Home Database Mysql Tutorial Oracle数据库恢复命令

Oracle数据库恢复命令

Jun 07, 2016 pm 05:10 PM
o database

恢复controlfile恢复controlfile有三种办法,功能相同,只需要掌握其中一种即可。方法一:从autobackup中恢复缺省情况下,备份数

恢复controlfile恢复controlfile有三种办法,功能相同,只需要掌握其中一种即可。
方法一:从autobackup中恢复
缺省情况下,备份数据库时会自动备份controlfile,如果缺省设置被修改,可以使用如下RMAN命令设置autobackup选项:CONFIGURE CONTROLFILE AUTOBACKUP ON。
 
恢复controlfile的命令
run {
allocate channel ch00 type sbt_tape;
restore controlfile from autobackup;
release channel ch00;
}
 
方法二:直接恢复controlfile,这种方法会自动恢复最后一次备份的controlfile
run {
allocate channel ch00 type sbt_tape;
restore controlfile;
release channel ch00;
}
 
方法三:从指定备份集恢复
先用netbackup命令”bplist –C clientname –t 4 –R /”,找到保存controlfile的backupset id,然后从中恢复。
run {
allocate channel ch00 type sbt;
restore controlfile from '/cntrl_mgr1_44_1_703796294';
release channel ch00;
}
 

 

恢复数据库

 

恢复数据库过程

 

1.     检查备份是否成功,确认需要恢复的备份存在
2.     把数据库启动到nomount状态
3.     恢复controlfile
4.     把数据库启动到mount状态
5.     恢复数据库
6.     打开数据库
7.     验证恢复是否成功
 
恢复数据库的命令1.     全库恢复命令
run {
#分配通道,通道数据量根据数据量和恢复时间要求来确定。
allocate channel ch00 type sbt_tape; 
allocate channel ch01 type sbt_tape;
#缺省情况下,该命令会恢复最后一次备份,如果需要恢复以前的全备份,需要设置until time。
restore database;
#应用archive log
recover database;
release channel ch00;
release channel ch01;
}
 
2.     基于时间点恢复命令
run {
#分配通道
allocate channel ch00 type sbt_tape; 
allocate channel ch01 type sbt_tape;
#设置恢复时间点
set until time "to_date('2009-11-20 17:30:00','yyyy-mm-dd HH24:MI:SS')";
#恢复数据库并做
restore database;
#使用archive log把数据库恢复到until time设定的时间点。
recover database;
release channel ch00;
release channel ch01;
}
3.     基于seqence恢复命令
run {
allocate channel ch00 type sbt_tape;
allocate channel ch01 type sbt_tape;
restore database
#使用archive log把数据库恢复到指定的seqence#
recover database until sequence 29 thread 1;
release channel ch00;
release channel ch01;
}
 
rman不会恢复temp表空间,,所以数据库恢复成功后,DBA需要重建temp表空间。
恢复数据库时有两种可选方法:
nocatalog方式,命令:rman target / nocatalog。
catalog 方式,命令:rman target / catalog rman/rman@rman
恢复数据库时建议采用nocatalog方式,因为catalog方式恢复成功后,catalog database中会记录恢复状态标志,需要手工在catalog database中reset database后才可以继续备份,而nocatalog方式没有这个问题。

linux

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Roblox: Bubble Gum Simulator Infinity - How To Get And Use Royal Keys
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Nordhold: Fusion System, Explained
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Mandragora: Whispers Of The Witch Tree - How To Unlock The Grappling Hook
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Hot Topics

Java Tutorial
1665
14
PHP Tutorial
1269
29
C# Tutorial
1249
24
iOS 18 adds a new 'Recovered' album function to retrieve lost or damaged photos iOS 18 adds a new 'Recovered' album function to retrieve lost or damaged photos Jul 18, 2024 am 05:48 AM

Apple's latest releases of iOS18, iPadOS18 and macOS Sequoia systems have added an important feature to the Photos application, designed to help users easily recover photos and videos lost or damaged due to various reasons. The new feature introduces an album called "Recovered" in the Tools section of the Photos app that will automatically appear when a user has pictures or videos on their device that are not part of their photo library. The emergence of the "Recovered" album provides a solution for photos and videos lost due to database corruption, the camera application not saving to the photo library correctly, or a third-party application managing the photo library. Users only need a few simple steps

