ORACLE 記錄檔相關查詢

1.查詢系統使用的是哪一組記錄檔：
select * from v$log;

2.查詢正在使用的組所對應的記錄檔：
select * from v$logfile;

3.強制日誌切換：
alter system switch logfile;

4.查詢曆史日誌：
select * from v$log_history;

5.查詢日誌的歸檔模式：
select dbid,name,created,log_mode from v$database;

6.查詢歸檔日誌的資訊：
select recid,stamp,thread#,sequence#,name from v$archived_log;

7.增加與刪除記錄檔組
alter database add logfile group 1 ('/home1/oracle/oradata/ora8i/log1a.log'),'/home2/oracle/oradata/ora8i/log1b.log') size 100M;

alter database drop logfile group 1;

8.增加與刪除日誌成員
alter database add logfile member '/home1/oracle/oradata/ora8i/log1a.log' to group 1,'/home1/oracle/oradata/ora8i/log2a.log' to group 2;

alter database drop logfile member '/home1/oracle/oradata/ora8i/log1a.log' ;

9.記錄檔移動
alter database rename file '/home1/oracle/oradata/ora8i/log1a.log' to '/home2/oracle/oradata/ora8i/log1a.log';
執行該命令之前必須保證該記錄檔物理上已經移動到新目錄

10.清除記錄檔
alter database clear logfile '/home1/oracle/oradata/ora8i/log1a.log';
該命令用於不能用刪除群組及群組成員命令刪除日誌時使用