Oracle数据库控制文件多路复用多路复用控制文件,指的是在系统不同的位置上同时存放多个控制文件的副本,此时如果某个路径对应的磁盘发送物理损坏导致该控制文件损坏,就可以通过另一个磁盘上的控制文件进行恢复.1.查看现在使用的控制文件SQL> select name as 控制文件 from v$controlfile;控制文件--------------------------------------------------------------------------------/u01/ap
About Recovery with a Backup Control FileIf all copies of the current control file are lost or damaged, then you must restore and mount a backup control file. You must then run the RECOVER command, even if no data files have been restored, and open t
现象:业务平台无法登陆,日志报错为ORACLE的错误. 查看oracle日志的报错, ORA-00376: file 5 cannot be read at this time ORA-01110: data file 5: '/oradata/users02.dbf' 看一下oracle状态, SQL> select status from v$instance; STATUS ------------ OPEN 奇怪了,数据库状态正常,还报错,应该是数据文件有问题,查一下数据文件的SCN,发
RMAN ArchitectureThe RMAN architecture, shown in Figure 7-3, includes a target database, repository, and Media Management Layer, as well as Server Processes, Channels, Backup Sets, and Backup Pieces. The target database is the database that is either
真题1. 如何备份控制文件?备份控制文件的方式有哪几种? 答案:备份控制文件的方式有多种. ① 备份控制文件可以在线进行: SQL> ALTER DATABASE BACKUP CONTROLFILE TO '/tmp/control.ctl';--热备份控制文件 SQL> ALTER DATABASE BACKUP CONTROLFILE TO TRACE AS '/home/bk/a.ctl';--得到建立控制文件的脚本,备份为文本文件格式 SQL> ALTER DATABASE