restore和recover的区别

restore和recover的区别(转)

recover和restore的区别: restore just copy the physical file, recover will consistent the database. restore 是还原,文件级的恢复.就是物理文件还原.recover 是恢复,数据级的恢复.逻辑上恢复,比如应用归档日志.重做日志,全部同步,保持一致. 用我自己的土话讲就是,用restore先把备份文件拷贝到数据库目录下进行替换,再用recover经过一些处理,数据库就恢复正常了. 1.restore 命…

restore和recover的区别

restore 是还原物理文件 recover 是用日志恢复到一致用了RMAN备份后就必须要用restore还原,然后才用recover恢复 restore——还原,与backup相对,从备份读出恢复备份的数据. recover——恢复,把restore回来的数据经过一番处理变成正常数据. 如果restore,而不recover的话,数据库是打不开的!因为各文件都不同步积累型(COMULATIVE ERPORT):备份上一次积累型备份所改变的数据: 增量型(INCREAMENTAL EXPO…

How to restore and recover a database from an RMAN backup. (Doc ID 881395.1)

APPLIES TO: Oracle Database - Enterprise Edition - Version 10.1.0.2 to 11.2.0.2 [Release 10.1 to 11.2]Oracle Database - Enterprise Edition - Version 11.2.0.4 to 11.2.0.4 [Release 11.2]Oracle Database - Enterprise Edition - Version 11.2.0.3 to 11.2.0.…

EMC networker nmm can restore and recover sqlserver as different name to different location

EMC networker nmm can restore and recover sqlserver as different name to different location That is true. However, we should select this oprtions when installing NMM We need to build empty database on target machine. After that. Yes, you can set up t…

Oracle中Restore和Recovery的区别

一.参考解释一在Oracle的备份与恢复的知识点中,经常会出现Restore 和 Recovery两个词. 由于这两个词在字典中的解释很接近,困扰了我很久.直到我在Oracle的官方文档中看到了以下解释. Restoration:A corrupted data file is overwritten from a backup of the data file .The data file is at a prior point of time than the current databa…

Oracle下rman备份和还原到数据库任意一个时间点

Rman备份为物理备份,启用rman备份必须开启数据库归档,开启归档后相当于给数据库加了一层双保险.Rman备份主要备份数据库的数据文件,控制文件,归档日志. RMAN 备份一. 检查数据库是否启用归档状态.服务器上在Cmd下用sysdba身份登录.查询数据库是否启用归档模式. Sqlplus / as sysdba Select dbid,name,log_mode from v$database; 如果log_mode处于archivelog状态则代表已经处于归档状态. 如果处于noarc…

【12c】12c RMAN新特性之通过网络远程恢复数据库（RESTORE/Recover from Service）

[12c]12c RMAN新特性之通过网络远程恢复数据库(RESTORE/Recover from Service) 通过网络远程恢复数据库(Restore/Recover from Service) 在Oracle 12c中,可以在主数据库和备用数据库之间用一个服务名重新获得或恢复数据文件.控制文件.参数文件(SPFILE).表空间或整个数据库.这对于同步主数据库和备用数据库极为有用. 当主数据库和备用数据库之间存在相当大的差异时,不再需要复杂的前滚流程来填补它们之间的差异.RMAN能够通过网…

一看就会一做就废系列：说说 RECOVER UNTIL CANCEL

这里是:一看就会,一做就废系列数据库演示版本为 19.3 (12.2.0.3) 该系列涉及恢复过程中使用的 5 个语句: 1. recover database 2. recover database until cancel 3. recover database using backup controlfile 4. recover database until cancel using backup controlfile 5. recover database using backup…

Restore Oracle database to another server

1. Copy or remotely mount the backupset folder from the source server to the target server 2. On the target server, export ORACLE_SID as same as the source database and run "rman target /" 3. Restore spfile from backup: RMAN> startup nomount;…

RMAN-06023: no backup or copy of datafile 6 found to restore

一:问题描述我用指定备份集恢复时,报错: RMAN> run { 2> shutdown immediate; 3> startup mount; 4> allocate channel c1 type disk; 5> allocate channel c2 type disk; 6> restore database from tag='TAG20140829T020210'; --从指定备份集中进行转储 7> recover database; 8>…

