Databases Reference
In-Depth Information
SCN
Media Recovery
3
Transactions Recovered
RECOVER
2
SCN
Missing Transactions
Online & archived
log files
1
I.
Rollforward
RESTORE
Database
Backup
Undo Blocks
II.
Rollback
Complete recovery
The following image depicts the complete recovery process. In a complete recovery
all pending changes are applied against the database files. The recovery goal is
determined after the information stored in the controlfile .
1. In a complete recovery scenario only the missing or corrupt datafiles need to
be restored.
2. The recovery process aims to recover the inconsistent datafiles.
3. Once the process is finished the database is open.
 
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