MySQL: Simple Concepts for Easy Learning MySQL: Simple Concepts for Easy Learning Apr 10, 2025 am 09:29 AM

MySQL is an open source relational database management system. 1) Create database and tables: Use the CREATEDATABASE and CREATETABLE commands. 2) Basic operations: INSERT, UPDATE, DELETE and SELECT. 3) Advanced operations: JOIN, subquery and transaction processing. 4) Debugging skills: Check syntax, data type and permissions. 5) Optimization suggestions: Use indexes, avoid SELECT* and use transactions.

Top 10 global digital currency trading apps recommended (2025 currency trading software ranking) Top 10 global digital currency trading apps recommended (2025 currency trading software ranking) Mar 12, 2025 pm 05:48 PM

This article recommends the top ten digital currency trading apps in the world, including Binance, OKX, Huobi Global, Coinbase, Kraken, Gate.io, KuCoin, Bitfinex, Gemini and Bitstamp. These platforms have their own characteristics in terms of transaction pair quantity, transaction speed, security, compliance, user experience, etc. For example, Binance is known for its high transaction speed and extensive services, while Coinbase is more suitable for novices. Choosing a platform that suits you requires comprehensive consideration of your own needs and risk tolerance. Learn about the world's mainstream digital currency trading platforms to help you conduct digital asset trading safely and efficiently.

How to install and register the btc trading app? How to install and register the btc trading app? Feb 21, 2025 pm 07:09 PM

This article will provide a detailed introduction to how to install and register a Bitcoin trading application. The Bitcoin trading app allows users to manage and trade cryptocurrencies such as Bitcoin. The article guides users through the installation and registration process step by step, including downloading applications, creating accounts, performing identity verification, and first deposit. The goal of the article is to provide beginners with clear and easy-to-understand guidelines to help them easily enter the world of Bitcoin trading.

MySQL: An Introduction to the World's Most Popular Database MySQL: An Introduction to the World's Most Popular Database Apr 12, 2025 am 12:18 AM

MySQL is an open source relational database management system, mainly used to store and retrieve data quickly and reliably. Its working principle includes client requests, query resolution, execution of queries and return results. Examples of usage include creating tables, inserting and querying data, and advanced features such as JOIN operations. Common errors involve SQL syntax, data types, and permissions, and optimization suggestions include the use of indexes, optimized queries, and partitioning of tables.

Why Use MySQL? Benefits and Advantages Why Use MySQL? Benefits and Advantages Apr 12, 2025 am 12:17 AM

MySQL is chosen for its performance, reliability, ease of use, and community support. 1.MySQL provides efficient data storage and retrieval functions, supporting multiple data types and advanced query operations. 2. Adopt client-server architecture and multiple storage engines to support transaction and query optimization. 3. Easy to use, supports a variety of operating systems and programming languages. 4. Have strong community support and provide rich resources and solutions.

Ouyi Exchange Download Official Portal Ouyi Exchange Download Official Portal Feb 21, 2025 pm 07:51 PM

Ouyi, also known as OKX, is a world-leading cryptocurrency trading platform. The article provides a download portal for Ouyi's official installation package, which facilitates users to install Ouyi client on different devices. This installation package supports Windows, Mac, Android and iOS systems. Users can choose the corresponding version to download according to their device type. After the installation is completed, users can register or log in to the Ouyi account, start trading cryptocurrencies and enjoy other services provided by the platform.

Oracle's Role in the Business World Oracle's Role in the Business World Apr 23, 2025 am 12:01 AM

Oracle is not only a database company, but also a leader in cloud computing and ERP systems. 1. Oracle provides comprehensive solutions from database to cloud services and ERP systems. 2. OracleCloud challenges AWS and Azure, providing IaaS, PaaS and SaaS services. 3. Oracle's ERP systems such as E-BusinessSuite and FusionApplications help enterprises optimize operations.

See all articles