Oracle : Ошибка ORA-01571

"redo version %s incompatible with ORACLE version %s"
*Cause: This software version can not read the current redo logs, and
either crash recovery is required or there are offline database
files that need media recovery. If a file name is listed then
it needs media recovery.
*Action: Shutdown and startup using the compatible software. Do any required
media recovery, and open the database. Shutdown and then startup
using current software. If the file is going to be dropped then
take it offline with the DROP option to skip this check.

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