SQL> SELECT * FROM v$logfile;

GROUP# STATUS  TYPE

---

MEMBER

IS_ CON_ID

---

3     ONLINE

+DATA/JY/ONLINELOG/group_3.264.968770057

NO 0

2     ONLINE

+DATA/JY/ONLINELOG/group_2.263.968770045

NO 0

GROUP# STATUS  TYPE

---

MEMBER

IS_ CON_ID

---

1     ONLINE

+DATA/JY/ONLINELOG/group_1.262.968770045

NO 0

SQL> select group#,status from v$log;

GROUP# STATUS

---

1 INACTIVE 2 INACTIVE 3 CURRENT

SQL> alter database add logfile member '+REDO','+ARCH' to group 1;

Database altered.

SQL> alter database add logfile member '+REDO','+ARCH' to group 2;

Database altered.

SQL> alter database add logfile member '+REDO','+ARCH' to group 3;

Database altered.

SQL> select group#,status from v$log;

GROUP# STATUS

---

1 INACTIVE 2 INACTIVE 3 CURRENT

SQL> alter system switch logfile;

System altered.

SQL> alter database drop logfile member '+DATA/JY/ONLINELOG/group_1.262.968770045';

Database altered.

SQL> alter system switch logfile;

System altered.

SQL> alter database drop logfile member '+DATA/JY/ONLINELOG/group_2.263.968770045';

Database altered.

SQL> alter system switch logfile;

System altered.

SQL> alter database drop logfile member '+DATA/JY/ONLINELOG/group_3.264.968770057';

Database altered.

SQL> select a.group#,a.bytes/1024/1024 mb,b.member from v$log a,v$logfile b where a.group#=b.group#;

GROUP#     MB

---

MEMBER

1    200

+REDO/JY/ONLINELOG/group_1.256.968854893

1    200

+ARCH/JY/ONLINELOG/group_1.256.968854895

2    200

+REDO/JY/ONLINELOG/group_2.257.968854901

GROUP#     MB

---

MEMBER

2    200

+ARCH/JY/ONLINELOG/group_2.257.968854903

3    200

+REDO/JY/ONLINELOG/group_3.258.968854907

3    200

+ARCH/JY/ONLINELOG/group_3.258.968854909

6 rows selected.

     本文转自whshurk 51CTO博客，原文链接：http://blog.51cto.com/shurk/2072376，如需转载请自行联系原作者