Answer / guest

Cause: The block size as stored in the controlfile 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 controlfile
has either been corrupted or belongs to a different database.

Action: Restore a good copy of the controlfile. If the
controlfile is known to be clean set the DB_BLOCK_SIZE to
match controlfile headers block size value.

Please add more information about this Error

NNL-00934: Requests refused, ALIAS-EXISTS violation: number

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ORA-37078: (XSMCSESS06) The dimension being maintained (workspace object) cannot also be used as a step dimension.

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ORA-22054: underflow error

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ORA-00221: error on write to controlfile

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LFI-01522: opendir() failed.

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KUP-04002: error getting file size for file string

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ORA-31634: job already exists

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DRG-11523: unable to lock the specified row for update

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ORA-12060: shape of prebuilt table does not match definition query

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