The following is the ORA-16161 error message, you can learn the cause and solution of the Oracle database error.

ORA-16161 Cannot mix standby and online redo log file members for group string

Cause: An attempt was made to add a log file member that does not match the other member types. This problem typically occurs when adding a standby log file member to an online redo logfile group, or adding an online redo log file member to a standby redo log file group.

Solution: Verify the log file group type using the TYPE column of the V$LOG fixed view.


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