Shulou(Shulou.com)06/01 Report--

Do log switch, database handle live, cancel command execution, power off and close the database.

Then log in to the database again, start the database, and the data crashes.

Check the alert log and report ORA-00327 and ORA-00312 failures

The failure indicates that the physical size of the log2 log is 2, which is less than the required 102400, that is, the redo02.log file is corrupted.

Restart the database to the mount state and clean up the redo02.log file

An error is reported, indicating that log2 has not yet filed and needs to be filed. Use the clear unarchived command to clean up the log2 file

The database started successfully.

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