Oracle Error ORA-01205: not a data file – type number in header is string

Oracle Error Message

ORA-01205: not a data file – type number in header is string

Reason for the Error

The file type in the header is not correct for a data file. This is probably a log file or control file. If the type is not a small non-zero positive number then the header is corrupted.

Solution

Restore a copy of the correct data file and do recovery as needed.

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