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Upgrade Oracle 12C

** Myself

## from 10g
- Set new oracle home & Path
export ORACLE_HOME=$ORACLE_BASE/12102
export PATH=$ORACLE_HOME/bin:$PATH
- Run Upgrade Tool
dbua
#check /etc/oratab -> Oracle Home has set to Y
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- Select Source DB
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# case recycle not empty ,Check
# select * from registry$sys_inv_objs;
select * from registry$nonsys_inv_objs;

show recyclebin;
purge dba_recyclebin;

- Check again -or- Fix & check
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-> Next
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Select upgrade timezone -> Next

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-> Next
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(No) Move DB files -> Next
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(No New Listener) -> Next
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I have my own backup -> Next
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-> Finish
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#Check
- sysresv
- sqlplus ->
show parameter compatible
set line 255;select * from v$version









































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