The following is the ORA-19734 error message, you can learn the cause and solution of the Oracle database error.
ORA-19734 wrong creation SCN – control file expects converted plugged-in datafile
Cause: When a tablespace is plugged into a database, the tablespace is initially read only. Oracle converts the header of the plugged-in datafiles (assign them a new creation SCN) when the tablespace is first made read-write. This error occurs when the creation SCN in the file header is different from the creation SCN in the control file, possibly because this is the initial version of plugged-in datafile.
Solution: Either restore the converted datafile or continue recovering the datafile.
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