A full restore is only something being to be done ONLY after all other options has been exhausted, because there will be loss of data.
Starting
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Point
The starting point is that the entire database is either deleted or corrupted, but the basic directory structure is in place:
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In the directory backup/logs you can find the log from the last backup:
Find DBID of
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Database
From that logfile, you can find the start of the last backup, where you can find the DBID of the database.
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In this case the ORACLE_SID is CDRATOR and the DBID is 20141184369.
Find SPFILE
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Backup
In the logfile, at the very end, the name of backup file holding the SPFILE is found.
Find
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Control File Backup
In the logfile, in the section above, the name of the backup file holding the CONTROLFILE is found.
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On the line below the file name is the SCN (System Change Number). In this example a bit covered but readable as 10825040684713.
Restore SPFILE from
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Backup
The following commands shall be executed:
| Code Block |
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SH> export ORACLE_SID=CDRATOR SH> cd $ORACLE_BASE/backup/$ORACLE_SID SH> rman target / RMAN> set dbid=20141184369; RMAN> startup nomount; RMAN> restore spfile from '/opt/oracle/backup/CDRATOR/20170328-ARCH-l4s08qf6_1_1'; RMAN> shutdown immediate; |
Restore
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Control File from
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Backup
| Code Block |
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RMAN> set dbid=20141184369; RMAN> startup nomount; RMAN> restore controlfile from '/opt/oracle/backup/CDRATOR/20170328-ARCH-l3s08qf2_1_1'; RMAN> shutdown immediate; |
Catalog
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Backup Files
| Code Block |
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RMAN> set dbid=20141184369; RMAN> startup mount; RMAN> catalog start with '/opt/oracle/backup/CDRATOR/' noprompt; |
Start
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Restore/Recover Operation
| Code Block |
|---|
RMAN> configure device type disk parallelism 8;
RMAN> run {
2> set until SCN 10825040684713;
3> restore database;
4> recover database;
5> } |
And now there is time for one or more cups of coffee 
!!!!
Open
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Database
If the restore and recover completed without any warnings and errors, you can open the database.
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