三者当中有一个不同时,则需要做media recovery.如果在启动的过程中,End SCN为NULL,则需要做instance recovery。Oracle在启动过程中首先检查是否需要media recovery,然后再检查是否需要instance recovery。 参考:https://cloud.tencent.com/developer/article/2154091...
sql>alter database mount(读取控制文件,把数据库mount上),没有实例恢复。 sql>alter database open(检查控制文件,数据文件头,检查数据库的完整性),如果不一致会发生实例恢复。Oracle在打开数据库时(alter database open),会检查每个文件头上的信息(SCN)并同控制文件中相应的信息(SCN)比较,如果不一致,则进行实例...
Media Recovery Start Serial Media Recovery started Recovery of Online Redo Log: Thread 1 Group 3 Seq 3 Reading mem 0 Mem# 0: /dsk1/oradata/prod/redo03a.log Mem# 1: /dsk2/oradata/prod/redo03b.log Recovery of Online Redo Log: Thread 1 Group 1 Seq 4 Reading mem 0 Mem# 0: /dsk1...
If you later restore a backup control file and perform media recovery through the CREATE TABLESPACE operation, then Oracle may signal the following error when applying the CREATE TABLESPACE redo data:ORA-00283: recovery session canceled due to errors ORA-01244: unnamed datafile(s) added to control...
Oracle非归档模式Media Recovery错误之--ORA-26040 系统环境: 操作系统:Linux RH55 Oracle: Oracle 11gR2 模拟案例: 1、查看数据库模式 18:12:36 SYS@ prod>archive log list; Database log modeNo Archive Mode Automatic archival Disabled Archive destination /dsk4/arch2 ...
18 : 13 : 30 2 datafile '/u01/app/oracle/oradata/prod/tbs2.dbf' size 10m; Tablespace created.3、对数据库进行冷备1 2 3 4 5 6 7 8 9 10 [oracle@rh6 ~]$ rman target / Recovery Manager: Release 11.2. 0.1. 0 - Production on Thu Jul 24 18 : 14 : 30 2014 Copyr...
% cp /fs2/BACKUP/tbs* /oracle/dbs Ensure the database is mounted. For example, if the database is shut down, run: STARTUP MOUNT Enable automatic recovery. For example, in SQL*Plus run: SET AUTORECOVERY ON Recover the desired datafiles. This example recovers the whole database:...
Oracle Database - Enterprise Edition - Version 12.2.0.1 and later: ORA-01113: File XX Needs Media Recovery
oracle ORA-01143:cannot disable media recovery 今天一台服务器的开启了归档,导致文件系统撑满了,由于我们是开发库,没必要开启归档,所以就把数据库改为非归档模式,但是在修改的时候碰到ORA-01143: cannot disable media recovery - file 20 needs media recovery错误。后来将数据文件恢复后才将数据库修改成功。
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production Good morning, I need to force the DB to open even if in read mode to export a single schema. is there a way since I dont have backups or redologs.