Thursday, 14 June 2012

ORA-00218: block size string of control file "string" does not match DB_BLOCK_ SIZE

ORA-00218: block size string of control file "string" does not match DB_BLOCK_  SIZE (string)
Cause: The block size as stored in the control file header is different from the  value of the
initialization parameter DB_BLOCK_SIZE. This might be due to an  incorrect setting of DB_BLOCK_SIZE, or else might indicate that the control file  has either been corrupted or belongs to a different database.
Action: Restore a good copy of the control file. If the control file is known to be  clean set the DB_BLOCK_SIZE to match control file headers block size value.

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