SQL> col member for a50 SQL> select group#,status,type,member from v$logfile; GROUP# Status TS Type MEMBER ---------- --------- --------------- -------------------------------------------------- 3 ONLINE /u01/app/oracle/oradata/king/redo03.log 2 ONLINE /u01/app/oracle/oradata/king/redo02.log 1 ONLINE /u01/app/oracle/oradata/king/redo01.log
SQL> select group#,sequence#,members,bytes,status,archived from v$log; GROUP# SEQUENCE# MEMBERS BYTES Status ARCHIVED ---------- ---------- ---------- ---------- --------- --------- 1 4 1 52428800 INACTIVE YES 2 5 1 52428800 INACTIVE YES 3 6 1 52428800 CURRENT NO
SQL> alter database drop logfile group 1; SQL> host rm -rf /u01/app/oracle/oradata/king/redo01.log SQL> alter database add logfile group 1 ('/u01/app/oracle/oradata/king/redo01a.log','/u01/app/oracle/oradata/king/redo01b.log') size 50M;
SQL> alter database drop logfile group 2; SQL> host rm -rf /u01/app/oracle/oradata/king/redo02.log SQL> alter database add logfile group 2 ('/u01/app/oracle/oradata/king/redo02a.log','/u01/app/oracle/oradata/king/redo02b.log') size 50M;
SQL> alter system switch logfile; SQL> alter system checkpoint;
SQL> alter database drop logfile group 3; SQL> host rm -rf /u01/app/oracle/oradata/king/redo03.log SQL> alter database add logfile group 3 ('/u01/app/oracle/oradata/king/redo03a.log','/u01/app/oracle/oradata/king/redo03b.log') size 50M;
SQL> select group#,status,type,member from v$logfile; GROUP# Status TS Type MEMBER ---------- --------- --------------- -------------------------------------------------- 3 ONLINE /u01/app/oracle/oradata/king/redo03a.log 2 ONLINE /u01/app/oracle/oradata/king/redo02a.log 1 ONLINE /u01/app/oracle/oradata/king/redo01a.log 1 ONLINE /u01/app/oracle/oradata/king/redo01b.log 2 ONLINE /u01/app/oracle/oradata/king/redo02b.log 3 ONLINE /u01/app/oracle/oradata/king/redo03b.log
SQL> select group#,sequence#,members,bytes,status,archived from v$log; GROUP# SEQUENCE# MEMBERS BYTES Status ARCHIVED ---------- ---------- ---------- ---------- --------- --------- 1 7 2 52428800 CURRENT NO 2 0 2 52428800 UNUSED YES 3 0 2 52428800 UNUSED YES