgrade Oracle 12C

** Myself

## from 10g
- Set new oracle home & Path
export ORACLE_HOME=$ORACLE_BASE/12102
export PATH=$ORACLE_HOME/bin:$PATH
- Run Upgrade Tool
dbua
#check /etc/oratab -> Oracle Home has set to Y

- Select Source DB


# case recycle not empty ,Check
# select * from registry$sys_inv_objs;
select * from registry$nonsys_inv_objs;

show recyclebin;
purge dba_recyclebin;

- Check again -or- Fix & check

-> Next

Select upgrade timezone -> Next


-> Next



(No) Move DB files -> Next

(No New Listener) -> Next

I have my own backup -> Next

-> Finish




#Check
- sysresv
- sqlplus ->
show parameter compatible
set line 255;select * from v$version