Adding online redo log files to a group

There are many options to  create logfile to an existing log group. One of the options are using ALTER DATABASE ADD LOGFILE MEMBER  SQL statement.

We are also required to specify the name, location and group to which the log file is going to be added.

SQL>  ALTER DATABASE ADD LOGFILE MEMBER ‘location  of log file’ TO GROUP <number>

Example :

SQL> conn sys/orcl@to_primary as sysdba
Connected.
SQL> alter database add logfile member 'D:\app\Admin\virtual\oradata\orcl\REDO01B.LOG' to group 1;
 Database altered.
SQL>

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