To restore the database on a new host-将数据库恢复至一个新的主机上

To restore the database on a new host:1. Ensure that the backups of the target database are accessible on the new host.2. Configure the ORACLE_SID on hostb.3. Start RMAN on hostb and connect to the target database without connecting to the recovery c…

How to recover a skipped tablespace after an incomplete recovery with resetlogs? [ID 1561645.1]

n this Document Goal Solution This document is being delivered to you via Oracle Support's Rapid Visibility (RaV) process and therefore has not been subject to an independent technical review. Applies to: Oracle Database - Enterprise Edition - Ve…

转 RMAN: RAC Backup, Restore and Recovery using RMAN

PURPOSE The purpose of this document is to give a quick guide for using RMAN on RAC databases. We will follow this points: 1. Verify the database mode and archive destination.2. Verify connectivity using sqlnet for target and catalog.3. Determine the…

RMAN Restore, Recovery

Complete recovery: rman target / nocatalog startup mount; restore database; recover database; alter database open; -- 在归档模式下恢复的之后, 更改的路径 rman target / nocatalog startup mount; run { set newname for datafile 1 to ‘/<newdir>/system01.dbf’ … restore…

DB restore point and datagurad

######## 12.5.1 Flashing Back a Physical Standby Database to a Specific Point-in-Time The following steps describe how to avoid re-creating a physical standby database after you issued the OPEN RESETLOGS statement on the primary database. Step 1 De…

Oracle RMAN备份中catalog和nocatalog区别

nocatalog方式:用control file作为catalog,每一次备份都要往控制文件里面写好多备份信息,控制文件里面会有越来越多的备份信息,即RMAN的备份信息写在本地控制文件里面. catalog方式:必须要首先要创建目录备份数据库(catalog,也称知识库),建立恢复目录,即数据库的备份信息写到恢复目录里面. 当通过rman nocatalog方式备份Oracle数据库,Oracle使用controlfile存放RMAN的备份信息.因此,当使用Rman nocatalog方式备份…

How to recover a skipped tablespace after an incomplete recovery? (Doc ID 1561645.1)

How to recover a skipped tablespace after an incomplete recovery? (Doc ID 1561645.1) APPLIES TO: Oracle Database - Enterprise Edition - Version 11.2.0.1 and laterOracle Database Cloud Schema Service - Version N/A and laterOracle Database Exadata Expr…

1Z0-050

QUESTION 13 View the Exhibit.Examine the following command that is executed for the TRANSPORT table in the SH schema:SQL> SELECT DBMS_STATS.CREATE_EXTENDED_STATS('sh', 'customers_obe', '(country_id,cust_state_province)') FROM dual;Which statement des…

Oracle备份及备份策略

第二章. 了解备份的重要性可以说,从计算机系统出世的那天起,就有了备份这个概念,计算机以其强大的速度处理能力,取代了很多人为的工作,但是,往往很多时候,它又是那么弱不禁风,主板上的芯片.主板电路.内存.电源等任何一项不能正常工作,都会导致计算机系统不能正常工作.当然,这些损坏可以修复,不会导致应用和数据的损坏.但是,如果计算机的硬盘损坏,将会导致数据丢失,此时必须用备份恢复数据. 其实,在我们的现实世界中,已经就存在很多备份策略,如RAID技术,双机热备,集群技术发展的不就是计算机系统的备份和…

Oracle【IT实验室】数据库备份与恢复之四：RMAN(备份与恢复管理器)

RMAN是ORACLE提供的一个备份与恢复的工具,可以用来备份和还原数据库文件. 归档日志和控制文件.它也可以用来执行完全或不完全的数据库恢复. RMAN可以由命令行接口或者 OEM的 Backup Manager GUI 来控制. 4.1 基本知识 4.1.1 RMAN的组件.概念 1. RMAN 主要包括以下组件: Target Database:(目标数据库) 就是需要RMAN对其进行备份与恢复的数据库,RMAN 可以备份数据文件,控制文件,归档日志,spfile.(…

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