3 /u01/app/oracle/oradata/orcl/redo03b.log6 rows selected.
Confirm that you do have at least two members of each group and that all the
members have the STATUS column on NULL, as in the example here. If any
groups do not have two members, multiplex them immediately by following
the steps provided in Chapter 14, Exercise 14-1. If any members do not have
a STATUS of NULL, execute the command
SQL> alter system switch logfile;a few times to cycle through the groups, and then rerun the query.
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