oracleredo管理

oracleredo管理

1.分類

Oracle中的幾類日志文件

Redo log files –>聯機重做日志

Archive log files –>歸檔日志

Alert log files –>告警日志

Trace files –>跟蹤日志

user_dump_dest –>用戶跟蹤日志

backupground_dump_dest –>進程跟蹤日志

2.操作

查看redo組

SELECT group#,sequence#,members,bytes,status,archived FROM v$log;

查看redo組內成員的明細
select * from v$logfile
添加組

alter  database add  logfile group 4 ('/opt/oradata/orcl/redo04.log') size 52428800;

刪除組

alter database drop logfile group 4;

添加成員
““
ALTER DATABASE ADD LOGFILE MEMBER ‘/opt/oradata/orcl/redo04a.log’ TO GROUP 4;

警告日志

select * from v$diag_info;