oracle11g OMF 特性与添…

22:40:02 SQL> select member from v$logfile;

MEMBER
--------------------------------------------------------------------------------
/u01/app/oracle/oradata/MYNEWDB/onlinelog/o1_mf_3_88745ykl_.log
/u01/app/oracle/oradata/MYNEWDB/onlinelog/o1_mf_2_88745w0v_.log
/u01/app/oracle/oradata/MYNEWDB/onlinelog/o1_mf_1_88745t68_.log

22:40:28 SQL><wbr> select * from v$log;<br> rows will be truncated<br><br> rows will be truncated<br><br> rows will be truncated<br><br> rows will be truncated<br><br><br><wbr><wbr><wbr> GROUP#<wbr><wbr><wbr> THREAD#<wbr> SEQUENCE#<wbr><wbr><wbr><wbr><wbr> BYTES<wbr> BLOCKSIZE<wbr><wbr><wbr> MEMBERS ARC STATUS<br> ---------- ---------- ---------- ---------- ---------- ---------- --- ----------<br><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr> 1<wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr> 1<wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr> 7<wbr><wbr> 52428800<wbr><wbr><wbr><wbr><wbr><wbr><wbr> 512<wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr> 1 NO<wbr> CURRENT<br><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr> 2<wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr> 1<wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr> 5<wbr><wbr> 52428800<wbr><wbr><wbr><wbr><wbr><wbr><wbr> 512<wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr> 1 YES INACTIVE<br><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr> 3<wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr> 1<wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr> 6<wbr><wbr> 52428800<wbr><wbr><wbr><wbr><wbr><wbr><wbr> 512<wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr> 1 YES INACTIVE<br><br><br> 删除loggroup3<br><br> 22:41:27 SQL&gt; alter database drop logfile '/u01/app/oracle/oradata/MYNEWDB/onlinelog/o1_mf_3_88745ykl_.log';<br><br> Database altered.<br><br> 确认loggroup3已经删除<br><br> 22:42:36 SQL&gt; select * from v$log;<br> rows will be truncated<br><br> rows will be truncated<br><br> rows will be truncated<br><br> rows will be truncated<br><br><br><wbr><wbr><wbr> GROUP#<wbr><wbr><wbr> THREAD#<wbr> SEQUENCE#<wbr><wbr><wbr><wbr><wbr> BYTES<wbr> BLOCKSIZE<wbr><wbr><wbr> MEMBERS ARC STATUS<br> ---------- ---------- ---------- ---------- ---------- ---------- --- ----------<br><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr> 1<wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr> 1<wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr> 7<wbr><wbr> 52428800<wbr><wbr><wbr><wbr><wbr><wbr><wbr> 512<wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr> 1 NO<wbr> CURRENT<br><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr> 2<wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr> 1<wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr> 5<wbr><wbr> 52428800<wbr><wbr><wbr><wbr><wbr><wbr><wbr> 512<wbr><wbr><wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr>